Lithium

Lithium batteries are a type of rechargeable battery that uses a lithium compound as the active material. They are newer than lead acid batteries and offer a number of advantages.
The advantages of using lead acid batteries with solar panels include:

• Lifespan: 4000 – 6000 cycles or 10 to 15 years.
• Greater efficiency: they lose less energy during charging and discharging.
• Higher energy density: They can store more energy in a smaller space.
• Greater safety: they do not contain lead or sulfuric acid.