With improvements in battery technology, LiFeYPO4 batteries now offer more than 5000 cycles at more than 80% DoD (Depth of Discharge). This means you can now acquire a battery that you can charge and discharge daily for more than 10 years without replacement.
LiFeYPO4 batteries are resilient to temperatures in excess of 35 degrees Centirgratde which has an adverse affect on lead acid batteries with an energy density of more than 3 times that of a lead acid battery, saving you space in a lighter package.
Compared to Lead acid batteries, the round trip efficiency for energy in and out of the battery is much better. At a mere 4% loss, there is often more efficiency losses due to DC wiring than in the battery itself. Compare this to 20%- 30% internal loss in lead acid, this required less fuel and smaller solar solutions to service the battery.
LiFeYPO4 batteries have passed extensive safety tests without failure and is now considered the safest Li-Ion technology available.