Philips SL2624 12V 36Ah Medical Replacement LITHIUM PHOSPHATE LiFePO4 Battery
It is designed to work with high and low drain devices as well as solar/wind devices. (12V 36Ah). LiFePO4 LITHIUM IRON PHOSPHATE BATTERY. To be even more cost-effective, LiFePO4 batteries are among the longest lived batteries ever developed.