12.8v lithium battery is new environmentally friendly solar system focus on short-time and high-rate discharge scenarios. the environmentally friendly lithium ion battery configured with high-performance bms, has a wide range of performance and application advantages compared with conventional battery. this lithium iron phosphate batteries the superior high temperature and storage performance make lifepo4 the most suitable one for 12.8v li-ion battery positive material. it is high integrated with less installation space. long life cycle, >3000 times at 80% dod. it without heavy metals and environment friendly. maintenance there is no memory effect. internal bms with full protection,battery has high voltage protection with higher reliability..syi