Same hardware, quotes run $12K to $22K installed
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Product Range
Our Panasonic EVERVOLT Verdict
Panasonic discontinued the entire EVERVOLT solar and storage line in April 2025, ending production while promising to honor warranties and continue customer support. That changes the buyer question from whether the hardware is good, it was credible, to whether you want a new installation of a product with no future roadmap, a shrinking installer base, and single-sourced spare parts. This page exists mainly for owners who already have EVERVOLT on the wall and for buyers still being quoted leftover stock: the former need the warranty documents bookmarked, the latter need a serious discount and written parts commitments to justify the risk.
Specs Snapshot
From official datasheets and product pages, verified Jul 12, 2026. Confirm the datasheet revision on your quote matches these numbers before you sign.
- Usable capacity
- 9 kWh, 13.5 kWh, and 18 kWh cabinet sizes referenced in Panasonic materials
- Capacity range
- Up to four batteries for up to 72 kWh usable energy in Panasonic announcement materials
- Continuous power
- Up to 7.6 kW continuous backup power with a single 18 kWh cabinet in Panasonic materials
- Peak power
- Verify by cabinet and SmartBox configuration
- Chemistry
- Lithium-ion; production ended April 2025, verify exact module generation on any inventory quote
- Coupling
- AC and DC input support referenced in data sheet materials
- Scalability
- Stackable system with SmartBox; expansion hardware now limited to remaining inventory
- Warranty
- 12-year workmanship and performance warranty or 6,000-cycle-equivalent throughput, 70% capacity retention on the EV-B5 battery; accessories 5 years
From Panasonic EVERVOLT
Official product imagery and links, with the source page for every image.



Images courtesy of Panasonic EVERVOLT. Source linked under each image.
Strengths & Considerations
Strengths
- +High brand recognition.
- +Large cabinet sizing in published materials.
- +Good fit for comparison pages where buyers ask about trusted electronics brands.
Watch Out For
- −Panasonic exited residential solar and storage in April 2025 and no longer produces EVERVOLT hardware. Warranties are honored, but there is no roadmap, and new installs draw from remaining inventory.
- −Brand trust comes from consumer electronics, not from a deep home-storage service footprint, and the certified installer base is shrinking now that the program has ended.
- −Spare parts and technical support are single-sourced from a wound-down business unit, which makes a year-8 inverter failure a genuinely open question.
Quote Risks
The patterns that inflate Panasonic EVERVOLT quotes or hide costs until after signing. Check every one against your quote line by line.
- !Current product availability and installer support must be confirmed.
- !Do not compare old EVERVOLT specs against current Tesla/Enphase quotes without checking model generation.
- !SmartBox and backup configuration need separate line-item review.
Before You Sign: Confirm These
These are Panasonic EVERVOLT's own documented terms and open questions, not our test results. Get the specifics in writing before you sign anything.
- ?Panasonic stopped producing residential solar and storage products in April 2025. Any EVERVOLT quote today is remaining channel inventory; that is not automatically a dealbreaker, but it should come with a meaningful discount, not a brand-trust premium.
- ?The warranty runs 12 years, but the optional labor coverage of up to $500 per claim required installation by a Panasonic Authorized Installer plus registration within 90 days of install. Before signing anything, confirm the registration portal still processes and get the confirmation in writing.
- ?Replacement parts, the EVHB-I7 inverter and SmartBox in particular, now come from a wound-down business unit. Ask the installer to state in the contract how they will source a replacement inverter in year 6.
- ?Warranty claims require proof of purchase and a verifiable installation date, and transfers to a new homeowner need Panasonic's transfer form. Archive the invoice, commissioning date, registration confirmation, and the warranty PDF now, while the support pages are still online.
You are being quoted a new EVERVOLT system at anything close to pre-exit pricing, or the installer cannot show in writing how warranty claims and replacement parts will be handled now that Panasonic has left the business.
Key Models
9 kWh, 13.5 kWh, or 18 kWh usable per cabinet, up to 7.6 kW continuous in Panasonic materials; production ended April 2025
the stackable battery module inside the system; modules added later inherit only the original system's remaining warranty
backup transfer and energy management hub for the system
the system's hybrid inverter, now a single-sourced spare part from a discontinued line
Support & Warranty
The EVERVOLT Home Battery System carries a 12-year workmanship and performance warranty, or total throughput equivalent to 6,000 cycles at 90% depth of discharge if that comes first, with the EV-B5 battery guaranteed to retain at least 70% of rated capacity; accessories like the Pocket Wi-Fi get 5 years. Panasonic stated at its April 2025 exit that it will honor warranties and continue customer service, and its storage support pages and documentation remain online. The honest read: paper coverage is strong, but claims now run through a business Panasonic is winding down, so documentation discipline on your side matters more than it would with an active brand.
12-year workmanship and performance warranty or 6,000-cycle-equivalent throughput, 70% capacity retention on the EV-B5 battery; accessories 5 years
Warranty terms change by market and contract. Get coverage, throughput or cycle limits, and who actually services the system in writing before you sign.
Alternatives to Compare

Tesla Powerwall 3
mid rangeThe quote every serious buyer should benchmark against, especially in California and Texas.

SolarEdge Home Battery
premiumA strong shortlist item when the home already sits in the SolarEdge inverter ecosystem.

Enphase IQ Battery 5P
premiumThe cleanest shortlist item for Enphase microinverter homes and modular backup designs.
Comparing a few brands?
Tell us your state, outage goal, and any quotes you have. We will tell you whether Panasonic EVERVOLT or one of these fits better, and check the numbers so you do not overpay.
FAQ
Is Panasonic EVERVOLT worth it in 2026?
Panasonic discontinued the entire EVERVOLT solar and storage line in April 2025, ending production while promising to honor warranties and continue customer support. That changes the buyer question from whether the hardware is good, it was credible, to whether you want a new installation of a product with no future roadmap, a shrinking installer base, and single-sourced spare parts. This page exists mainly for owners who already have EVERVOLT on the wall and for buyers still being quoted leftover stock: the former need the warranty documents bookmarked, the latter need a serious discount and written parts commitments to justify the risk.
Who is Panasonic EVERVOLT best for?
Buyers who value a familiar electronics brand and are quoted a complete Panasonic storage system by a local installer.
What should buyers watch out for in a Panasonic EVERVOLT quote?
Panasonic stopped producing residential solar and storage products in April 2025. Any EVERVOLT quote today is remaining channel inventory; that is not automatically a dealbreaker, but it should come with a meaningful discount, not a brand-trust premium.
What brands should you compare against Panasonic EVERVOLT?
Most buyers should compare Panasonic EVERVOLT with Tesla Powerwall 3, SolarEdge Home Battery and Enphase IQ Battery 5P before signing anything. That gives you a real read on installed price per usable kWh, backup design, and installer depth.
How strong is Panasonic EVERVOLT on warranty and support?
The EVERVOLT Home Battery System carries a 12-year workmanship and performance warranty, or total throughput equivalent to 6,000 cycles at 90% depth of discharge if that comes first, with the EV-B5 battery guaranteed to retain at least 70% of rated capacity; accessories like the Pocket Wi-Fi get 5 years. Panasonic stated at its April 2025 exit that it will honor warranties and continue customer service, and its storage support pages and documentation remain online. The honest read: paper coverage is strong, but claims now run through a business Panasonic is winding down, so documentation discipline on your side matters more than it would with an active brand.
Sources (6) · Verified Jul 12, 2026
Research quality score /100, from official product pages, datasheets, and support documents.
Methodology
Brand verdicts are based on buyer fit, usable capacity, output, installer depth, support path, price pressure, and the risks that tend to show up after installation. A strong reply from a manufacturer can improve factual clarity, but it does not improve placement.
Specs come from official datasheets, product pages, and support documents, with the verified date shown next to the sources. Any price we publish carries its source and an as-of date. Quote risks are grounded in the quotes buyers send us for review and the patterns that repeat in them.
If support coverage, warranty language, or dealer access are thin, we would rather say that plainly than hide it behind marketing copy.
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