Streamlight 78105 Stinger 2020 Battery Pack Black/Silver 3.7 Volts 2,600 mAh (2) Single Pack

Batteries for the new Stinger 2020, SL-B26 Battery Pack Li-Ion USB, batteries have built-in USB ports for charging. Batteries can be recharged with Stinger Smart Charger, Bank Charger, External Battery Bank Charger or USB cord and charged up to 500 times.