Rechargeable lead acid battery 12V 12Ah Characteristics Rated voltage: 12V Rated capacity @ 20Hr: 12Ah Rated voltage 12 V Buffer charging voltage 13.8 V/ Cyclic 14.5 V at 20°C Voltage 12V – Capacity 12Ah Dimensions Width: approx. 15cm Height: approx. 10.5cm Depth: approx. 10cm