Shipped very quickly from Aircraft Spruce.
After installation, airplane started like never before in our experience ...very quickly.
Colin B
March 2, 2021
Great battery.
Dave C
February 19, 2021
Concorde RG-35AXC is a great battery. The last one we purchased was in installed in our Cherokee 180 that flies 500 - 700 hours a year in a flying club. We installed that battery in October of 2015 and replaced it in January of 2021, so we got more than 5 years of service out of it. We replaced the battery in the Cherokee not because it failed, but because it seemed to be getting weaker on cold mornings (at, or slightly above, freezing in Dallas), and we were tired of club members reporting that they werent able to start the cold-soaked engine. In the last 20 plus years, weve probably purchased 6 of these batteries for multiple aircraft and have never gotten less than 4 - 5 years of service out of one of these batteries.
John B
February 11, 2021
The first start after install was almost instantaneous. The prop didnt make even make a full rotation before it started. I highly recommend.
Dale
February 1, 2021
Excellent product and exceptional customer service.
Mike
January 27, 2021
Love these batteries! They are by far the longest lasting and most powerful of the various batteries I have tried in my Lycoming O-540 powered Cherokee!
Robert H
January 21, 2021
Last one lasted 7 years.
Thomas K
January 11, 2021
As expected, same one I used last time
Bill S
January 4, 2021
Good start. Maintenance free
Rafael P
December 25, 2020
Replaced a Gill that only lasted just under 3 years in my M20J and am very happy. With the first start attempt on the Gill, the prop would only turn about 1 revolution and stop, then had to try a second start that would turn more revolutions. The Concorde spun the prop normally on the first start attempt - couldnt be happier.
Jeff W
December 25, 2020
all good!
Rex
December 25, 2020
Thanks, you are certainly my go to source for airplane parts.
Robert C
December 12, 2020
Our last one lasted over 5 years with regular use. Hard to beat that from a battery.
Mark M
December 11, 2020
Fair price. Quick delivery. Well packaged.
Randall C
December 2, 2020
Arrived very quickly. Thank you!
Karen
November 30, 2020
The RG 35xc currently installed in 2 airplanes are on their 7th year...but it is time to replace, hence this order
Gary K
November 27, 2020
This is a great battery. However, I had to reorder the battery as the first one was received damaged in shipment. I have made the mistake of not checking the damage immediately after opening the box and started cutting away some of the plastic material to make wires fit perfectly within my Cherokee battery box. Aircraft Spruce was understanding of my dilemma and sent a new battery. Great service. Thank you!! The replacement battery arrived in perfect condition.
Kurt B
November 26, 2020
They can last 5 plus years if plane parked inside.
Aero C
November 25, 2020
Battery arrived when promised and, since it replaced a previously installed Concorde, it fit like a glove and worked like a charm.
I looked up the installation date of the old Concorde and was shocked to find that it had lasted me 13 years - despite the fact that I never treated it particularly well. I hope this one lasts as long.
Sarosh P
November 23, 2020
Excellent service / excellent product.
Steve
November 16, 2020
First battery came in damaged. You immediately sent a replacement and picked up the damaged one.
Gregory S
November 6, 2020
Work well
Kestutis T
October 21, 2020
Great service.
Kris M
October 16, 2020
Concord batteries are top quality, long life and great performance. Wouldnt trust any other brand in my aircraft.
Ken N
October 12, 2020
Easier starts with extra cranking power. Dropped right into my Debonair with no troubles.
Mike
October 12, 2020
It appears to have done the trick. It fits in the plane as expected and appears to have good cranking power, time will tell.
Ted C
October 12, 2020
Ordering was easy, it arrived in perfect condition within a couple of days and replaced the same battery, which showed no sign of any corrosion after 3.5 years. Replacing the battery was proactive maintenance, not a requirement.
Mark D
October 9, 2020
Aircraft Spruce delivered the battery on time as promised and it was exactly as i ordfered ande per4formed perfectly.
Charles F
October 7, 2020
Best investment / addition Ive purchased for the plane. After 3 of the other Batterys in 3 years the swap to the Concorde was a very pleasant experience. HIGHLY recommend!!
John W
October 7, 2020
This is the third Concorde RG-35AXC in 13 years of ownership.
:: the first was in the airplane when I bought it.
:: The second I installed in September, 2011, and consistently used the bespoke desulfating BatteryMinder by VDC Electronics -- except that sometimes when in for maintenance my request to keep the charger hooked up was forgotten. Maintence is *hard* on batteries because the master switch goes on and off many times through the days or weeks, and this, without recharging, causes loss of capacity and sulfation. Finally, in August, a mechanic failed to start the engine properly after maintenance and ran the starter until the battery was flat. Despite the BatteryMinder, the battery had lost so much capacity that the starter labored to turn the engine. So... 2 after 2 weeks short of 9 years of service, I replaced the battery. It was 5 weeks past manufacture, so I put it on the BatteryMinder before I put a load on it. The engine turns over just fine...
I expect good service from this one as well.
D L
September 14, 2020
Great
Bob Q
September 11, 2020
I have been using Concord batteries since 2001 when I bought my first airplane I believe they are better than the other major brand and I get at least 6 years service from them. Aircraft Spruce delivered the battery quickly after my order and shipping was included in the price which was very reasonable.
Bruce R
September 8, 2020
Excellent product delivered in a timely manner with no errors made by Aircraft Spruce. Met my expectations and the battery is fully operational. Good Job!
Richard C
September 7, 2020
Replaced identical model installed in 2011. Almost 10 years of service. What more can you ask for?
David H
September 3, 2020
Super fast shipping!
William D
August 24, 2020
Everything went as planned. Battery arrived safe and secure in a few days.
Wayne H
August 19, 2020
It starts my O-540 engine and takes a charge from my alternator. What more could you want?
Dale A
August 11, 2020
Price was less than Amazon, delivery was quick and on time. Plane was back up in short order. Very happy
Phil T
August 6, 2020
Battery came almost immediately (2 days) and was in perfect condition.
Great company!
Daniel S
July 30, 2020
good product
Ray B
July 27, 2020
Working well so far.
Kenneth J
July 16, 2020
All excellent
George C
July 8, 2020
Works well
Bob
July 6, 2020
Quality product that has been my most reliable aircraft battery.
Parrish C
July 6, 2020
Two day shipping, came sufficiently charged to install right away.
Andrew H
June 30, 2020
The item was what was ordered, it arrived undamaged.as scheduled.
Wayne S
June 19, 2020
Heavy duty. Does the job. Last one lasted four years.
Richard
June 19, 2020
Thanks
James S
June 12, 2020
Alls well, item arrived in a timely manner as promised, arrived in good condition, I am Happy!
Mark B
June 11, 2020
This battery ordered to replace same. Last one lasted 5 years. Rapid delivery from Aircraft Spruce.
Doc
June 11, 2020
Awesome battery. This is the second I have purchased. Long life, No maintenance. Definitely worth the little bit extra for the AXC.
Mark P
June 11, 2020
Ordered battery.
Received battery quickly.
Installed in plane next day.
Started just like it should.
Had a great local flight, just drilling holes in the sky.
5 of 5
Walt
June 10, 2020
Great battery! Amazing fast delivery. Thanks Aircraftspruce.
Jorge
May 30, 2020
Got tired of jumping my Cherokee due to low battery so bought this new Concorde. Dropped her in, hooked her up and Cherokee fired up like a champ. So far, so good. Time will tell.
Robert L
May 28, 2020
I live at south western Arizona and get 6 years of service out of these Concordâs. The cheaper brands last 3 at most. They are expensive but wonât leave you stranded at a strange airport without warning!
Bob L
May 24, 2020
Excellent service, as always. The product arrived promptly and was installed on my aircraft that day.
Tim V
May 8, 2020
Just got it. Easy install, works fine, hope it will last a long time.
Richard D
May 1, 2020
Best battery on the market. I requested the STC application from Concorde, sent it back and within 15 minutes it was in my inbox.
Robert P
May 1, 2020
Best battery for my Bonanza
Dan D
April 27, 2020
I have had airplanes since 1999. My previous batteries never lasted more than four years. My current airplane has had a Concorde battery installed since 2012 and its now just starting to fail. I am happily ready to purchase a Concorde replacement.
Michael
April 24, 2020
The battery, of course, was perfect. The delivery was exceptional. I had the battery in my hands in 2 days. Could not have been better.
John H
April 10, 2020
highly competitive price, free delivery, tracked delivery that was on time. Awesome
Andy W
April 9, 2020
Battery came on time and is working as advertised. Concorde makes a good battery
Ray L
April 7, 2020
15 years ago I was paying $100 for a Gill in my 182. 10 years ago I opted for this Concorde RG-35axc. I will repeat that purchase next time I need to replace the battery. More starting power than the old wet cell. I have had the plane sit in the hangar for 3 months in Idahos cold winter, started right up after sitting that long. Also after ten years it performs at least 90% of new, not ready to swap it out yet, very long lasting. Expensive? Sure is. Worth it? damn right.
Douglas M
April 4, 2020
My plane starts sooo nice and fast
Thank you very much
Mike
April 3, 2020
I recently just replaced my previous RG35 sealed battery with another one and I am very satisfied with my choice. The old battery was showing signs of age and it is definitely noticeable with the new battery and how rapidly it spins the prop and maintains a proper charge. As long as I own an airplane Ill always use Concorde Platinum Series sealed batteries.
Marc S
April 2, 2020
I just replaced my first RG-35AXC with a second one after 10 years of use. It was still cranking the engines on my Seneca II albeit a little more slowly than when new. But after 10 years, I think I got my moneys worth. It never let me down once in 10 years. Hope to get 10 years from this one. Didnt hurt that I always kept a battery minder on it in the hangar.
Al B
March 11, 2020
Nice form/fit function for Gill. Shipping was perfect.
Thanks,
Bruce
Bruce G
March 9, 2020
Thanks
Feher R
March 8, 2020
Have had very good luck with these batteries. No battery fluid spillage or evaporation. Cranking power is always there. I strongly recommend it!
Inder S
February 29, 2020
My last Concorde RG-35AXC battery lasted 6 years. They are good batteries with no service required and no leaks. Aircraft Spruce shipping speed was excellent.
Thanks
Herman J
February 20, 2020
Batteries received on time, in a serviceable condition without any defect.
Mohammed Y
February 7, 2020
Ive replaced a 7 year old Concorde RG-35AXE with this new battery. The old battery works fine but I cant trust it at seven years old. I got this new one and I have the old battery at home for backup in my home solar charger. Excellent product.
Scott
February 2, 2020
Excellent service
Robert S
January 19, 2020
The previous one of these lasted 5 years in a Cessna 180. Best battery performance ever. One day delivery was great.
James
January 18, 2020
Replaced the previous RG-35AXC which was still turning over an O-540 after almost 8 years although getting weaker in cold temps. Fresh battery delivered with a good charge. Spins the prop much faster now. Hope to get another 8 years out of this one. Excellent service with free shipping included.
Greg
January 13, 2020
Expensive but powerful battery.
Sid B
January 6, 2020
On time delivery, packaged well, easy to install. Hope it performs better than replaced battery
Steve S
January 6, 2020
Arrived quickly (2 days), worked as-expected.
Joe H
January 2, 2020
Good staff
Gordon L
December 26, 2019
You always deliver fast. Some how I got the wrong battery and you immediately corrected it and sent me the right one with a label to send back the exchange. Thanks for your fine service.
Don L
December 23, 2019
Arrived on time, properly wrapped, no damage.
The cost was similar to that of a Harley Davidson (HIGH).
R L
December 12, 2019
Excellent
Max C
December 12, 2019
Delivered quick and got me back in service!
Jason
December 9, 2019
Just purchased the RG-35AXC to replace my last one, which lasted 7 years. Very reliable, powerful battery.
Allan
December 6, 2019
Just replaced the one in the plane after 5.5 years, so not too bad. I hope this one lasts just as long!
Byron G
December 1, 2019
Just received my latest RG35AXC. The first one lasted 8.5 years!!! It will still start the plane, but is getting a little weak even after charging with the battery minder. Concorde is the only battery Ill use.
Jeffrey K
November 19, 2019
Concorde has become the battery we suggest to our customers. They do a great job and priced well.
Cindy
November 6, 2019
Came on time, undamaged and as advertised. Premium product.
Stu
October 25, 2019
Bought one in 3/2012 and it is beginning to crank a little slow. Looks like almost 8 years out of the battery so I will be buying another in the next year.
Curtis B
October 23, 2019
Good battery and will last
Bary
October 20, 2019
No surprises
Ron L
October 20, 2019
Good value for a great battery
Michael M
October 19, 2019
Excellent drop in replacement. I had the RG35a and it was in for 10 years before the cranking power started to drop hope this one lasts as long.
David K
October 12, 2019
The battery came to me fully charged. I installed it into my plane, checked the electrical system and then took off for a few times around the pattern. So far, Im very pleased with the new battery.
Royce T
October 10, 2019
Great item - bought to replace the exact same battery because the original one was so good!!!
Jeremy S
October 4, 2019
Shipping was fast and the ordering process was quick and accurate. Thank you.
Karen H
September 24, 2019
Strong battery! Easy to handle installation.
Kevin G
September 19, 2019
Easy Website Navigation, Easy Payment Options, Excellent Product & Super fast shipment- thanks!!
Jeremy S
September 9, 2019
Great battery. Canât go wrong- my last one lasted 5 years
Robert K
September 7, 2019
Great battery with plenty of power.
Kier S
August 28, 2019
Great product. Fast delivery
Glenn
August 15, 2019
Concord is an excellent battery !! I changed mine out with 5 years in service and still starting my twin good. I have heard of Concord batteries going but for the price and dependability you canât go wrong.
George K
August 12, 2019
An exact replacement for a 5 year old concorde Rg-axc which was getting sluggish but still firing
up my Beechcraft Sundowner. Arrived from ACP East to Tallahassee, Fl., in about 3days, faster than
a letter! I left a note to leave on the step so I would not have to carry downstairs. Concorde provides good long service and is about good as they get.
Have been buying from AirCraft Spruce when they started out mostly selling spruce, dope and
covering supplies near the Griffen airport. Great Company!
Cleon P
July 27, 2019
Timely and accurate.
Scott T
July 22, 2019
Arrival in 2 days with free shipping in good condition and has great cranking power.
Michael N
July 20, 2019
Cant say enough about the Quality & Fit.
Ray
July 3, 2019
The battery is my standard but getting it from Aircraft Spruce makes it a no-brainer. Fast, cheap, and easy.
Mark
June 9, 2019
Needed a new battery to give the freshly overhauled io520 in my C185 floatplane some cranking juice. No worries of hung starts now! Have to wait till winter to see how good it cranks when below freezing. No hazmat shipping is a big plus here in rural Alaska too.
Timber
June 5, 2019
Purchased in 2008 and still going strong 11 years later. Starting a 200 hp IO-360 with 640 hrs of operation in an AcroSport 2 . Best battery going.
Brooks A
May 8, 2019
Extremely fast shipping. Had it in two days. Shipping was free too! Battery arrived ready to install and in perfect condition.
Poncho
April 28, 2019
This is the second Concorde sealed battery I have used. The first lasted well over four years, and is still showing good voltage. However, the capacity seems to be somewhat diminished, and I donât want to stress the charging system. I do recommend using a Battery Minder with this type of battery.
Robert T
April 9, 2019
The battery arrived earlier than expected, packaged well, and with complete documentation. It was the correct model, as ordered, and it fit and performed as expected.
Stephen R
April 4, 2019
Shipped in good condition, charged from the factory, installed in place of the g35 Gil I had, fit perfectly in the Hammock aviation stainless steel battery box and spun up the io520 like it had the plugs out.
My first Concord. It defiantly will not be my last.
Thomas F
March 30, 2019
Good Experience
John C
February 15, 2019
This battery has significantly more cranking amps and less maintenance due to being sealed. Important to do new weight and balance as it weighs 5 lbs more in order to get extra amps. I keep this on manufacturers recommended â battery minderâ charger in the hanger to extend life and health of the battery
Rob
January 6, 2019
Pricey, but a direct drop in for my 1958 Piper Tri-Pacer PA22-150/160.
Chris
November 18, 2018
Always a good choice...last one was in service for 4.5 years...Speedy 3 day delivery from Spruce...
Leisure R
November 3, 2018
I just bought a new one of these (RG-35AXC) to replace the one I bought 6 years ago.
Jerry M
October 28, 2018
I just took one of these out of service that had been in service in the aircraft for 9 years! I installed one in my own Piper PA-12 3 years ago. Still going strong. With 48 years in the aircraft maintenance business and after servicing hundreds of batteries, this is the best battery for airplanes I have ever been around. And no boil over mess.
Rocket A
September 18, 2018
Arrived quickly and shipped easily since itâs sealed.
Roy B
September 10, 2018
fast shipment and just what I wanted
Bill R
September 1, 2018
Last one only lasted nine months. I noticed something different about it when I installed it. I have one that lasted six years. I hope this one lasts that long or longer.
Daniel W
August 23, 2018
American made in the tradition everything used to be. Got 8 years out of my last wet one in my Trubo Arrow IV, delighted to trade up to maintenance free. Bought brand new Batteryminder to go with it as my previous was too old to upgrade to sealed battery specs, and had them send me a remote temp sensor to go with it as in the winter I heat the interior of the Arrow while the charger is external in a very cold hangar, so the attached sensor is innacurate. Expect to get many years of reliable use, itâs an excellent product. Found out recently Concorde makes milspec deep cycle batteries for marine and RV use, ordering some as well.
Tom C
August 9, 2018
Great battery. Will last 5 years (capacity at or above 80%) with proper maintenance. Use the Concorde recommended Battery Minder.
John
July 18, 2018
Arrived well packaged and ready to install. This battery along with the Batteryminder has kept my
1967 B33 starting like a champ. Even in the hot 100 plus degree days in hangar storage in Texas.
C. H
June 28, 2018
I have had long service from regular RG-35A batteries since 1990 but was never able to crank the IO-550 in my C-182 thru on the first try. Recently tried a RG-35AXC and for the first time since the IO-550 install in 1996 it cranks thru compression on the first try , every try , even in below freezing weather. Wish I had known the AXC version was so much more powerful a long time ago. Im sold.
Reginald G
June 5, 2018
Best battery I have seen in my 46 years as an active A&P, and an IA. lasts way longer than your typical aircraft battery, with no boil over damage to battery boxes.
Rocket A
May 31, 2018
Best battery made
Kloker A
May 23, 2018
This is the third time I have purchased this battery for my Turbo Lance. The first battery I got 3 1/2 years and the last one got just over two years. This battery is worth the extra $$$ over the red one. No spills and plenty of juice to turn over the big Lycoming.
Michael D
May 10, 2018
Best battery available, but not cheap.
Last one, I changed out after seven years.
Richard B
April 22, 2018
Great battery arrived in less than 2 day.
Jc
March 29, 2018
The first Concorde RG-35AXC I purchased lasted 10 years on my Cherokee 140. I kept it maintained with a Battery Minder with a desulferizing function. This new one came promptly and in good shape. Voltage measured 12.65 volts so I put it on a trickle charger overnight before installing to bring it up over the recommended minimal voltage. It works great and really spins my 0320 Lycoming. Would highly recommend this battery and Aircraft Spruce. Great product- no leakage or battery box corrosion or terminal corrosion for the life of the previous battery.
Jerry W
March 12, 2018
Best battery in the business. This is my second one in 5 years.
Abraham T
March 4, 2018
Good battery. For Cessna 182P was disappointed in having to modify battery cover to make battery fit. Got mod drawing from Concorde as they know the battery doesnât fit these airplanes. Mod was easy but would have like to have known before I purchased.
Irving V
February 16, 2018
This is my second Concorde battery. The first one went to seven years. The three gill batteries before that went an average of two years each and they spewed acid on the inside of my battery box. This one will not do that. Just be very careful with tightening torquw on the terminals because it can strip easily and other than that itâs the best thing going
Byron R
February 3, 2018
Installed 9/2011, maintained with BatteryMINDer Concorde-bespoke charger, aircraft voltage regulator set at 14.2v. Lost the alternator in IMC last month, drew the battery down to 11.8v. Now does not take a full charge. Excellent longevity given this stress.
Danl J
January 18, 2018
Rocket A
January 12, 2018
The five star rating is solely on expectations based on the last Concorde RG-35 battery I had. It lasted 8.5 yrs, and I used a generic battery minder when parked. The battery had always performed well and there was no corrosion at the terminals.
Carl
December 24, 2017
Received battery a day early! It was charged and ready to install that same day. And to boot the customer service was awesome!
John P
December 12, 2017
Battery arrived on time and no damage. Voltage was good to go for installing. Really like the free shipping!
Michael H
October 27, 2017
Why anyone would buy a Gill non sealed battery is beyond me. This is 10x the battery for about $100 more. And... it doesnât leak acid inside your 100k investment. A no brainer
Sean
October 27, 2017
Just bought my second one. First one still going strong pushing 8 years but in light of some unrelated age concerns I chose to be cautious.
Ol Pink (3 in 4 yr) left me high and dry on several occasions.
Just get the battery AND the BatteryMinder charger!
Lee M
October 19, 2017
This platinum series battery from Concord RG35AXC is a solid performer in my Mooney F model. I have a SKY-tek starter installed and this battery gives solid starting power. Like other commenters I started getting 2 yrs out of the Gill batteries and I was fighting some corrosion with the wet cells. I had used Concorde before the Gills and got 5 yrs out of the wet cells. So in March 2011 I purchased this upgraded Concorde battery and Im so glad I did. It just started weakening several months ago (in Aug 2017) so I did not want to go into winter and risk getting stuck due to a battery issue. So, am replacing it after 6.5 years. Thats right...6.5 yrs. It has the highest CCA in its class and it has never shown signs of corrosion. Note: I have kept a low amp AGM automatic charger on it during periods longer than 3 weeks and colder winter periods. Perhaps this has helped??? I should note that the Gill tech staff has been very helpful and knowledgable in my past conversations w them.
Zolin
October 8, 2017
Simply the best aircraft battery on the market right now. Shipping was free and still arrived in only three days.
Nick
September 25, 2017
Awesome battery, upgraded from Gill, the difference in CCA spin up the big 3 blade prop way faster. Love not having to worry about acid leaking.
Seth J
September 23, 2017
I have owned my Cherokee 235 for almost 20 years now and was replacing the battery every 2 years. I purchased the XC battery seven years ago and just now replaced it. My plane was still starting but it showed signs of getting weak when starting in temps in excess of 105 degrees F. Best battery I have every had.
Ron W
September 10, 2017
I got this battery to replace a four and a half year old 35AXC. This is now my third one, and the two previous ones had good service lives.
Joshua M
September 7, 2017
My last RG-35AXC Lasted 5 1/2 years in my
Beechcraft V-35-B in the extreme Florida climate. Still working OK when removed. A super product.
Robert N
August 23, 2017
This is the only battery that I will use now in my R44 helicopter. The basic R25 just wont do the job... I installed a new battery and a new starter before reverting to the RG35AXC.... twice the cold cranking amps... it rips!
Brian C
August 17, 2017
Excellent performer.
Bob
July 20, 2017
Nominal voltage was over 12.5 volts, allowing for a quick change then placing the battery into service, with no lost missions for the customer.
Adam M
July 16, 2017
Very good service and arrived in 2 days.RG35axc replaces the same battery after 5 yrs. of use. The old battery tests good but flying to a remote area and one less thing to worry about.Also use a Battery Tender Plus to keep it charged .Only problem is have to modify battery box cover as it wont fit the top of the battery I fly a 68 C177.
Jeffrey Q
July 10, 2017
Bought a new Concorde RG-35AXC (June 2017) to replace the one in my 1976 Cessna Cardinal 177FG (180HP). The previous battery (also a RG-35AXC) had been installed back in 2009! Any battery that last 8 years is a 5-star in my book. The new battery turns the prop over extremely fast, am very pleased with the performance and super high quality of this battery.
Michael G
June 29, 2017
Used this to replace a pink in my new-to-me plane. The pink wouldnt crank the engine, and had issued with the radios. Concord sealed batteries have always been good for me, in my planes and the planes I work on. Worth the price difference in just not having to carry the jumper cables!
Cris A
May 22, 2017
Bought this battery based on fedback from various forums and other sources. Only time will tell if it is deserved or not. I have a relatively good experience with a previous flooded Concorde battery which I got 6 years of use. Shipping was fast and efficient. My experiences with Aircraft Spruce have been good. I use them often.
Steven F
April 23, 2017
Great battery. We replaced it with an identical make and model. We got 5 years and 378 Flight hours out of the last battery and I was very happy with its performance and reliability.
John P
March 30, 2017
Did what it advertised, was delivered promptly and well packed, fits fine and starts the aircraft nicely. Lets talk in 3 years since thats the real test.
Jeff G
March 27, 2017
There may be others less expensive but none are as powerful and efficient as the Concorde RG-35AXC
James M
March 6, 2017
Excellent battery. With periodic maintenance it lasted seven years in my 180 in the high heat of Texas. I hope to get seven years out of my new one.
Dennis S
March 4, 2017
Fantastic product! Just bought my Second Concorde AGM battery from Aircraft Spruce, I have used them in two aircraft that i owned. I have changed them out after 8 years. They had not failed yet, but did have diminished capacity and were abused with the wrong chargers.
Ed G
February 25, 2017
You can not beat a sealed Concorde Battery with extra cranking. Ive had them go 5 years for me.
Bob
February 16, 2017
Best batteries ever made. If you are bored and like to clean battery boxes or pull your battery out every week to charge, dont buy this battery, look to Gill.
Mark
September 3, 2016
This battery was in my plane when I bought it five years ago. I dont have it on a trickle charger, nor do I know what the optimum voltage my generator should be feeding it is, much less what its getting. Still, its never left me stranded, and the battery box looks brand new. Im only replacing it now for my own peace of mind. I used Gils in my previous plane. I was lucky to get two years out of them, and I was constantly cleaning out the battery box.
Zerofivewhiskey
February 15, 2016
Finally a sealed battery that works and does not seem to fail after a year or two like the old ones did.
I run a maintenance shop and have been switching customers over as needed to this battery. Some planes tend to boil batteries over causing severe damage to the belly and structures. This battery not only works well, has a very low self discharge rate and, extra capacity, it does not boil over.
So far, well worth the extra money over the standard batteries.
Will B
July 14, 2015
Have given zero problems in 5 1/2 years, first thing I bought for my Bonanza and going strong
Herschel S
May 11, 2015
This is the best battery ever created.!!!
Pick F
April 14, 2015
I am just now replacing the one I put in 11 years ago in my Twin Comanche. The pink batteries I used to used lasted 3 years maximum. Pretty much explains why I like it. I especially appreciate the fact that these batteries completely eliminate the need for battery box maintenance. No more cleanout. No more baking soda. No more messy battery box paint.
George
March 19, 2015
Just received and installed in my light twin. I have been plagued with hot start issues. I've installed bogart cables, sky tech starters, and alternator conversions.. Better, but performance still lacked. My Gill battery finally gave up after 2.5 years. I decided on the AXC for the few extra cold crank amps, I do not regret the extra $30. I am finally satisfied with the starting performance.
Andrew P
February 14, 2015
Bought one in 2006 and now 8 years later it is beginning to show signs of weakness. It has never left me stranded and I keep it on a trickle charger when in the hangar. A great product. I'm buying another one.
Dale V
December 16, 2014
Wonderful battery. Combined with the correct BatteryMinder charger/maintainer I have gotten five years out of this battery and it still passes the ICA. The cost is comparable to a flooded battery, plus free shipping. I put an EI VA-1 volt/ammeter and Zeftronics ACU with OV and ground fault protection in the plane and set the VR for summer and winter voltages per the owner's manual. So far so good.
Redbird82
October 2, 2014
Wonderful battery that has never let me down. Never, and my first one was badly abused charging with car chargers and depleted to below end voltage on a long flight with a dead alternator. That battery still lasted five years before a cell died. It still started the engine just fine, but it would not pass a capacity test. Nine years later it is still good enough to run the 2000 lb hangar winch once in a while.
Along the way I set the ship's alternator to the owner's manual recommendations for summer and winter voltages (14.2 - 14.4v for my average temp). It is also babied because I use the VDC BatteryMinder 12248-AA-S1 and now the -S5 charger/maintainer continuously when the plane isn't flying. I also have a solar charger from VDC for when its parked on the ramp somewhere. The thought isn't to save money: It's to have a reliable battery.
The second battery is just turning four years old and still passing the Concorde capacity test. It has been babied more than the first so I expect it will last longer than the first, which beat the competition by about 2x at a similar cost.
A word of warning: AGM/RG batteries do not tolerate abuse as well as flooded. Boil a flooded and you can refill it. Boil an AGM and it's toast. Ditto undercharging. To get max life you have to be a bit anal.
Tom C
December 23, 2012
So far so good! Seems to be a good strong battery. Time will tell. Replaced a conventional Gil. Note the size is a tight squeeze into my battery holder. Height was about an inch higher, so required longer hold down bolts.
Stearman
February 19, 2021
I really like Concorde batteries, although I donât seem to get really long life from them. Iâm averaging about 2 years.
John W
November 2, 2020
This is my 4th or 5th Concorde 35 AXC. Most last 4-6 years. One failed prematurely in flight.
Don R
October 21, 2020
Prompt service. It works as advertised. Expensive.
Peter S
July 1, 2020
Had trouble with ordering process but they corrected problem. Otherwise would be 5 stars. Good product, fast delivery.
Clyde D
September 26, 2019
My 3rd 35axc. First one went 5years so I replaced it and itâs still going strong on my Polaris Ranger. 2nd one failed at three years. Disappointing but it happens. I have high hopes #3 will be a 5year battery.
Jerry D
July 25, 2019
I have a C182 and it started this engine very well. For the money you would think it would last longer that 2 years, but it worked well til it died.
Mr. L
December 31, 2018
Great battery, but only lasted 3 years in my Bonanza. We have a nearly new Plane Power alternator STC, carefully set to charge at 14V
Steve Z
July 2, 2017
This battery does not fit in my 1973P Cessna 182, the battery box lid will not close properly.
Paul O
March 4, 2021
My Concorde RG-35AXC died after 4.5 years. Im a little disappointed about that, given its price point compared to the competition and the reputation of the company and its products. Nevertheless, Ive ordered the same replacement battery as its still the best battery for my airplane.
Dave
October 14, 2020
The shipment was in a box of no indication of this side up I was placed on my porch with the battery upside down. Fortunately, it was well packed and the battery is sealed. It is working well. Suggest this type of shipping be marked woth a this side up or equivalent.
Robert J
July 10, 2020
Dont ever fly with this battery in a discharged state. It will play havoc with your electrical system. I lost my ammeter - smoked it before popping the 60 amp breaker.
Make sure this battery is fully charged and keep it that way. These things dont function like your typical auto battery that seem to tolerate such conditions.
Dan M
December 27, 2018
I wish my experience was the same as many here. I purchased this battery from Aircraft Spruce 10/4/17. Now (7/11/19), approximately 20 months later, its dead. Replacing with same and hoping for better results.
Michel M
July 11, 2019
This is a replacement for the same battery that only lasted one year and less than 30 hours of tach time. It would not hold a full charge and had a bad cell on one end that gets warm when charging. Currently waiting on a warranty claim.
David U
March 16, 2019
Expensive and only lasted 3 years then completely kaput. It has been on the same battery minder my previous battery was on. The Gill lasted twice as long.
Richard G
November 20, 2016
Nowhere near as good as the last one. Never had the cranking power and would go dead if sitting for a couple of months.
Kevin T
October 19, 2020
Battery failed in 20 months 100 cycles. Correct battery minder in use, no unusual environmental conditions (Virginia) or equipment (Cessna 180). Concorde advised that credit under warranty would be $50 +/- for a $340 battery. They sent me to Aircraft Spruce as distributor, who has a warranty card on line with no mailing instructions so I have to wait for someone to call me back with mailing instructions! This isnt my first rodeo. Been flying 50+ years and owned all or part of seven airplanes over than time.
W.t. M
June 24, 2019