Best solar batteries for your home in 2025
We reviewed the top solar batteries and found that the Villara VillaGrid comes in at number one.
Home batteries can be a great investment for your home, though we’ll admit they’re not for everyone. Adding storage to your solar panel system makes perfect sense if your area doesn’t have a consumer-friendly net metering program, you face frequent power outages, or you simply want more independence from your utility company.
If that’s you, the next step is weeding through all of the home storage options on the market. Choosing the best battery boils down to factors like battery chemistry, performance, customization, warranty, and cost. We looked at all these factors in dozens of models featured on the EnergySage Marketplace to determine the best batteries of 2025.
Five brands stood out: Villara, Tesla, Panasonic, HomeGrid, and Duracell Power Center.
EnergySage equipment rating system
Rating Criteria | What's Included |
---|---|
Performance | Roundtrip efficiency, usable capacity, largest possible battery capacity in one system, peak power, continuous power, battery chemistry, power density |
System customization | Enclosure rating, operating altitude, discharge temperature (high and low), smallest building block size, weight, cubic feet, additional customization |
Capabilities | Generator integration, inverter integration islanding capability, additional capabilities |
Warranty | Warranty length, annual degradation, cycles/throughput. Additional criteria related to labor, shipping, and more |
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Battery | EnergySage Score | Our take |
---|---|---|
100/100 | Best efficiency & warranty | |
90/100 | Most popular | |
89/100 | Price & warranty runner-up | |
89/100 | Best scalability | |
87/100 | Best price per kilowatt-hour |
1. Villara VillaGrid: Best efficiency & warranty
Price: Not available
Capacity: 11.5 kWh
Roundtrip efficiency: 98.5%
The Villara VillaGrid battery stands out with its industry-leading, 20-year warranty, made possible by its special lithium titanium-oxide LTO battery chemistry. Unlike more traditional lithium-ion batteries, LTO has better recharge capabilities and doesn't contain any carbon, which makes it extra safe. The VillaGrid also has a 98.5% efficiency rating—the best on our list—and offers the highest peak power output, making it a great choice if you have power-hungry appliances that need a strong surge of energy to start up.
The VillaGrid has many advantages, but there are better options if you need long-duration backup power. The 11.5 kilowatt-hour (kWh) battery can drain relatively quickly, depending on what you're powering.
2. Tesla Powerwall 3: Most popular
Price: $926/kWh
Capacity: 13.5 kWh
Roundtrip efficiency: 97.5%
The Tesla Powerwall 3 is a big step up from the Powerwall 2 and a popular pick among EnergySage customers. It has solid peak and continuous power ratings, which provides ample power for most homes. The Powerwall 3 comes with an integrated hybrid inverter, which means it can be AC-coupled or DC-coupled and easily added to an existing solar system through a retrofit installation.
If you have a shady roof and want panel-level optimization for your solar panel system (e.g., microinverters), you might consider skipping the Powerwall 3. You'll get the most out of the Powerwall 3 by DC-coupling it, which means using the Tesla hybrid inverter that comes with it.
3. Panasonic Evervolt: Price & warranty runner-up
Price: $843
Capacity: 18 kWh/kWh
Roundtrip efficiency: 94%
Image credit: Panasonic
The Panasonic Evervolt Home Battery is our runner-up in affordability, warranty term, and degradation rate (how much its ability to hold a charge decreases over time). While it might not be number one in any category, it’s one of the most affordable batteries and a strong pick all around. It also comes with an integrated hybrid inverter that can be AC- or DC-coupled to fit your unique installation needs.
The Evervolt is the least efficient battery in our top five, though it’s still higher than most in the market with an impressive 94% roundtrip efficiency. While it has plenty of capacity, it isn’t the most powerful pick, so if you experience extended outages often, the Evervolt might not be for you.
4. HomeGrid Stack’d Series: Best scalability
Price: $973/kWh
Capacity: 38.4 kWh
Roundtrip efficiency: 98%
The HomeGrid Stack’d Series is a powerful and efficient battery that's particularly good for those interested in going off-grid: It's the most scalable battery, with the highest maximum usable capacity by a landslide (576 kWh). The average person won't need a battery system this big, but the great thing about the Stack’d Series is that you can scale the capacity up or down to better meet your needs.
If you already have solar and want to add a battery, skip this one—it can only be DC-coupled. It also doesn't have the strongest warranty, guaranteeing only 60% of initial capacity by year 10.
5. Duracell Power Center Max Hybrid: Best price per kWh
Price: $564/kWh
Capacity: 15 kWh
Roundtrip efficiency: 96%
You’re used to powering your TV remote with Duracell batteries, and now you can use them to power your entire home. Of our top five picks, the Max Hybrid battery provides the highest continuous power, meaning you can power many devices simultaneously. It’s also super scalable and way more affordable than most batteries based on quotes through the EnergySage Marketplace.
The biggest downside of the Max Hybrid is that its smallest size is 15 kWh, which is pretty big. If you don't need that much capacity, you’re probably better off with a different battery.
Just like there are different types of alkaline batteries for your devices and gadgets, there are different types of solar batteries. You’ll want to install a battery with the right chemistry and coupling for your unique needs.
Most batteries are lithium-ion
A battery's chemistry refers to the primary compound used to store electricity inside it. Today, most home batteries use lithium-ion chemistry, which can be broken down into three primary categories: Lithium Nickel Manganese Cobalt Oxide (NMC), Lithium Iron Phosphate (LFP), and Lithium Titanium Oxide (LTO).
NMC
LFP
LTO
A couple of ways to couple batteries
A battery's coupling refers to its configuration relative to your solar inverter and electrical panel. There are two ways batteries can be coupled: alternating current (AC) coupling and direct current (DC) coupling.
AC-coupled
DC-coupled
We evaluated dozens of battery models quoted through the EnergySage Marketplace to determine which solar batteries are best. Here are some of the most significant factors we used to compared them:
Performance
Efficiency
Capacity
Power output
Warranty
Length
End of warranty capacity
Throughput or cycles clause
Price
It generally costs about $9,400 to install a 13.5 kWh battery (after the federal tax credit).
Choosing a costly battery can be worth it. Just make sure you understand why the battery is more expensive than the average to ensure it's worth it.
Top 10 solar batteries, compared
Battery | Energy Sage Score | Chemistry | Min Usable Capacity (one Battery) | Max Usable Capacity (full System) | Peak Power | Continuous Power | Roundtrip Efficiency | Coupling | Warranty & Capacity | Brand Price* |
---|---|---|---|---|---|---|---|---|---|---|
Villara VillaGrid 11.5 | 100/100 | LTO | 11.5 kWh | 11.5 kWh | 30 kW | 10 kW | 98.5% | AC/DC | 20 years at 70% | Not available |
Tesla Powerwall 3 | 90/100 | LFP | 13.5 kWh | 54 kWh | 11.5 kW | 11.5 kW | 97.5% | AC/DC | 10 years at 60% | $926/kWh |
Panasonic EVHB-I7-X20 | 89/100 | LFP | 18 kWh | 72 kWh | 11.1 kW | 7.6 kW | 94% | AC/DC | 12 years at 70% | $843/kWh |
HomeGrid Stack’d Series 38.4 | 89/100 | LFP | 38.4 kWh | 576 kWh | 24 kW | 14.4 kW | 98% | DC | 10 years at 60% | $973/kWh |
Duracell Power Center Max Hybrid 15/15 | 87/100 | LFP | 15 kWh | 80 kWh | 30 kW | 15 kW | 96% | AC/DC | 10 years at 70% | $564/kWh |
FranklinWH aPower | 84/100 | LFP | 13.6 kWh | 204 kWh | 10 kW | 5 kW | 89% | AC | 12 years at 70% | $1,140/kWh |
EG4 Wallmount All Weather Battery | 84/100 | LFP | 14.3 kWh | 42.9 kWh | 15.4 kW | 10 kW | 99% | DC | 10 years at 70% | $874/kWh |
Scheider Electric Boost Battery 10 kWh | 84/100 | LFP | 10 kWh | 30 kWh | 15.4 kW | 7.68 kW | 96% | DC | 10 years at 70% | $1,000/kWh |
Enphase IQ battery 5P | 83/100 | LFP | 5 kWh | 80 kWh | 7.68 kW | 3.84 kW | 90% | AC | 15 years at 60% | $1,488/kWh |
SolaX T-BAT H 10 kWh | 81/100 | LFP | 9 kWh | 80 kWh | 5.5 kW | 5.5 kW | 95% | AC/DC | 10 years at 70% | $1,111/kWh |
*Cost after installation for systems under 30 kWh, based on data from the EnergySage Marketplace from the second half of 2024. Cost applies to the brand, not to the individual battery model.
We think the VillaGrid is the best battery overall, but that doesn't mean it's the best battery for you. Some batteries are ideal for certain setups but won't work in others. Here are some questions to think about to find the best battery for you:
How long do you need backup power?
What do you want to power?
Do you already have solar–and how shady is your roof?
Where will you put your battery?
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- Access the lowest prices from installers near you
- Unbiased Energy Advisors ready to help
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