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Overview :
UltraFire 18650 3000mAh Protected Lithium Rechargeable Battery provides the power, efficiency and value for all of your portable power needs. With high quality product , it uses the latest advanced technology to provide longer run times and faster charge times.

Specifications:

Model: UltraFire 18650 with protected
Capacity: 3000mAh  
Voltage: 3.7V
Dimension: 18.25 x 670 x 67mm/0.7 x 26.3 x 2.6in (Dia. X H X L)
Li-ion lithium battery
Can be used in laser pointer. Torch and other electronic products
Safe and environmental friendly
Life time is about 10 years. Over charge and discharge protection