The genuine Panasonic 18650 rechargeable Lithium battery is equipped with a protection circuit board (PCB) on the negative pole. The PCB can protect the battery from overcharge、 over-discharging、 overload and short circuit、 which can make the battery safer and longer lifespan. The battery is environment friendly and perfect for super bright flash and other devices.<BR><BR>- Genuine Panasonic 18650 batteries<BR>- Capacity: 3100mAh<BR>- With protection board<BR>- Protective case included<BR>- Comes as a pair<BR><BR><br /> The genuine Panasonic 18650 rechargeable Lithium battery is equipped with a protection circuit board (PCB) on the negative pole. The PCB can protect the battery from overcharge、 over-discharging、 overload and short circuit、 which can make the battery safer and longer lifespan. The battery is environment friendly and perfect for super bright flash and other devices.<br /><br />- Genuine Panasonic 18650 batteries<br />- Capacity: 3100mAh<br />- With protection board<br />- Protective case included<br />- Comes as a pair<br /><br />                                                                                                                                Dimensions: 2.68 in x 0.71 in x 0.71 in (6.8 cm x 1.8 cm x 1.8 cm)<br />Weight: 3.32 oz (94 g)<br /><br />