Type: 2.4 V40mAh (2.4 V40H)
Size: 12.0 (diameter) * 12.0 (high) mm
Voltage: 2.4 V
Capacity: 40 mah
Type: NI - MH nimh batteries
Other: positive negative point feet welding tablet
Advantages: good seal performance, and long storage time, discharge voltage stationary

Price of factory direct sales, but long-term, large supply of!