Best Power FE 4.3KVA BAT-0065 12V 36Ah UPS Replacement LITHIUM LiFePO4 Battery

So why wait?. (12V 36Ah). LiFePO4 LITHIUM IRON PHOSPHATE BATTERY. To be even more cost-effective, LiFePO4 batteries are among the longest lived batteries ever developed. Ultra Light High Performance.

eBay