- Rechargeable LiFePO4 17340/CR123A 3.0V 350mAh Battery <br />- Life cycle: 2000 times (Traditional Li-ion: 500 times) <br />- Never explode or catch fire <br />- 100% Compatible with Disposable 17340/CR123A Batteries<br />- Working Voltage:3.2V and Peak Voltage: 3.6V<br />- Charging cut-off voltage: 3.6V<br />- Discharge cut-off voltage: 2.2V<br />- Please never overdischarge battery below 2.2V/cell<br />- You can safely charge these using the Ultrafire WF-138 Chargers set to the 3.0V mode- Do not charge these with any lithium chargers for regular 3.6V batteries as they can have up to 4.2V charging voltage!<br />- Capacity: 350 mAh <br />- Rechargeable LiFePO4 17340/CR123A 3.0V 350mAh Battery <br />- Life cycle: 2000 times (Traditional Li-ion: 500 times) <br />- Never explode or catch fire <br />- 100% Compatible with Disposable 17340/CR123A Batteries<br />- Working Voltage:3.2V and Peak Voltage: 3.6V<br />- Charging cut-off voltage: 3.6V<br />- Discharge cut-off voltage: 2.2V<br />- Please never overdischarge battery below 2.2V/cell<br />- You can safely charge these using the Ultrafire WF-138 Chargers set to the 3.0V mode- Do not charge these with any lithium chargers for regular 3.6V batteries as they can have up to 4.2V charging voltage!<br />- Capacity: 350 mAh                                                                                                                                 Dimensions: 1.34 in x 0.67 in x 0.67 in<br />Weight: 0.6 oz