Lead-acid batteries typically cost £2,000-£4,500, depending on their capacity. This is around half the price of a lithium-ion battery of the same capacity.
What are lead acid batteries for solar energy storage?
Lead acid batteries for solar energy storage are called “deep cycle batteries.” Different types of lead acid batteries include flooded lead acid, which require regular maintenance, and sealed lead acid, which don't require maintenance but cost more.
What is a lead acid battery?
A lead acid battery is a kind of rechargeable battery that stores electrical energy by using chemical reactions between lead, water, and sulfuric acid. The technology behind these batteries is over 160 years old, but the reason they're still so popular is because they're robust, reliable, and cheap to make and use.
Probably not. Lead acid batteries can be somewhat more affordable than newer lithium-based technology, but they are almost certainly more difficult to use and maintain and require more hands-on work and knowledge to get working.
What are the different types of lead acid batteries?
Different types of lead acid batteries include flooded lead acid, which require regular maintenance, and sealed lead acid, which don't require maintenance but cost more. Lead acid batteries are proven energy storage technology, but they're relatively big and heavy for how much energy they can store.
Typically, a higher discharge rate and longer life span will result in higher prices. A lithium-ion battery can cost £3,500 to £6,000 depending on its usable capacity (kWh). On the other hand, lead-acid batteries can only discharge 50% of the total amount of storage which means that they are available at comparatively cheaper prices.
In order for lead acid batteries to work for long periods of time, they must be discharged no more than half of their total battery capacity on a regular basis. Automotive batteries are not well-suited for storing energy for home use because they are designed to give short bursts of electricity that are used to start a car.