Does a home battery need servicing?
1 min read · Updated 15 October 2026
The short answer
Not as often as a heat pump, but a yearly check is worthwhile. Firmware, cell balance and connections are the things to look at.
What a check covers
State of health, cell balance, charge and discharge behaviour, BMS warnings, firmware version and cabling.
Where it lives matters
Batteries prefer a stable temperature and clear ventilation. A cold garage or a cupboard full of boxes shortens their life.
What you can watch
Your app's charge and discharge pattern. A battery that stops cycling normally is telling you something.
Want someone else to look after it?
Annual service, monitoring and repairs, any make.