Usage notes: Our lifepo4 battery module, with nominal voltage of 12v and capacity of 100ah is assembled with high power lifepo4 cells. It can be used individually and can be connected in serial or parallel to achieve given voltage and capacity. Features: A. Extremely safe and stable chemistry: pcm and/or bms built inside to balance protect the battery. B. Long life-cycle: can be circularly used, best can up to 2000 times recycles, 8 times of lead acid battery. C. Lighter weight, with the best power-to-weight ratio: 1/3 of lead acid battery weight. D. Good performance at high temperature and high temperature resistance E. Low self-discharge rate, less than 3% monthly. F. No memory effects and highly efficient charge. G.Environment friendly: clean and green energy poses no pollution on our environment.