Trustfire (18650) 3400mAh USB Rechargeable Lithium Li ion battery

18650 USB Rechargeable Lithium Li ion battery (button top) It has no memory effect Supports up to 1000 recharges Protection against short-circuit and overload Capacity 3400mAh 3.7V Li-ion 70 x 18.5mm (length x diameter) 60 grams (pcs) Comes with micro USB Charging methods: micro USB or normal battery charger Micro USB input: 5V Micro USB comes with charging indicator red and green LEDS Micro USB charging time: 6 hours Packing: each battery in blister.  ***Price Per Battery*** *** WARNING *** All users must have appropriate understanding of lithium-ion batteries before purchase. Use caution when working with and using lithium-ion batteries as they are very sensitive to charging characteristics and may explode, burn, or cause a fire if misused or mishandled. Always charge in or on a fire-proof surface. Never leave batteries charging unattended. Buyer is responsible for any damage or injury caused by misuse or mishandling lithium-ion batteries and chargers. No express or implied guarantee of compatibility with any device can be made. Charge only with a smart charger designed for this specific type of lithium-ion battery. Do not mix and match old and new, used and unused batteries. DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE MISUSING OR MISHANDLING LITHIUM-ION BATTERIES CAN POSE A SERIOUS RISK OF PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED ONLY USE WITH PROPER CIRCUITRY IN A PROTECTED BATTERY PACK ONLY USE WITHIN MANUFACTURER LISTED SPECIFICATIONS DO NOT STORE LOOSE BATTERY IN A POCKET, PURSE ETC. - ALWAYS USE A PROTECTIVE CASE OR BOX KEEP AWAY from metal objects to prevent short circuiting DO NOT short circuit DO NOT use if wrapper or insulator is damaged or torn DO NOT use if damaged in any way DO NOT overcharge or over-discharge DO NOT modify, disassemble, puncture, cut, crush, or incinerate DO NOT expose to liquids or high temperatures DO NOT solder, spot weld only User must be familiar with handling lithium-ion batteries before purchase Usage of batteries is AT YOUR OWN RISK ALWAYS charge in or on a fire-proof surface and never leave charging batteries unattended