Optimate Solar Battery Charger/Maintainer for EarthX Batteries TM-522-D4

Add to Wishlist
Part# 11-19227
MFR Model# TM-522-D4


The Optimate TM-522-D4 Lithium solar charger will charge and maintain your lithium battery with 3 amps / 40W of energy.


  • Fastest charge is delivered as ‘smart charge’ control selects pulse or continuous charge according to sunlight strength.
  • Intelligent maintenance continues the next day if battery retained charge overnight, otherwise the program reverts to OPTIMIZE step.
  • Battery condition is displayed every 3 seconds. Ready indication for STD, hi-performance AGM and lithium LFP batteries. Draws less than 0.5mA during monitor mode.
  • Automatically switches to CHARGE when solar power is sufficient.
  • The OptiMate charger-monitor controller is separate to the solar panel and can be placed close to the vehicle or battery so that charge and maintenance progress can be easily followed. The solar panel must be mounted and angled to receive direct sunlight. The reach / distance between battery and panel is 315cm / 124″.
  • Specifications

    16.6”W x 27”H x 1.25“D
    Weight of panel: 6.8lbs
    Solar Panel:
  • Power : 40 Watts (max.)
  • Volts: 12V / 12.8V
  • Use: Outdoor.
  • Style: Weatherproof – polycrystalline, aluminum frame with 4 x mounting brackets, output cable 200cm / 80″ with SAE connector.
  • In The Box

    • 1 x TM-522-D4 solar charger/maintainer
    • 1 x battery alligator clips
    • 1 x waterproof quick connect lead
    • 1 x solar duo controller



    Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.