Product information "IAB1201-8 IC60Comp.,batt.12V/1.8Ah NiMh"
The battery pack consists of rechargeable nickel metal hydride batteries. This battery pack is used as an internal back-up battery
for the IC60 compact panels. Attention: This battery type is self discharging after 6 months. Periodic charging is needed on stock,
otherwise the battery might be damaged!