Streamlight SL-B26 Battery Pack for the Stinger 2020Two SL-B26 Protected Li-Ion Battery Packs with USB PortsThe new Streamlight Stinger 2020 Flashlight is powered by its SL-B26 Battery Pack to ensure a powerful performance. The two packs are protected lithium ion batteries with a 2600mAh capacity, on-board safety control circuits, and built-in USB charging ports. These batteries can be recharged up to 500 times, saving you time and money. The SL-B26 battery pack can be charged within the flashlight with Streamlight Stinger smart chargers and bank chargers, taken out and charged with a battery bank charger, or the packs can be directly charged with the USB ports.Features: Powers the Streamlight Stinger 2020 Rechargeable Flashlight Contains 2 x li-ion battery packs High 2600mAh capacity for superior performance Batteries are protected with on-board safety circuits Batteries have built-in USB ports for charging convenience Multiple charging options - Stinger Smart Charger and Bank Charger, External Battery Bank Charger, or USB cord Can be recharged up to 500 times Stinger smart charger with 5V/1A USB input can fully recharge pack in 8 hours Stinger smart charger with 12V DC input can fully recharge pack in 6 hours Note: Smart Chargers and charging cords are sold separately.