The Home Battery ReportIndependent · No installer money

Battery database

Home battery specs, sourced and compared

Every spec below is transcribed from the manufacturer datasheet and dated. We take no money from installers or manufacturers, so where a number is not published, we say so instead of guessing.

Sold new in 2026

Anker SOLIX X1
10, 15, or 20 kWh nominal per module (usable not published)LFP6 kW

high-surge modular backup

BYD Battery-Box Premium HVS
10.24 kWhLFP

Installer specified high voltage solar plus storage systems where the homeowner wants a scalable cobalt free LFP battery paired with a chosen hybrid inverter

EG4 PowerPro WallMount
14.3 kWhLFP10.2 kW

DIY and installer solar setups needing rugged, low-cost outdoor-rated storage paired with an EG4 hybrid inverter

Enphase IQ Battery 5P
5 kWhLFP3.84 kW

modular, start-small backup

Enphase IQ Battery 10C
10 kWhLFP7.08 kW

microinverter whole-home backup

Fortress Power eVault Max 18.5
18.43 kWhLFP9.2 kW

Large-capacity residential and light-commercial backup that needs to scale

FranklinWH aPower 2
15 kWhLFP10 kW

whole-home backup with big surge loads

Generac PWRcell 2
up to 18 kWhNMC10.5 kW

generator-brand backup ecosystem

LG Energy Solution Home 8
14.4 kWhchem n/a7.5 kW

all-in-one whole-home backup

Qcells Q.HOME CORE
up to 18 kWhLFP7.6 kW

Qcells solar pairings

Savant Power Storage 20
18 kWhLiFePO412.5 kW

Large services needing high surge power in one integrated unit, stacked for whole home backup

SolarEdge Home Battery (400V)
9.7 kWhchem n/a5 kW

existing SolarEdge solar owners

sonnen sonnenCore+
10 kWhLFP4.8 kW

cycle-life and warranty focus

Tesla Powerwall 3
13.5 kWhchem n/a11.5 kW

solar-paired whole-home backup

Head to head

Discontinued (kept for reference)

The brand on the box is not what makes a battery worth it. Your rate plan, usable capacity, and local incentives are. Run the Worth It calculator.