Two Olight 550mAh 163C05-10C Rechargeable Battery for Olight S1R II -1000 lumens Version- Flashlight and a LumenTac Organizer

The Olight batteries provide high-performance power and can be recharged up to 500 times, saving you money in the long run. Each battery comes equipped with a built-in circuit protection board and triple over-heat protection so your expensive device is safe from shorts. These batteries are also protected from over-discharging too! Specifications: * Battery Capacity: 550 mAh * Voltage: 3.7 V * Rechargeable Battery Type: Custom Designed for Olight S1R II (1000 lumens) * Brightness & Runtimes: * Dimensions: L-1.35"xW-0.66"xH-0.66" * Weight: 0.6oz Compatible flashlight model ** This is a customized battery. It works and only works in Olight S1R II (1000 lumens) flashlight. ** This battery does NOT work for the Olight S1R I (900 lumens). If your light does not show S1R "II", it won't work. ** This battery does NOT work in any other flashlight or devices. ** This battery can only be charged inside the S1R II light using the Olight magnetic charger. Do NOT charge it with any external charger. What one should NOT do: Do NOT attempt to modify the battery if it does not work in your flashlight. This is a customized battery for the S1R II model only.