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Choosing the right Battery

Each Batteries have their uses, for off-grid use you may have specific needs and may require different types of batteries, here is an comparison of the different types on batteries we have suited for off-grid use and standalone systems.

Lithium Batteries

Lithium-ion batteries are a newer form of battery storage, lithium-ion batteries can be discharged deeper and have generally longer lifespan compared to lead-acid batteries, of around 13-18 years. Lithium ion solar batteries have higher energy density so it can store more power relative to its size, they also do not require as much maintenance as lead acid batteries. Lithium-ion batteries have a 80% depth of discharge and 95% battery efficiency. Average warranty period Is 10 years.

Lead-Acid Batteries

Commonly used in vehicles, lighting, UPS systems, and energy storage applications. Containing a mix of lead dioxide, sulphuric acid and water. This creates a chemical reaction which can store and output electricity. Known for their reliability, Lead acid type batteries have a proven track record of several decades, with relatively lower costs than other batteries, they also take up a lot of space and may emit hydrogen gas. Lead acid batteries have a depth of discharge of 15-30% and 80-85% battery efficiency. They generally have a lifespan of just under 5 years.

Gel Batteries

Gel Batteries are valve regulated lead-acid (VRLA) batteries that do not release gas. Gel batteries keep the electrolyte suspended in a gel rather than a fiberglass matt. They are sealed, maintenance-free, with a 20-40% depth of charge and 80% battery efficiency. Have a lifespan of up to 12 years, they are a viable option for the budget minded for their reliability and low cost.

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