ultrafire 18650 li-ion battery 4200mah 3.7v for strong light flashlight electronic products

item: ultrafire 18650 4200mah li-ion battery rated voltage: 3.7v charge voltage:4.2v size: 65mm (length) x 18mm (diameter) rechargeable times: over 1000 times no memory effect weight:37g scope of application: notebook computer battery led flashlight electric tools other electronic products product features: 100% brand new good quality and durable safe and environment-friendly. overcharge and discharge protection. ing