APC by Schneider Electric Smart-UPS SRT 72V 2.2kVA Battery Pack - Lead Acid - Leak Proof/Maintenance-free - Hot Pluggable - 3 Year Minimum Battery Life - 5 Year Maximum Battery Life
Features
It can be chained with multiple battery packs for extended run operation
Leak proof design makes it the perfect power source for your critical devices and is safe to use compared to other lead-acid batteries
In terms of cost per watt hours, it is an inexpensive choice providing efficient power