Y2K Flip2 Battery (BL-5K)
Battery Type – Li-Ion Battery
Capacity 1200 MAH/4.44WH
Voltage 3.7V
Max Charging Voltage 4.2V
Standard GB/18287-2000
 
Y2K 3G Senior Phone Battery (BL-5C)
Battery Type – Li-Ion Battery
Capacity 1020 MAH/3.7WH
Voltage 3.7V
Max Charging Voltage 4.2V
Standard GB/18287-2000
 
Y2K 3G Flip Lite Battery (BL-4C)
Battery Type – Li-Ion Battery
Capacity 890 MAH/3.2WH
Voltage 3.7V
Max Charging Voltage 4.2V
Standard GB/18287-2000