The OptiMate TM-471 Maintainer/Charger is weatherproof, lightweight and fully automatic. Though a lower amp charger, it is the most cost-effective solution for long term maintenance of 12V lithium batteries in any vehicle stored in or outdoors.
Charge, Test and Maintain 12V Lithium Batteries
Ideal for LiFePO4 (LFP) 4s 12.8/13.2V batteries from 2 to 30Ah
0.8 Amps of charge current