4 x Tenergy RCR123A (16340) 3.7 Volt Lithium Ion Batteries (650 mAh) + 2 Bay Powerizer Smart Charger - Mega Batteries
CR123 Rechargeable Batteries and Charger for Pulsar and Infrared Torch
Amazon.com: Lankoo USB CR123A Lithium ion Rechargeable Battery, High Capacity 3.7V 700mAh Rechargeable CR123A Battery, 1.5 H Fast Charge, 1200 Cycle with Type C Port Cable, Constant Output,4-Pack