Polinovel lithium ion lifepo4 battery� is designed & developed to outperform traditional lead acid batteries by offering more usable & reliable power with much less weight and truly free of maintenance. Compared with traditional lead-acid battery, lithium battery has overwhelming advantages in cycle life, charging & discharging, and more tolerance in high temperature. They are smarter and safer with BMS (Battery Management System) to protect the battery from over charging, over discharging, over current, short circuit and over temperature. Our Lithium Ion Battery Features �· Adopts patented 32650 cylindrical LiFePO4 cells �· â??BMS + Safe Boardâ?? dual protections provide safe power �· Screw fastening structure increased battery durability �· Market proven outstanding performance in harsh environment �· Support maximum 4pcs connection in series or parallel to expend energy �· Trustworthy innovative lithium battery manufacturer Premium LiFePO4 Cells�  The battery adopts patented 32650 cylindrical LiFePO4 cells produced by the top 5 lithium battery manufacturers in China. Intelligent BMS�  Each LiFePO4 battery includes intelligent� BMS inside to guarantee the battery safety. Allows� up to� 4pcs in series or parallel connection to� expand the capacity. Durable Structure Individual cells are connected to� high� strength PCB and the� screw fastening� structure� offers increased durability. Lithium Battery Specification HD12100 Model HD12100 Nominal Voltage 12.8V Nominal Capacity 100Ah Energy 1280Wh Connection max. 4pcs in series or parallel Standard Charge Volt 14.6V Discharge Cut-off Volt 10.0V Standard Charge Current 5A-50A Max. Charge Current 100A Const. Discharge Current 100A / 160A Peak Discharge Current 200A (