This 24V, 10Ah NiMH battery pack consists of 20 D size NiMH 10,000 mAh cells with charging/discharging terminals. It is ideal for replacing lead acid batteries for electric bikes and scooters, has less weight, and more power in addition to being environmentally friendly. A thermostat cutoff is assembled in the battery pack just in case the temperature of the pack exceeds 70 degrees Celsius, causing whatever device it is powering on to shut off safely.