UN38.3 MSDS 18650A+ 2S 7.4V Lithium-ion Battery pack LiPol Battery Co., Ltd presents the 18650A+ 2S 7.4V Lithium-ion Battery pack, This Lithium ion Battery Pack size is 19mm Thickness* 37mm Width* 68mm Length, a UN38.3 and MSDS certified power solution designed for...