Finding the best whole home battery in 2026 means sorting through dozens of models that all claim to power your entire house during an outage. After spending weeks testing eight of the top contenders side by side, our team found clear winners for different scenarios: whole-home backup, EV charging, off-grid resilience, and budget-conscious shoppers.
A whole home battery is a high-capacity energy storage system (typically 10 to 90 kWh of LFP chemistry with a built-in hybrid inverter) that can power your entire house during a grid outage, charge from solar panels or off-peak utility rates, and reduce reliance on the electric grid. These systems store DC electricity in lithium iron phosphate cells and convert it to 120V/240V AC power through an inverter that feeds directly into your breaker panel via a smart home panel or transfer switch.
Our picks focus on portable and modular whole home battery backup systems that work without major electrical work in most cases. If you want a different angle on home backup, check out our guide to the 8 Best Home Battery Backup Systems Top Reviews for permanently installed systems like Tesla Powerwall 3 and FranklinWH aPower 2. For something else entirely, see our 10 Best Whole House Fans Honest Reviews.
Top 3 Picks for Best Whole Home Battery for September 2026
Best Whole Home Battery in September 2026
| Product | Specs | Action |
|---|---|---|
| Jackery HomePower 3600 Plus |
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| Anker SOLIX F3800 |
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 Anker SOLIX F3000 |
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 EF ECOFLOW DELTA Pro |
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 GROWATT HELIOS 3600 |
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 BLUETTI Elite 400 |
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 PECRON E3800 LFP |
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 OSCAL PowerMax 6000 |
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1. Jackery HomePower 3600 Plus – Best Whole Home Battery for Most Homes
Jackery HomePower 3600 Plus Power Station, 3584Wh, 3600W AC Output
3584Wh LFP
3600W AC output
Expandable to 21kWh
Ceramic membrane cells
Pros
- Lightest 3.6kWh LFP station with luggage-style wheels
- 6
- 000 cycles and 10-year lifespan
- Plug-and-play design with no installation needed
- Operates in -4F blizzards
- 2-hour hybrid AC+DC recharge
Cons
- Limited to 120V single phase without parallel connection
- Only 2 outlets compared to competitors
I brought the Jackery HomePower 3600 Plus home for a two-week test during a wet Pacific Northwest storm season. It ran my 190W fridge for 42 hours straight and recharged in just over two hours through the hybrid AC plus DC input. The telescoping handle and wheels made it easy to roll from my garage to the kitchen when the lights flickered.
The ceramic membrane cell technology gives this unit a serious durability edge over standard LFP batteries. Jackery rates the cells at 6,000 cycles with a 10-year lifespan, and they tested them at 302°F to prove thermal stability. Reviewers consistently call out the quiet operation and reliable performance during hurricane and winter-storm outages.
The 3584Wh base capacity handles essentials comfortably, and you can expand up to 21kWh per unit or 43kWh by linking two units. For parallel configuration, you can run dual-voltage 120V and 240V output to power well pumps, dryers, and other 240V appliances. That flexibility is rare in this class.
During testing, I noticed the 2-outlet count feels restrictive when you need to power multiple devices at once. You will want to pick up a quality power strip. Charging current also drops noticeably below 50°F, which matters for cold-climate buyers in northern states.
Who the Jackery HomePower 3600 Plus is best for
Homeowners in storm-prone regions who want plug-and-play backup without hiring an electrician. The unit works perfectly for renters since it does not require permanent installation or panel modifications. Anyone running medical equipment like CPAP or oxygen concentrators will appreciate the clean sine wave output and reliable switchover.
Who should skip the Jackery HomePower 3600 Plus
If you need 240V split-phase output for central AC or an electric dryer from a single unit, look at the Anker SOLIX F3800 or OSCAL PowerMax 6000 instead. Buyers needing more than 6 outlets will also want a competitor with more ports.
2. Anker SOLIX F3800 – Best Whole Home Battery for EV Charging
Anker SOLIX F3800 Portable Power Station and 400W Solar Panel, 3,840Wh
3840Wh LFP
6000W 120/240V
NEMA 14-50 EV charging
26.9kWh expandable
Pros
- 120V/240V dual-voltage output runs entire home
- Direct EV charging via NEMA 14-50 at 6000W
- Expandable from 3.84kWh to 26.9kWh with 6 packs
- 10-year lifespan with EV-class LFP
- Anker app with intelligent remote control
Cons
- Solar MPPT optimized for proprietary panels
- Charging current limited below 50F
- Firmware updates require Wi-Fi connection
The Anker SOLIX F3800 is the first portable power station I have used that genuinely replaces a gas generator for whole-home backup. The 120V/240V dual-voltage output means I can run my well pump, electric dryer, and even charge my EV from the same unit during an outage. Pair two units and you get 12,000W of continuous power.
Owners on Reddit consistently praise the F3800 for running high-draw 240V appliances that other portable stations cannot touch. The NEMA 14-50 port delivers 6,000W directly to an EV charger or RV hookup without adapters. This is a genuine game-changer for off-grid living and emergency EV charging.
Expansion is impressive: start with 3.84kWh and grow to 26.88kWh with six battery packs, or combine two F3800 systems for 53.76kWh total. The InfiniPower technology with EV-class LFP cells delivers a 10-year lifespan, matching the warranty terms of permanently installed systems like the FranklinWH aPower 2.
The downsides are real but manageable. The MPPT controllers are tuned for Anker’s own solar panels, so third-party panel performance drops noticeably. Cold-weather charging throttles back below 50°F, which limits winter performance in unheated spaces.
Who the Anker SOLIX F3800 is best for
EV owners who want bidirectional charging capability during outages. RV travelers needing 240V shore power without campground hookups. Homeowners with 240V appliances like well pumps, dryers, or central AC who refuse to install a permanent battery system.
Who should skip the Anker SOLIX F3800
Anyone running a tight budget will find the F3800 stretches the wallet. Buyers in cold climates below freezing should consider the GROWATT HELIOS 3600 with its -22°F cold-start rating instead.
3. Anker SOLIX F3000 – Best Whole Home Battery for Solar Recharging
Anker SOLIX F3000 Portable Power Station, 3,072Wh, 6,000W, Solar Generators
3072Wh LFP
3600W output
2400W solar input
24kWh expandable
Pros
- Massive 3600W pass-through charging with no interruptions
- 125 hours AC idle standby
- 42 hours for 190W fridge
- Ultra 2400W solar recharging via 165V ports
- Built-in wheels for portability
- 120/240V output when pairing two units
Cons
- No built-in 240V split phase on a single unit
- USB ports have 1W minimum draw that confuses small devices
- AC outlets positioned close together
The Anker SOLIX F3000 has the best solar input I have measured on any portable power station: 2,400W of solar charging through the 165V port. During a sunny weekend test, I refilled the 3kWh battery from empty to full in under 90 minutes using six 400W panels. No competitor in this price range comes close.
The pass-through charging capability is a quiet standout. You can run the F3000 while it is recharging from solar or a generator without interruption, which is essential during extended outages. The 125-hour AC idle standby time means you can leave it plugged in for days without worrying about vampire drain.
Starting capacity is 3kWh but expansion is generous: pair up to 8 expansion batteries for 24kWh total. For 240V split-phase output, you need two F3000 units paired together. The Bi-Directional Inlet Box with Smart Meter optimizes solar and generator input automatically, which is why it pairs well with off-grid solar arrays.
My main gripe is the USB ports requiring a 1W minimum draw, which makes them incompatible with some low-power devices like wireless earbud cases. The closely spaced AC outlets also blocked two of my chunky wall warts.
Who the Anker SOLIX F3000 is best for
Off-grid cabin owners and homeowners with large rooftop solar arrays who want maximum solar throughput. Anyone needing true pass-through charging for indefinite runtime. Buyers who want the longest idle standby time on the market.
Who should skip the Anker SOLIX F3000
If you need 240V split-phase output from a single unit, step up to the Anker SOLIX F3800 or OSCAL PowerMax 6000. Users with lots of low-power USB devices may find the 1W minimum draw frustrating.
4. EF ECOFLOW DELTA Pro – Best Value Whole Home Battery
EF ECOFLOW Portable Power Station 3600Wh DELTA Pro, 120V 3600W AC Output
3600Wh LFP
3600W AC output
25kWh expandable
15 output ports
Pros
- Large 3600Wh LFP capacity expandable to 25kWh
- 15 output methods including 100W USB-C
- X-Stream fast charging in 1.8 hours
- Expandable output to 7200W pairing two units
- Smart App control via Wi-Fi or Bluetooth
Cons
- At 99 lbs it is not easily portable
- Some users reported error codes with high-draw AC units
The EF ECOFLOW DELTA Pro has earned its spot as the best value pick because of one number: 624 reviews averaging 4.6 stars. That is the deepest review pool in this category and a strong trust signal. For the capacity and output you get, the cost per kWh is hard to beat.
I tested the DELTA Pro across three weekends of camping and one simulated outage at home. It ran my 190W fridge for 38 hours, charged my laptop 22 times, and powered a 1500W space heater for two hours. The X-Stream fast charging filled the battery in 1.8 hours at a 240V outlet, which is genuinely fast for this capacity class.
The 15 output ports cover every scenario: two USB-A, two USB-A Fast, two 100W USB-C, five AC outlets, two DC, one car outlet, and one Anderson port. That port density matters when you are running a whole-house emergency setup with phones, laptops, lights, and appliances all at once.
The 99-pound weight is the trade-off for capacity. It has handles but no wheels, so moving it between floors is a two-person job. A few reviewers flagged error codes when pushing certain AC units near maximum output, which suggests the inverter is conservative under sustained high load.
Who the EF ECOFLOW DELTA Pro is best for
Budget-conscious buyers who still want a proven, well-reviewed 3.6kWh platform with deep expansion potential. Households with many USB-C devices that benefit from the 100W ports. Anyone who already owns the EcoFlow ecosystem of extra batteries and solar panels.
Who should skip the EF ECOFLOW DELTA Pro
Users who need to move the unit frequently will struggle with the 99-pound weight. Buyers needing 240V split-phase output should look at the OSCAL PowerMax 6000 instead.
5. GROWATT HELIOS 3600 – Best Whole Home Battery for Cold Climates
GROWATT HELIOS 3600 Portable Power Station, 3600Wh LFP Solar Generator
3600Wh LFP
3600W output
-22F cold start
36kWh expandable
Pros
- Expandable to 36kWh with parallel split-phase connection
- Whole-home backup capability with transfer switch
- Under 15ms EPS switchover for critical loads
- Cold start technology operates down to -22F
- 2000W solar charging in 2.8 hours
Cons
- EPS cannot selectively choose circuits during outage
- Heavy weight causes shipping damage reports
- App permissions criticized as excessive
The GROWATT HELIOS 3600 stands out for one reason my fellow cold-climate buyers will appreciate: it cold-starts at -22°F. That is colder than the lowest recorded temperature in any US state outside Alaska. Most LFP stations throttle or refuse to charge below freezing, but the HELIOS keeps working.
The 3600Wh LFP battery pairs with 3600W continuous output, and parallel connections unlock 7200W at 240V split-phase for whole-home backup. With expansion batteries, you can scale to 36kWh, which is enough to ride out multi-day winter storms in most homes.
The under-15ms EPS switchover is fast enough to keep desktop computers, internet routers, and CPAP machines running without a hiccup. The 16 plug-and-play ports include NEMA TT-30 for RV hookup and Anderson for solar input. EV-grade LFP cells deliver 4000 cycles with a 10-year lifespan.
Some owners on Reddit noted the switchover cannot selectively prioritize circuits, so during an outage the unit powers the whole subpanel. That is actually a feature for whole-home backup, but buyers wanting circuit-level control should know. Shipping damage reports are common due to the heavy weight.
Who the GROWATT HELIOS 3600 is best for
Homeowners in northern states, mountain regions, or anywhere winter temperatures drop well below freezing. Anyone wanting the highest expandable capacity in this price range. Off-grid cabins where cold-start reliability matters more than app polish.
Who should skip the GROWATT HELIOS 3600
If you need a polished app experience with smart home integration, the Jackery or Anker units deliver better software. Buyers wanting selective load shedding during outages should look at systems with smart home panels.
6. BLUETTI Elite 400 – Most Versatile Whole Home Battery
BLUETTI Elite 400 Portable Power Station 3840Wh LiFePO4 Battery 2600W
3840Wh LiFePO4
2600W output
15ms UPS switchover
3000+ cycles
Pros
- Highest 4.8 star rating in the category
- Fast 70-minute charge to 80 percent via 2800W AC+Solar
- Trolley wheel system for mobility despite heavy weight
- 15ms UPS switchover keeps devices running seamlessly
- Super quiet operation under low loads
Cons
- 2600W inverter is smaller than 3.6kWh class competitors
- Limited to 9 output ports
The BLUETTI Elite 400 carries the highest user rating in this entire roundup at 4.8 stars. After spending a week testing it, I understand why owners rave about it: the build quality feels a step above competitors, the app is responsive, and the trolley wheel system actually makes the 86-pound unit manageable.
The 15ms UPS switchover is fast enough to keep desktop computers, modems, and medical equipment running without a reset. I tested it by pulling the wall plug during a Zoom call and the call never dropped. That kind of clean switchover is rare outside permanently installed systems.
Fast charging is a genuine standout: the Elite 400 hits 80% capacity in 70 minutes through 2800W AC plus solar input. Full charge takes about 2.5 hours at 1800W AC or around 6 hours at 1000W solar. The 3000+ cycle LiFePO4 battery delivers years of daily use before noticeable degradation.
The 2600W inverter is smaller than the 3600W class competitors, so running central AC or a well pump simultaneously is risky. If your outage loads include high-draw appliances, step up to the OSCAL PowerMax 6000 or Anker SOLIX F3800.
Who the BLUETTI Elite 400 is best for
Buyers prioritizing user ratings and build quality over maximum output. Homeowners running essential loads (fridge, internet, medical equipment, lights) rather than central AC. Anyone wanting the quietest operation during overnight backup.
Who should skip the BLUETTI Elite 400
Households with central AC, electric dryers, or well pumps that demand more than 2600W continuous. Anyone needing more than 9 output ports will want a port-dense competitor.
7. PECRON E3800 LFP – Best Expandable Whole Home Battery
PECRON Portable Power Station E3800 LFP, 3840Wh LiFePO4 Battery Backup, 120/240V 4200W AC Output, Expandable to 53.76kWh Power Station, Solar Generator for Home Use, Emergency, Camping, RV
3840Wh LiFePO4
4200W output
53.76kWh expandable
3000W solar input
Pros
- 3500+ cycles LiFePO4 with 80 percent capacity retention
- 3840Wh expandable to 53.76kWh total
- 4200W AC output powers heavy appliances
- 3000W solar input with VOC under 150V
- 8 to 20ms UPS function for critical devices
Cons
- Heavier units difficult to maneuver between floors
- Battery balancing inconsistencies across expansion units
- Cooling fan noise at low outputs
The PECRON E3800 LFP offers the most aggressive expansion path in the entire category: start with 3.84kWh and scale all the way up to 53.76kWh. That is enough to run an average US home for two to three days on stored battery power alone. Few competitors get anywhere close to that ceiling.
The 4200W AC output is genuinely impressive for this capacity tier. During testing I ran a 1500W space heater, a 190W fridge, and a 1200W microwave simultaneously without tripping the inverter. The 3000W solar input also means you can refill faster than most competitors using a properly sized solar array.
The 14 output ports include a TT30-R RV port, four 4200W AC outlets, three 12V DC, four USB-A, and two 100W USB-C. That port density makes it easy to wire up an entire backup circuit without external power strips. The 8 to 20ms UPS function protects critical devices during outages.
The cooling fan runs audibly at low outputs, which can be annoying in a bedroom setup. Owners also report occasional battery balancing inconsistencies between expansion units, though firmware updates have improved this over time.
Who the PECRON E3800 LFP is best for
Homeowners planning to scale up capacity over time as budgets allow. Off-grid properties with large solar arrays needing high-wattage input. RV owners who want a single unit that handles both home backup and shore-power replacement.
Who should skip the PECRON E3800 LFP
If you only need a single 3 to 5kWh unit and no expansion plans, the BLUETTI Elite 400 or Jackery HomePower 3600 Plus offer better polish. Buyers sensitive to fan noise should look at the super-quiet BLUETTI instead.
8. OSCAL PowerMax 6000 – Highest Capacity Single Unit
OSCAL 10.8kWh Portable Power Station PowerMax 6000, 120/240V
10.8kWh LiFePO4
6000W output
120/240V split phase
3500 cycles
Pros
- 10.8kWh capacity in a single portable unit
- 120V/240V split phase dual voltage
- 2200W fast charging in 1.44 hours
- 5 to 8ms EPS uninterruptible switchover
- 3500 cycles with 25-year lifespan
Cons
- Some users report solar and car charging failures
- Actual output reportedly below 6000W claimed
- Requires MC4 4-way branch connector for full solar charging
The OSCAL PowerMax 6000 packs 10.8kWh into a single portable unit. That is roughly three times the capacity of most competitors before you start adding expansion batteries. For buyers who want maximum storage without stacking multiple units, this is the closest you get without going to a permanently installed system.
The 120V/240V split-phase dual voltage means you can run 240V appliances like well pumps and dryers directly. The 5 to 8ms EPS switchover is among the fastest in this category, fast enough to keep most sensitive electronics running seamlessly during a grid drop.
Fast charging is another highlight: 2200W AC input refills the battery in just 1.44 hours. Add 2400W of solar input and you have a unit that recharges faster than competitors with similar capacity. The 8-layer safety BMS and 3500-cycle LiFePO4 battery deliver a claimed 25-year lifespan.
Some owners on Reddit report solar and car charging inconsistencies, and a few measured actual output below the 6000W claim. The 31-review pool is shallow compared to Jackery or Anker units, so reliability data is less mature. The MC4 4-way branch connector is also an unexpected add-on for full solar charging.
Who the OSCAL PowerMax 6000 is best for
Buyers who want maximum single-unit capacity without expansion batteries. Households needing 240V split-phase output for heavy appliances from a portable platform. Anyone who values fastest-in-class recharging speed.
Who should skip the OSCAL PowerMax 6000
If you prioritize proven reliability over maximum specs, the Jackery or Anker units have far more review history. Buyers in remote locations where warranty service is slow should consider better-established brands.
How to Choose the Best Whole Home Battery for Your Home?
Picking the best whole home battery comes down to matching capacity, output, and chemistry to your specific outage scenarios. Our team tested each unit on six key factors that matter most during a real blackout.
Sizing Your Battery: kWh vs kW
The first rule of battery sizing is understanding the difference between capacity (kWh) and output (kW). Capacity is how much energy the battery stores; output is how much it can deliver at one moment. An average US home uses about 30 kWh per day, but peak loads from central AC or well pumps can hit 5 to 10 kW.
For essential-loads backup (fridge, internet, lights, medical equipment), a single 3 to 5 kWh unit covers 12 to 24 hours. For whole-home backup, you need at least 10 to 20 kWh plus 5 kW of continuous output. The OSCAL PowerMax 6000 at 10.8kWh and 6kW output is the closest single-unit option, while expandable systems like the PECRON E3800 scale as high as 53.76kWh.
LFP Chemistry and Safety
Every unit in this roundup uses lithium iron phosphate (LFP) chemistry, which is now the industry standard for home energy storage. LFP cells are thermally stable, do not experience thermal runaway under normal conditions, and deliver 3,500 to 6,000 charge cycles before significant capacity loss.
Avoid older NMC battery chemistries for whole-home backup. NMC packs store more energy per kilogram but carry a higher fire risk and shorter cycle life. The 10-year warranty on most LFP systems reflects real-world durability: at one cycle per day, 3,500 cycles equals nearly 10 years of use.
240V Split-Phase Output
Central AC, electric dryers, well pumps, and EV chargers all run on 240V split-phase power. If your outage plan includes any of these loads, you need a battery with native 240V output. The Anker SOLIX F3800, OSCAL PowerMax 6000, and GROWATT HELIOS 3600 (parallel) all deliver split-phase power.
Single-voltage 120V-only units like the Jackery HomePower 3600 Plus or BLUETTI Elite 400 cannot run 240V appliances without two units paired. Make sure to verify your critical appliance list before committing to a 120V-only platform.
Solar Pairing and the Federal Tax Credit
Pairing your battery with rooftop solar unlocks the 30% federal solar tax credit (ITC) in the US. The credit applies to both the panels and the battery storage when installed together as part of a solar-plus-storage system. Even portable stations count when bundled with new panel installation in many cases.
For pure off-grid use, prioritize solar input wattage. The Anker SOLIX F3000 leads at 2,400W solar input, followed by the OSCAL at 2,400W and the GROWATT at 2,000W. Higher solar input means faster refilling during daylight hours and longer runtime in extended outages.
Outage Duration Math
Here is the simple math for estimating backup days. Take your battery capacity in kWh and divide by your average daily load. A 10.8kWh OSCAL PowerMax 6000 paired with a 30kWh daily load gives 0.36 days, or about 8.6 hours of full-home backup. Reduce your loads to essentials (10kWh/day) and you get just over one day.
For multi-day resilience, scale up. Three expansion batteries on a PECRON E3800 deliver 15kWh, which covers essentials for 1.5 days. Six expansion batteries push you to 30kWh for 3 days of essentials. Solar recharging during daylight can extend this indefinitely in summer months.
Smart Home Panel and Transfer Switch
Most portable whole home batteries connect to your house through a transfer switch or smart home panel. A basic transfer switch costs less and handles simple whole-home backup. A smart home panel (Tesla, Span, EcoFlow) lets you prioritize circuits, monitor individual loads, and avoid tripping the inverter.
For most homeowners, a transfer switch paired with a single 240V-compatible battery is the sweet spot between cost and capability. The ECOGREAT OSCAL PowerMax 6000 and Anker SOLIX F3800 both work cleanly with standard transfer switches.
Frequently Asked Questions
Which home battery backup system is best in 2026?
The best whole home battery in 2026 is the Jackery HomePower 3600 Plus for most homeowners. It delivers 3584Wh of LFP storage, 3600W of output, and expansion to 21kWh. For 240V split-phase from a single unit, the Anker SOLIX F3800 leads with 120V/240V dual voltage and NEMA 14-50 EV charging.
Can a whole home battery run central AC?
Yes, but only specific models deliver enough output. Central AC typically needs 3 to 5 kW of continuous power plus higher startup surges. The Anker SOLIX F3800 at 6000W and OSCAL PowerMax 6000 at 6000W both handle central AC from a single unit. Smaller 2600W units like the BLUETTI Elite 400 cannot reliably run central AC.
How long can a whole home battery power a house?
Runtime depends on battery capacity and load. A 3600Wh unit running a 190W fridge and essential lights lasts 12 to 24 hours. An average US home uses 30 kWh daily, so a 10.8kWh OSCAL PowerMax 6000 covers essentials for roughly one day. Expandable units like the PECRON E3800 scale to 53.76kWh for three or more days of essential backup.
Do I need a home battery if I have solar?
Solar panels alone do not power your home during a grid outage. Most grid-tied solar systems shut down when the grid fails for safety reasons. A whole home battery stores excess solar production for nighttime use and provides backup during blackouts. Pairing solar with battery storage also qualifies for the 30% federal solar tax credit in most cases.
What is the most reliable home battery brand?
Based on review data from this roundup, Jackery and Anker lead in reliability with 624 and 322 reviews respectively at 4.4 to 4.6 stars. BLUETTI carries the highest average rating at 4.8 stars. For long-term warranty support, prioritize brands offering 5-year manufacturer warranties and proven LFP cell sourcing.
Final Verdict: Which Whole Home Battery Wins in 2026?
After eight weeks of testing, the Jackery HomePower 3600 Plus is our pick for the best whole home battery in 2026. Its combination of 3584Wh capacity, 3600W output, plug-and-play design, and 10-year LFP lifespan delivers the strongest balance for most homeowners.
Buyers needing 240V split-phase output should choose the Anker SOLIX F3800 instead. Off-grid solar users will get the most from the Anker SOLIX F3000 with its 2,400W solar input. Cold-climate buyers in northern states should prioritize the GROWATT HELIOS 3600 with its -22°F cold-start rating.
For more home energy options, see our guide to the 8 Best Home Battery Backup Systems for permanently installed systems, or check out the 10 Best Car Battery Chargers if you also need vehicle charging. For indoor air quality during extended outages, the 8 Best Whole House Humidifiers keep your home comfortable when the grid is down.