The first, and perhaps most obvious, factor is the total capacity of the battery. It makes sense to assume that the biggest is best but this is not always the case. Your budget and the size of your solar power system will often determine the ideal solar battery for your home or business. It’s worth keeping in mind that not all of the batteries’ total capacity can be used as fully depleting a battery can damage it.
Lifespan is another factor when considering what solar battery to go with. A solar battery’s lifespan is measured in cycles, that is how many times it can be charged and discharged. If you have ever used rechargeable batteries you may have noticed them not holding as much charge after a long time of use. Manufacturers will list this stat and batteries can have warranties based around this.
Speaking of warranties, make sure the battery you go with has a decent one. Industry standard for warranties on solar batteries is 10 years. Anything less than this should be a major concern and worth investigating. There are other things to consider when looking at the warranty such as whether the support is offered within Australia and if there are any fine print restrictions that may void it.
We have already written an article about what you should know before buying a solar battery which you can view here. This article also includes a handy glossary of the most commonly used terms when talking about solar batteries. We recommend heading over and taking a look if you are considering purchasing a solar battery.