Solar Batteries: Power On, Even When the Grid is Off

Store your solar energy for night and backup use. Explore trusted brands, compare models, and find the right battery solution for your home or business.

How Solar Batteries Work

Tesla Powerwall 3 installed in a residential garage with a Tesla vehicle charging nearby at night.

Capturing Excess Energy

During the day, your solar panels often produce more energy than your home immediately uses. Instead of sending all of that back to the grid, a solar battery stores the extra electricity for later use.

Reliable Backup Power

When the sun sets, during cloudy days, or in the event of a grid outage, your battery automatically discharges stored energy to keep your home powered. This means greater energy independence and resilience.

Smarter Energy Use

Many batteries integrate with smart energy management systems, allowing you to shift usage to avoid peak utility rates, or to maximize self-consumption of your clean solar power.

Our Trusted Solar Battery Manufacturers

Enphase logo
Tesla Powerwall Certified Installer logo
Ecoflow logo
FranklinWH Home Power logo

Solar Batteries We Carry

Enphase IQ Battery 10C

Enphase IQ Battery 10C wall-mounted home solar battery
Usable Capacity: 10.08 kWh
Power Output: 3.84 kW continuous
Warranty: 15 years / 6,000 cycles
See full manufacturer specs

EcoFlow Ocean Pro

EcoFlow Ocean Pro home backup battery system
Usable Capacity: ~10 kWh
Power Output: 5 kW continuous
Warranty: 10 years
See full manufacturer specs

Tesla Powerwall 3

Tesla Powerwall 3 integrated solar battery with hybrid inverter
Usable Capacity: 13.5 kWh
Power Output: 11.5 kW continuous
Warranty: 10 years
See full manufacturer specs

FranklinWH aPower 2

FranklinWH aPower 2 wall-mounted home solar battery
Usable Capacity: 13.6 kWh
Power Output: 5 kW continuous / 10 kW peak
Warranty: 12 years
See full manufacturer specs

Frequently Asked Questions

How long do solar batteries last?

Most lithium-ion solar batteries last 10–15 years, or around 6,000–8,000 cycles, depending on the brand and usage.

Can solar batteries power my whole house?

It depends on the size of the battery and your home’s energy demand. Many batteries can run essential loads like lights, refrigerators, and outlets, while larger setups can cover the whole home.

Do I need a solar battery to go solar?

No, you can install solar panels without a battery. However, adding storage lets you use more of your own power at night and during outages.

What’s the difference between kWh and kW in batteries?

kWh (kilowatt-hours) measures how much energy the battery can store, while kW (kilowatts) measures how much power it can deliver at once.

How many batteries do I need?

That depends on your energy goals. One battery can cover basic backup, while multiple batteries may be needed for whole-home backup or off-grid living.

Are solar batteries safe?

Yes. Modern lithium-ion batteries undergo extensive safety testing and include built-in management systems to prevent overheating and overcharging.