Lifepo4 battery Lifepo4 cell model Lfp battery Lithium ion phasphate battery Lifepo4 emergency lighting battery Lifepo4 is the safest lithium battery technology comparing with cobalt, manganese and li(nicomn)o2. Lifepo4 battery has very high charge and discharge efficiency at high temperature, highest working temperature could be up to 55 degree and 70 degree. It has very good cycle life of more than 2000 cycles. Expected service life could be more than 10 years.