Freedom-Won Lite 15/11 LiFePO4 Home
The typical energy efficiency (energy that can be taken out of the battery compared to energy required to re-charge) for lead acid batteries is ~ 70%. For a LifePO4 battery it is ~ 92% The final 20% charge for a lead-acid battery is particularly inefficient with efficiencies of ~ 50% and can take a very long time for the battery to become completely charged. In contrast a LifePO4 battery can still achieve 92% efficiency and so can be fully charged more quickly and using less energy.
Size & Weight
LifePO4 batteries save up to 70% in space and 70% in weight compared to lead-acid.
The expected life in off grid systems is more than 10 years, and as much as 20 years in grid tied back up installations with occasional cycling.15 years (5000 cycles) expected life at 70% DoD (1), 20 years (7000 cycles) at 50% DoD
10 years (or 3500 cycles) warranty for average 70% DoD, and max 90% DoD.