Original Battery for Streamlight flashlight -- Flashlight Type: 22104 SL-B26 and so on. Design: The top of the battery has a USB port that can be used for charging. Red flashing indicates the battery is charging, blue flashing indicates charging is complete. Safe To Use: Battery loading and unloading is very convenient, just put the battery into the flashlight, turn on the switch button, and you can use it. Compatible with Streamlight 22104, Streamlight flashlights Security Protection: Comes with built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuit. Charge status indicator.

Rechargeable 3.7V Battery Compatible for Streamlight SL-B26 22104, Streamlight X Series Flashlights (6 Count)

· Original Battery for Streamlight flashlight -- Flashlight Type: 22104 SL-B26 and so on.

· Design: The top of the battery has a USB port that can be used for charging. Red flashing indicates the battery is charging, blue flashing indicates charging is complete.

· Safe To Use: Battery loading and unloading is very convenient, just put the battery into the flashlight, turn on the switch button, and you can use it.

· Compatible with Streamlight 22104, Streamlight flashlights 

· Security Protection: Comes with built-in over-charge, over-discharge, over-voltage, over-current, and over-heating protection circuit. Charge status indicator.