BatteryJack inc. UPS Replacement Battery 12V 9Ah Panasonic UP-RW1245P1

Direct UPS replacement

This 12 V 9 Ah sealed lead-acid battery is built as a 100 % OEM replacement for the Panasonic UP-RW1245P1. It uses absorptive glass mat construction so the electrolyte is immobilised and the unit can operate in any orientation. The maintenance-free design removes the need for water topping or specific-gravity checks during its service life.

AGM chemistry constraints

Gas recombination exceeds 90 % during normal float operation, keeping internal pressure low and preventing electrolyte loss. The sealed case is classified non-spillable and meets IATA transport requirements, but the chemistry still limits usable capacity at high discharge rates and in deep-cycle applications. Expected float life spans four to seven years depending on temperature and charge regimen.

Sealed case and terminals

Leak-proof sealing allows horizontal or vertical mounting inside rack trays or cabinet shelves without acid risk. Standard F2 faston terminals match the original connector layout for tool-free swap-out. The three-year warranty on UPS devices reflects the manufacturer’s confidence in the build quality for continuous backup duty.