... 5-7days afer confirm order 3S3P 12V 6600mAh ev li-ion battery pack for solar panel Specificationli- ... a long time(>3 months) and the storage condition shall be:<35°C;65±20%RH ... High energy density2, High working voltage for single battery cells3, Pollution-free4, Long cycle life5, No ... discharge10, Light weight, small sizeFeatures:1, Longer storage life than NiMH Batteries2, Light weight and higher ...