... afer confirm order 3S3P 12V 6600mAh ev li-ion battery pack for solar panel Specificationli-ion batteryTypeLithium-ion rechargeable ... demandAdvantages:1, High energy density2, High working voltage for single battery cells3, Pollution-free4, Long cycle life5, No memory effect6 ... , Supply which requires compact size and lighter weight7, The battery module is wrap by PVCOthers:1, OEM orders are available2, ...