Best Solar Batteries of 2022

Below are our top seven solar batteries:

SunPower SunVault

: Our pick for the highest capacity

  • Continuous power rating:  6.8 kW
  • Depth of discharge (DoD):  Not disclosed
  • Usable capacity: 12 kWh or 24 kWh
  • Warranty:  10 years, 4,000 cycles or throughput clause (varies by model)
  • Overview: Known for its high-efficiency solar panels, SunPower developed a solar battery in 2019. It’s one of the highest-capacity batteries on this list and uses the latest LFP battery chemistry, making it more powerful and long-lasting.

Tesla Powerwall 2

: Our pick for the best warranty

  • Continuous power rating:  5 kilowatts (kW)
  • Depth of discharge (DoD): 100%
  • Usable capacity:  5 kilowatt-hours (kWh)
  • Warranty: 10 years with unlimited cycles
  • Overview: The Tesla Powerwall 2 is one of the most popular solar batteries. It’s an AC lithium-ion battery that can be retrofitted into any existing solar power system. It also has one of the best warranties of the batteries we reviewed, with a standard 10-year warranty and an unlimited cycle clause.-lasting.

Sonnen Eco:

: Our pick for the best variety

  • Continuous power rating: 3 kW to 8 kW
  • Depth of discharge (DoD): 90%
  • Usable capacity: 5 kWh to 20 kWh
  • Warranty: 10 years or 10,000 cycles
  • Overview: The Sonnen Eco is a modular battery with seven size options. Its advanced Lithium Iron Phosphate (LFP) technology gives it a longer lifespan and improved efficiency compared to competitors.

Enphase IQ:

: Our pick for the best technology

  • Continuous power rating: 1.28 kW and 3.84 kW
  • Depth of discharge (DoD):  96%
  • Usable capacity: 3.36 kWh and 10.08 kWh
  • Warranty: 10 years with an optional 5-year extension or 4,000 cycles (varies by model)
  • Overview: Enphase is known for its high-quality inverters. Its solar battery, the Enphase IQ (formerly known as the Enphase Encharge), is integrated with this technology. The battery works with existing solar systems and provides software with insight into your power usage.

Generac PWRcell:

: Our pick for best efficiency

  • Continuous power rating: 3.4 kW to 6.7 kW
  • Depth of discharge (DoD):  84%
  • Usable capacity: 9 kWh to 18 kWh
  • Warranty: 10 years or throughput clause (varies by model)
  • Overview: The Generac PWR cell is a modular, DC-coupled battery with one of the highest round-trip efficiencies on our list at 96.5%. It is an excellent option for new solar systems.your power usage.


: Our pick for brand reputation

  • Continuous power rating: 5 kW
  • Depth of discharge (DoD):  95%
  • Usable capacity: 9.8 kWh
  • Warranty: 10 years, 4,000 cycles or 22.4 MWh throughput clause
  • Overview:The LG Chem RESU-1OH is a popular solar battery backed by of the most respected electronics companies in the world. It works with existing solar systems and can be stacked for added storage options. The LG RESU-IOH also has one of the highest round-trip capacities for an NMC battery at 94.5%.

Panasonic Ever Volt:

: Our pick for flexibility

  • Continuous power rating:  4.6 kW to 5.5 kW
  • Depth of discharge (DoD): Not disclosed
  • Usable capacity: 11.4 kWh and 17.1 kWh
  • Warranty: 10 years or throughput clause (varies by model)
  • Overview:Panasonic has a history as a leading battery manufacturer. The company’s solar battery, Panasonic EverVolt, offers AC- or DC-coupling options. You can install the batteries in an existing solar panel system or add them to a new one.

Did you know that if your TV, computer and other appliances are plugged in, they are quietly draining electricity – all day, every day – even when they are turned off? Electric power consumed by products when they are switched off or in a standby mode is known as standby power. While it may not be readily noticed, standby power is a big issue. It accounts for 5 percent to 10 percent of residential energy use, and could cost the average U.S. household as much as $100 per year.

Here are three easy tips that you can take action on right now to reduce your standby power loads and save money.:

  • Use a Power Strip with Switches. You can use a power strip with on/off switches to plug in your appliances. Surge protector power strips typically have such switches and help protect your appliances and electronics  If you plug all of your products into a power strip and flip off the power strip when these items are not in use, they are truly off.
  • Unplug Your Products. Another sure way to reduce your standby power load is to just unplug your products. Now, there are some products that you will want to keep plugged in, such as the digital alarm clock in your bedroom or the refrigerator.  But there are many appliances that you may not need to have plugged in, such as a toaster oven.
  • Use a timer for electronics with a constant display: Devices with a constant display, such as clocks and televisions, can be set to turn off after a certain amount of time. Use a timer to automatically shut off these devices to save on standby power.
  • Consider using ENERGY STAR® products. Many ENERGY STAR products are energy efficient and have lower standby power than comparable non-ENERGY STAR products.

So, there you go — three simple ways to reduce or eliminate your standby power, and save some money too!