Yes, there are four:
1. Lithium-ion batteries - As the popularity of electric vehicles began to rise, EV manufacturers realised lithium ion’s potential as an energy storage solution. They quickly became one of the most widely used solar battery banks.
2. Lead acid batteries - These deep-cycle batteries have been used to store energy for a long time - since the 1800's, in fact. And they’ve been able to stick around because of their reliability.
3. Nickel based batteries - Ni-Cd batteries first sprung on the scene in the late 1800's, but they got a makeover in the 1980s that greatly increased how much energy they could store. They are a favourite amongst the aircraft industry.
4. Flow batteries - They contain a water-based electrolyte liquid that flows between two separate chambers, or tanks, within the battery. When charged, chemical reactions occur which allow the energy to be stored and subsequently discharged. These batteries are now beginning to rise in popularity. Their larger size makes them more expensive than the other battery types. The high price, combined with the large size, makes it hard to adapt them to residential use. However, there is an option in the market.
Nectr offers a choice of 2 Lithium-ion batteries as they require almost no regular maintenance. They also have a higher battery energy density, meaning they can hold more energy in a smaller space than other types. Lithium-ion batteries have a longer life span as well as offer a 10-year warranty. This longer lifespan has to do with lithium-ion batteries having a higher depth of discharge, so you can use more of the energy stored within the battery before it has to be recharged. View our Home Battery AddOn product.