Lithium Battery Specifications BB - CS December 15, 2017 16:57 Follow TC1200 – 18650, 3.7V, 2200mAh with Protective Circuit Technology. TC800 - 14500 3.7c, 900mAh Related articles Submit a Request I don't understand the amount I was charged for my Flashlights. How do I unsubscribe/remove myself from your email list? What size battery does each flashlight take if you don't purchase the Kit upgrade? How long does it take to fully charge a depleted battery? Comments 0 comments Article is closed for comments.