Lithium-Ion Batteries are the most common for residential and commercial solar storage due to their efficiency and lifespan. Known for fast charging and deep discharge capabilities, they are ideal for daily cycling.

Efficiency: 90-95%.

Lifespan: 10-15 Years

Lead-acid batteries are the traditional solar storage option with a lower upfront cost. These batteries are best suited for off-grid systems or backup power because they can deliver a large burst of power quickly. They have been used for decades in solar storage systems, making them a trusted for off-grid setups. Although they typically require more frequent maintenance and have a shorter lifespan.

Efficiency: 70-85%.

Lifespan: 5-10 Years 

Flow batteries are ideal for long-duration storage and large-scale applications, making them a good option for commercial solar installations. They also have a longer lifespan and can handle more cycles without degrading

Efficiency: 70-85%.

Lifespan: 20+ Years

Salt water batteries are the eco-friendly alternative to lithium and lead-acid batteries. These batteries are highly stable and less prone to overheating and causing fires. They require minimal maintenance and have no risk of leaking harmful chemicals. They are not as widely used because they are still emerging in the market but do show promising signs as a durable sustainable option.

Efficiency: 70-80%.

Lifespan: 10-15 Years

Nickel iron batteries are known for extreme durability and long lifespan. They can withstand frequent deep discharges without significant capacity loss unlike lithium ion and lead acid batteries. Although they do require regular electrolyte refills, their durability leads to lower long-term costs.

Efficiency: 60-70%.

Lifespan: 30-50 Years