HM6 all-in-one tower
One inverter, one to six stacked modules
The whole residential range: the model number is the module count, and the inverter output is the same across all of them.
Australia-wide
ESY Sunhome battery installers in Australia
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- ESY Sunhome HM6 keeps the inverter and battery modules together in one tower
- Unlock up to $7,000 in federal solar + battery rebates*
- Compare quotes from vetted installers, with ESY Sunhome experience where available
ESY Sunhome
What could an ESY Sunhome battery save your home?
*For eligible combined solar and battery installations before January 2027. Battery-only rebates vary with usable capacity. Your installer confirms eligibility and amount.
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Meet ESY Sunhome An all-in-one battery with a built-in fire extinguisher and a case sealed for outdoor walls.
- A fire extinguisher inside
ESY builds a fire extinguisher into the HM6 as part of what it calls its smart protection system.
- Sealed for outdoor walls
An IP66-rated enclosure that works from -25 °C to 60 °C, so the HM6 can sit on an outside wall.
- Stack 5 kWh blocks to 30
Each battery adds about 5 kWh, and the HM6's 6 kW inverter takes up to six of them for 30 kWh in total.
Add any extra modules in the first year: ESY's warranty doesn't allow expansion after that.
- 10 years, 70% capacity kept
ESY's Australian warranty covers the single-phase system to keep at least 70% of its capacity for 120 months from installation.
Ask your installer to confirm ESY has authorised them; the warranty excludes installs by anyone ESY hasn't authorised.
The company behind it
ESYsunhome is a Shenzhen battery maker that started with laptop and phone batteries before moving into home storage.
20-plus years
ESY says it has over 20 years in batteries, starting with laptop, phone and power-tool packs.
Shenzhen manufacturing
ESY says it builds in a 100,000 m² Shenzhen facility with 800 engineers and production staff.
Sydney warranty entity
ESY Sunhome Australia Pty Ltd, of Greenacre NSW, provides and covers the Australian single-phase warranty.
Want an ESY Sunhome battery on your home?
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Request a match with up to 3 approved installers. Current availability, campaign geography and brand suitability are checked for your enquiry.
Check the installation credentials
Ask each installer for their workmanship warranty, trading history and current brand credentials before you decide.
Rebates at quote
The federal Cheaper Home Batteries discount — roughly a quarter off installed cost — plus your state layer, applied upfront at quote.
Find ESY Sunhome installers near you.
Each state page lists its capital and regional centres, the battery rebate stack for that state, and the installers we match you with there. Not listed? Matching runs on postcode, so enter yours anyway.
- New South Wales — 13 locations
- Victoria — 8 locations
- Queensland — 11 locations
- Western Australia — 3 locations
- South Australia — 1 location
- Tasmania — 2 locations
- Northern Territory — 2 locations
- Australian Capital Territory — 1 location
Is ESY Sunhome right for your home? Fit and warranty checks
A good fit if…
- Single-phase households that want one tower rather than separate boxes on a wall
- Buyers who want a keen price per kilowatt-hour without being the very first owner in the country
- People confident about the capacity they need now, given expansion closes after the first year
- Sites where the battery has to stand outdoors and a weatherproof floor-mounted unit solves the siting problem
- Households who value a large body of real owner reviews over a longer corporate history
Consider the limitations
- You expect your consumption to grow years from now and will want to add capacity then
- You want to keep an existing inverter, since the tower brings its own
- Your home is three-phase, because the residential tower described here is a single-phase system
- You want a decade of Australian warranty claims behind the brand rather than a few years
The ESY Sunhome range
Stackable battery modules
Identical modules, ground or floor mounted
Added beneath the inverter in a single vertical footprint rather than beside it.
Larger high-voltage line
A separate, deeper family listed under its own certificate
A different product from the single-phase tower these pages describe — check which one a quote actually names.
ESY Sunhome specifications and source documents
ESY Sunhome sells a single-phase all-in-one: a hybrid inverter with stackable lithium iron phosphate modules in one weatherproof tower, sized by module count from a single module to six. It opened an Australian office in 2023 and has since built the largest body of owner reviews of any recent arrival on this site, rating well on them. The trade-off is written into its own warranty: capacity may only be expanded in the first year after installation, and not afterwards. So the size decided at the quote is, in practice, permanent — which makes the sizing conversation the most important one you will have about this product.
- Current ESY Sunhome line-up in Australia: ESYSUNHOME 5KWH+ (HM6-05) (4.86 kWh usable), ESYSUNHOME 10KWH+ (HM6-10) (9.73 kWh usable), ESYSUNHOME 15KWH+ (HM6-15) (14.59 kWh usable), ESYSUNHOME 20KWH+ (HM6-20) (19.46 kWh usable), ESYSUNHOME 25KWH+ (HM6-25) (24.32 kWh usable), ESYSUNHOME 30KWH+ (HM6-30) (29.18 kWh usable). Source
- ESY Sunhome pairs with its own hybrid inverter: new solar-and-battery installs use one unit; a retrofit means replacing the existing inverter. Source
- Usable capacity runs from 4.86 kWh to 29.18 kWh. Source
- Capacity can be added later without replacing the inverter. Source
- The manufacturer warranty is 10 years, with 70% of original capacity guaranteed at the end of it. Source
- It works with ESY Sunhome's own inverters only. Source
- Listed models are on the Clean Energy Council approved battery list. Source
- Any accredited installer can fit ESY Sunhome under the manufacturer's warranty terms. Source
- The single-phase ESY Sunhome models in this record are on the Clean Energy Council approved battery list, the hardware condition of the federal Cheaper Home Batteries Program. Every listing on that register carries its own expiry date and the residential line is listed under a different model string from the system name on a quote, so it is worth matching the exact string on the register at the time you sign rather than assuming. Source
ESY Sunhome questions, answered
- Who is ESY Sunhome and how established are they here?
- ESY Sunhome is a Chinese manufacturer of all-in-one home storage that opened an Australian office in Sydney in 2023. That is a short history by the standards of the established names, but it has been long enough to build the largest body of owner reviews of any recent arrival covered on this site, and those reviews are broadly positive. Judge it on that evidence rather than on the length of the company history alone.
- Is ESY Sunhome eligible for the federal battery rebate?
- The single-phase models in our record are on the Clean Energy Council approved battery list, which is the hardware gate for the Cheaper Home Batteries Program. Two things are worth checking on this brand specifically: that the quote names the residential line rather than the separate larger family, and that the model string matches the register, because the register uses different names from the sales literature.
- Can I add more capacity to an ESY Sunhome system later?
- Only in the first year. The Australian warranty terms state that capacity expansion is permitted within the first year after initial installation and that expansion beyond one year is not allowed. That is the tightest window of any brand on this site and it makes initial sizing close to a permanent decision. If there is an electric car or a heat pump in your plans, size for it now.
- What do owners actually complain about?
- The recurring themes in SolarQuotes reviews are early firmware that needed a remote update after installation, and app controls around grid export that owners found more limited than expected. One reviewer described poor follow-up from their installer after handover. The reviews are mostly positive overall, so treat these as the specific questions to put to an installer rather than as reasons to rule the brand out.
- Can I use it with the inverter I already have?
- No. The HM6 is an all-in-one: the hybrid inverter is inside the same tower as the battery modules, so there is no version that pairs with another brand’s inverter. On a new solar-and-battery install that is simply the system you are buying. On a retrofit your existing inverter comes out, and that should appear on the quote as its own line rather than being absorbed into a single figure.
- Will it run my house in a blackout?
- The system supports backup and owners specifically mention it working, but as with every brand the circuits it keeps alive are decided by how the changeover is wired, and the inverter output is the same across the whole range regardless of how many modules you buy. So a bigger stack gives you longer, not stronger. Ask for the backed-up circuits by name and check the output against what you expect to run at once.
- Does the tower cope with Australian conditions outdoors?
- It is built for it: a weatherproof rating suited to outdoor mounting, passive cooling with no fans, a wide operating temperature band with performance easing off at the top of it, and a built-in extinguisher. That said, an outdoor rating is a starting point rather than a plan. A position shaded from afternoon sun will keep it out of the derating range far more often than one baking on a west wall.