Solar Battery

A solar battery stores excess energy generated by your home's solar panels, letting you power your space during outages or after the sun sets. These systems come in various sizes and chemistries, each with different lifespans and storage capacities to match your household's needs. Whether you're exploring backup power or maximizing your solar investment, Angi connects you with pros and resources to guide your decision.

Related to Solar Battery Service

Solar Battery Service Articles and Advice
Stephanie Mickelson  •  Apr 10, 2026
What Happens to Solar Power When the Batteries Are Full?
What happens to solar power when the batteries are full? We’re here to answer that question and give you tips on what to do with the excess.
Lauren Bongard  •  Apr 10, 2026
How Many Solar Batteries Are Needed to Power a House?
Your solar system batteries are the real MVPs for keeping the lights on. Click to learn how many solar batteries are needed to power a house.
Stephanie Mickelson  •  Apr 9, 2026
What Are the Different Types of Solar Batteries?
There are three main types of solar batteries, but which one is best for your home? We’ll walk you through the different types and how to make your decision.
Stephanie Mickelson  •  Apr 5, 2026
How Do Solar Batteries Work?
Solar batteries store excess energy from the solar panels for later use. If you want to learn more about how solar batteries work, you’ve come to the right place.
Stephanie Mickelson  •  Apr 5, 2026
Pros and Cons of Solar Battery Storage
Solar batteries allow you to store excess energy from your solar panels, but what are the pros and cons of solar battery storage? We break it all down.
Stacey L. Nash  •  Apr 5, 2026
Stand-Alone vs. Grid-Tied vs. Hybrid Solar Systems: Which Is Best for You?
Learn the differences between grid-tied and stand-alone solar power systems. Our expert comparison guide helps you choose which solar system is best for you.
Timothy Moore  •  Apr 4, 2026
How Much Does a Solar Battery Cost for Your Home? [2026 Data]
Solar battery costs depend on the size of your system, labor, and capacity. Learn how much you could pay for batteries for home solar systems.
Lauren Bongard  •  Mar 6, 2026
How to Size Batteries for Solar Panel Installations
Avoid underpowered solar batteries and wasted money. From daily energy use to depth of discharge, this guide explains how to size a battery for solar panels.
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Common Solar Battery Service Questions

The time your home can run off of a solar battery depends on the battery’s size and how much power you need to run your lights, heating or cooling system, and appliances. The average home uses around 30 kWh of energy per day, and a 10 kWh solar battery can produce around 30 to 45 kWh of energy, which could be enough to power your home for around 24 hours. A local solar panel installation pro can help you learn how to size your solar battery.

Knowing the right size solar battery system you need can be a little challenging, as your energy usage can fluctuate throughout the day. It’s a good idea to look at your utility bills to see how much energy your home uses per month to gauge what size battery will work for your home. You also need to factor in whether or not you want a whole-home battery system or a partial system for critical backups. Most homes will need a battery capacity of around 10 kWh.

Solar batteries can be a great investment to help maximize your solar savings and make your system and home more valuable, but they’re most beneficial to customers who don’t have access to net metering. If your state or energy provider doesn’t provide net metering, batteries can be a great way to offset consumption even when your panels aren’t producing power. They also come with the added benefit of providing electricity through blackouts, so they’re valuable in areas prone to severe weather that could cause frequent blackouts. Your installer can help you decide if batteries are worthwhile.

Solar batteries last between five and 15 years. Several factors play a role in the battery’s life span, including its quality, how often it’s charged and discharged, and environmental conditions. Batteries that are well-maintained, used in moderate climates, and not frequently overcharged tend to last longer. Regular maintenance and following the manufacturer’s usage guidelines can help extend the life of your solar battery.

Solar battery systems aren’t the only type of home power systems. Other home power systems include whole-house generators and electric vehicle (EV) charging stations. Unlike solar batteries that use electricity from solar systems or the grid, whole-house generators use diesel, propane, gasoline, or other fuels to power your home in an outage. Some EV brands allow you to use your EV battery as a backup to partially power your home in case of emergencies, but not all are interchangeable.