... 2,Long lifespan 3.High discharge rate capacity 18650 li-ion battery 2200mah3.7vAdvantages:1, High energy density2, High ... good7, With short-circuit production function, safe and reliable8, Factory price& High quality9, Good consistency, low self discharge10, ... battery pack with plastic shell and assembly procession for customized configurations is available (we could design and develop Li-ion battery ...