Two Solar Power Batteries next to a White Wall

Your Guide to Solar Power Batteries

The batteries used within a solar power system are just as important as the panels and other parts, considering they help us to store the energy for when we need it most. Without a battery attached your solar system will need to feed directly into another source, so it’s essential for off the grid applications.

Finding the right size battery can be difficult, though, with each of us having unique requirements for our power. Depending on where and how you want to use your stored solar energy, there’s likely to be a size and style of battery that suits you best.

Basic Solar Battery on a White Background

For larger applications when you want to keep your stored energy at home for your own use, the latest revolution of battery storage options continues to impress. These larger scale batteries mean you can power up your home during the day and keep the stored energy for use at night, so you can live completely off the grid.

Solar Battery Technology

Solar batteries are a crucial part of the solar panel system and without them, the energy would have nowhere to be stored making it virtually useless. These batteries have been designed for a specific charge and discharge level, and the more capable your battery is the greater power it can store.

When the sunlight hits a solar panel, it must then take this energy and convert it somewhere. If you’re using a battery connected to the panels, the inverter will store the energy there until it’s ready for use. Otherwise, you’ll need to have the panels directly connected to your solar panel device.

Solar Battery Connected to a Solar Panel on a White Background

Solar battery types differ depending on their application, and there are sizes and styles to suit generators, small USB chargers, home battery storage systems, and more. Depending on how you plan on using your stored energy, the battery types will differ. There are two common types of battery depending on your use:

  • Deep cycle battery - These are the most common solar batteries use with an off the grid supply. These batteries have been specifically designed to be discharged to a certain percentage and then recharged, making them ideal for situations such as camping and solar generator power.
  • USB battery pack - These smaller batteries are intended to power up devices such as cell phones and cameras, so they require a lot fewer capabilities. Many USB solar chargers use standard AA sized lithium or alkaline batteries which are easy to replace when needed. These batteries won’t hoard power, but feed it to your dying device when it needs a charge, so you’ll need a power pack if you want to keep it stored.

Solar Power Battery Storage at Home

One of the most widely discussed home battery storage systems for solar has been the Tesla Powerwall, with the ability to store energy created throughout the day with your solar panels and keep a battery charged that your home then uses at night for free power.

Two Men Standing Infront of Teslas Powerwall

These systems are not entirely new, though, but they do signal a great change in the way we use batteries and solar power. One of these battery packs can be stacked up to nine times, meaning homes can get a massive 90kWh of power without having to rely on the electricity supply from a provider.

Even just using a smaller scale battery for home has its advantages. Whether you want to run a few devices from a solar generator or keep your cell phone charged with a solar device, you can use solar batteries to help reduce your reliance on traditional forms of energy.

What Size Battery do I Need?

Before deciding on any solar system, battery inclusive or not, you need to calculate how much power you intend to use. Those who are camping will require less than someone looking for a full home storage system, so the models can vary quite significantly.

How much power do you want your battery to provide and how much storage capacity will it need for your camping trip? These will all be determined by your personal circumstances and things such as the weather conditions where you are. Will you be using another supply such as a powered site camping ground or will you rely solely on this solar energy?

Different Sized Solar Batteries on a White Background

If you’re looking to power your home and use a solar battery storage device, there are again many options. You may want complete independence from the power supply, or just opt for an emergency backup supply or rely on the power supply during peak times only. Each of these factors will determine the size of battery you need.

The rule of thumb with solar batteries is that you don’t want to use them until they’re completely drained, nor do you want them consistently overcharged. Ensure you have a larger battery capacity than what you plan on using so that you can extend the life of your battery and provide your family with the right amount of power.

The Future of Solar Battery Storage

One of the key ways that solar energy is set to improve in efficiency is with its batteries, so developers must continue to look for ways to enhance their power. The more powerful and capable a battery is when attached to a solar unit, the greater ability it has to store power for later use and further reduce our reliance on non-renewable energy sources.

Sollar Batteries in Use Connected to Grid

Whether you’re looking to power up a smaller USB device, go camping with a solar generator, or control your home completely with a solar power battery backup, these devices will help you achieve your goals. With solar power batteries, we’re able to not only harness the sun’s free energy for immediate use but store it for later as a reliable and renewable source of energy.

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