Li-Fe-PO4 IFR16340 Rechargeable:500mAh 3.2V

LiFePO4 is new generation Li-Ion battery  which never explodes and causes a fire because of its chemistry. LiFePO4 battery also has longer cycle life than normal Li-Ion cell

Rechargeable RCR123A 3.0V 500mAh rechargeable LiFePO4 Battery
Life cycle: 1000 times
It is perfect for most camera, and compact flash lights
Voltage:3.2V ( working ) and 3.6V ( peak)  --- Can replace CR123 primary Lithium battery exactly without extra voltage
Discharge cut-off voltage: 2.0V
Please never overdischarge battery below 2.0V/cell
Capacity: 500 mAh
Maximum discharging rate:< 500 mA
Maximum charge current: <500 mA
Cell's dimension:   17mm Dia. x 34.5mm H.    
Weight: 42g/pair