Amazon.com: Two Olight 550mAh 16C05-10C Rechargeable Battery for Olight S1R II (1000 lumens Version), Perun Mini or Baton3 Flashlight and a LumenTac Organizer : Health & Household
Olight RCR123A Lithium-Ion Rechargeable Battery
US NK422-1x Olight RCR123A special for S1RII 550mAh 3.7V Rechargeable battery 1 for sale online | eBay