The Streamlight 18650 Rechargeable SL-B26 Battery has a built-in Micro-USB port that allows the user to recharge the battery. The charger prevents overcharging and over-discharge.
Battery Type: 18650 (SL-B26) Rechargeable Lithium Ion
Capacity: 2600mAh
Batteries per Pack: 2
Battery Type: 18650 (SL-B26) Rechargeable Lithium Ion
Capacity: 2600mAh
Batteries per Pack: 2