If you are adding storage to your solar system, the battery you choose affects backup capacity, lifespan, and cost. Here are the leading home solar batteries in 2026 and how to choose.
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Top Home Solar Batteries
| Battery | Best for | Notable |
|---|---|---|
| Tesla Powerwall | All-in-one simplicity | Popular, integrated, strong app and ecosystem |
| Enphase IQ Battery | Modular sizing | Expandable in smaller increments, microinverter ecosystem |
| Franklin WH aPower | Whole-home backup | High capacity for backing up more of the house |
| LG / others | Budget and availability | Varies by installer and region |
How to Choose
- Capacity (kWh) — how much you can store and run during an outage. Size it to what you want to back up.
- Power output (kW) — how many appliances it can run at once.
- Warranty — typically around 10 years; check cycle and capacity guarantees.
- Installer support — what your local installer carries and services matters as much as the brand.
What They Cost
Home batteries generally run $10,000 to $20,000 before incentives, and the 30% federal credit applies. See is a battery worth it for the full breakdown.
Get quotes with battery options →
FAQ
How many batteries do I need?
It depends on how much of your home you want to back up and for how long. An installer sizes it to your usage during a quote.
Is the Powerwall the best battery?
It is the most popular for its all-in-one simplicity, but the best choice depends on your backup needs, budget, and what your installer supports.
Related
General 2026 guidance. Confirm current models, specs, and warranties with your installer.