4 Pack PPOWER 18650 3.7V 2300mAh lithium-ion rechargeable batteries + 2X battery boxes+ PPOWER charger + HeadLamp Battery: Pack of 4 2300mAh 18650 Lithium-ion rechargeable batteries/PPOWER batteries can be recharged up to 1200 times when fully or partially drained which makes it extremely economical, and provides an expected life similar to that of the device in which it is used. Besides, improved low self-discharge makes it maintain 75% of capacity after 3 year of non-use. When your rechargeable batteries are out of power, you need a battery charger, and this PPOWER battery charger is a very good choice for you, and it can charge 2 pcs of 18650 Lithium batteries. What's more, the charger uses the MCU control technology, providing the constant current and constant voltage safety model. Indicator light will turn into green once the battery voltage reaches 4.1V-4.2V. ;Come with 2 pack free battery storage cases. Adjustable Focus : Zoom In/Out to change focus. Bulb: CREE XM-L T6 LED. Max output: 2200 lumens and the Powered by: 2x18650 3.7v 2300mAh Battery,Come with AC Charger and DC Car Charger.