My UPS (APC) has faulty batteries (again). 3 years old, already fried. I don’t mind the poor capacity of the PbAc batteries but this life cycle is horrible (2-3y tops).
Can I replace them with equivalent LiFe batteries like the ones you find on Amazon and such with the same form factor?
Or are there LiFePo4 UPS available in Europe?


I’ve looked into this a bit but not deeply and add to the chorus of no. The voltage isn’t right and the charge controller doesn’t charger properly and it’ll detect charge levels incorrectly - its not like a car where it’s fed a fairly constant 12-14V that can be handled by a BMS and integrated charge controller.