Wall- and floor-mount batteries pack 10 kWh or more into one finished enclosure, with no cabinet, busbars or rack to buy. They cost a little more per kWh than rack modules but are quicker to install and look at home in a garage or utility room. Several are rated for outdoor installs, and some heat themselves so they can charge below freezing. Like rack modules, most connect in parallel to build a bigger bank.
Prices were last checked October 24, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Full ranking 21
- Pytes V10α#1 of 21Full review
A UL-listed 10 kWh battery for outdoor wall mounting, for homeowners without indoor space. Add units in parallel for larger inverters.
Current Connected $2,000$2,00010 kWh120 A8,00010 years - Pytes V16#2 of 21Full review
A rugged, fully listed 16 kWh battery for outdoor whole-home backup with a 48 V inverter. You pay a premium for the IP66 enclosure and Pytes’ compatibility testing.
Current Connected $3,659$3,65916 kWh200 A8,00010 years - Ruixu Lithi2-16#3 of 21Full review
A heated, weather-resistant 16 kWh battery with full UL listings, at a low price per kWh. A good fit for a whole-home backup system with a 48 V inverter.
Amazon $3,099 Ruixu $3,059$3,05916 kWh200 A9,50010 years - EG4 WallMount Indoor 314Ah#4 of 21Full review
EG4’s current indoor wall battery, for whole-home systems that want large heated 16 kWh blocks. It costs about $100 less than the All-Weather version if the battery can live indoors.
Signature Solar $3,739.99 Current Connected $3,739.99$3,739.9916 kWh200 A10,00010 years - EG4 WallMount All-Weather 314Ah#5 of 21Full review
The outdoor pick in EG4’s wall lineup, for owners who want large heated 16 kWh blocks outside the house. It pairs best with EG4 inverters but talks to most major brands.
Signature Solar $3,835 Current Connected $3,835$3,83516 kWh200 A10,00010 years - EG4 WallMount Indoor 280Ah#6 of 21Full review
A cheap per-kWh indoor wall battery for EG4 inverter owners who want 14 kWh blocks with a heater. Buy while stock lasts; the 314Ah model replaces it.
Signature Solar $2,700$2,70014.3 kWh140 A8,00010 years - EG4 WallMount All-Weather 280Ah#7 of 21Full review
An outdoor-rated 14 kWh wall battery for EG4 inverter owners with no indoor space for storage. Compare it with the 314Ah All-Weather, which costs a little more per unit but less per kWh of extra capacity.
Signature Solar $3,124.99 Current Connected $3,124.99$3,124.9914.3 kWh140 A8,00010 years - ECO-WORTHY PowerMega 314#8 of 21Full review
A low-cost 16 kWh floor battery for off-grid and backup builders who want big capacity with few modules. Permitted grid-tied installs may need a model with UL 9540A.
Amazon $2,499.99 ECO-WORTHY $2,339.99$2,339.9916.1 kWh200 A10,00010 years - Discover Helios ESS 16kWh#9 of 21Full review
For homeowners who want a single large, heated, outdoor-rated battery that passes inspection. Its UL 9540 listing and direct inverter communication make it an easy choice for permitted grid-tied and off-grid builds.
NAZ Solar Electric $3,550$3,55016.1 kWh200 A-10 years - Fortress Power eFlex MAX 5.4#10 of 21Full review
A tough 5 kWh module for off-grid cabins, boats and small systems that need an outdoor-rated case. Larger inverters need three or more to run at full power.
Current Connected $1,449$1,4495.4 kWh60 A8,00010 years - ECO-WORTHY Wallbank S100#11 of 21Full review
An inexpensive wall-hung 5 kWh battery for indoor off-grid or backup systems. Pick the UL-listed Cubix100 if you need a permit.
ECO-WORTHY $869.99$869.995.1 kWh100 A6,00010 years - Growatt ALP 5.0L-E2 US#12 of 21Full review
An outdoor-rated 5 kWh battery for owners of a Growatt US hybrid inverter. Owners of other inverter brands get more for less from a rack module.
Amazon $1,547.55$1,547.555.1 kWh60 A-10 years - BigBattery Nexus 2 16kWh#13 of 21Full review
For off-grid cabins and homesteads that need a lot of heated storage for the least money and don’t need UL paperwork. Grid-tied homes facing inspection should pick a UL 9540 battery instead.
BigBattery $2,990$2,99016.1 kWh150 A8,00012 years - Fortress Power eVault MAX 18.5#14 of 21Full review
One of the largest single 48 V batteries sold, for whole-home or light-commercial systems installed by a dealer. Expect to pay dealer prices and plan for a heavy floor-standing cabinet.
Solamp $6,479$6,47918.4 kWh180 A8,00010 years - SunGoldPower CoreX 5 Elite#15 of 21Full review
The wall-mount version of the CoreX 5 Pro, for indoor systems where a rack doesn’t fit. Choose a UL-listed battery if your permit needs one.
Amazon $1,250$1,2505.1 kWh100 A5,00010 years - BigBattery 48V Husky 2 INV#16 of 21Full review
For RV, van and small off-grid systems that need a rugged, weatherproof 48 V battery that talks to the inverter. Home systems that stay indoors get more for the money from a rack battery.
BigBattery $1,580 Signature Solar $1,580$1,5805.1 kWh100 A3,50012 years - Briggs & Stratton SimpliPHI 6.6#17 of 21Full review
For homeowners and installers who want a neat, outdoor-rated stack that goes up in minutes with no battery cabling. It costs more per kWh than server-rack batteries, so it suits buyers who value the clean install and the Briggs warranty.
Off Grid Stores $3,362.99$3,362.996.7 kWh130 A4,50010 years - Renogy 48V 50Ah Core Self-Heating#18 of 21Full review
A rugged, heated 2.4 kWh battery for small 48 V off-grid and RV systems that don’t need inverter communication.
Renogy $701.99$701.992.4 kWh50 A6,0005 years - Victron Lithium NG 51.2V 100Ah#19 of 21Full review
Only for owners of an all-Victron system who want everything managed through VictronConnect and VRM. Anyone else gets more storage for the money from a server-rack battery.
Current Connected $3,026$3,0265.1 kWh100 A2,5005 years - EG4 WallMount Indoor 100Ah Discontinued#20 of 21Full review
A 5 kWh wall-hung battery for small indoor systems that don’t want a server rack. It is being dropped by retailers, so it suits owners adding to an existing bank more than new builds.
No price5.1 kWh100 A6,00010 years - Fortress Power eFlex 5.4 Discontinued#21 of 21Full review
Only worth buying to add matching modules to an existing eFlex bank. New systems should use the eFlex MAX, which costs far less.
Amazon $3,750$3,7505.4 kWh60 A8,00010 years
