Qcells Q.HOME CORE G3 Review: Specs, Warranty, Who It Suits

The Qcells Q.HOME CORE G3 is Qcells’ third-generation home battery: one AC-coupled cabinet with 13.12 kWh of LFP storage and 7.6 kW of output, expandable to 26.24 kWh and 15.2 kW with a second cabinet. In May 2026, Qcells announced a US-assembled version built with Jabil in Auburn Hills, Michigan, and said it was commercially available and shipping nationwide. This review uses Qcells’ August 2026 US datasheet, product page and announcement for every figure. We haven’t tested one ourselves.

Q.HOME CORE G3 at a Glance

Qcells’ US product page now features the G3, sold in two versions:

Q.HOME CORE A7.6B13.1: the standard G3.
Q.HOME CORE A7.6B13.1 US.1: the US-assembled version, which Qcells says contains US-made components and non-prohibited foreign entity (non-PFE) content that can help projects qualify for the 10% domestic content bonus on applicable investment and production tax credits. Qcells notes this isn’t tax advice.

The G3 runs in two layouts. Grid Support pairs the battery with Qcells AC modules for time-of-use savings, with no backup hub. Backup adds the Q.HOME HUB G3, which provides outage backup, split-phase power, Storm Protect alerts, generator integration and the option of a second cabinet.

Earlier Q.HOME CORE systems (H- and A-series) paired a Q.VOLT inverter with stacked 5 kWh modules. Those stay under their own 12-year Qcells warranty, while Qcells’ current product page features the G3.

Qcells Q.HOME CORE G3 Specs

Spec	1 × Q.HOME CORE G3	2 × Q.HOME CORE G3
Total energy	13.12 kWh	26.24 kWh
Usable energy (95% DoD)	12.46 kWh	24.92 kWh
Rated output	7.6 kW	15.2 kW
Peak backup, off-grid (10 s)	10.64 kW	21.28 kW
Load start (LRA RMS)	44.3 A	88.7 A
Max continuous battery discharge	7.83 kW	15.66 kW
Round-trip efficiency (system)	89.7%	89.7%
Grid-loss switchover	About 250 ms	About 250 ms

Source: Qcells Q.HOME CORE A7.6B13.1 (US.1) datasheet, Rev16, August 2026. Two cabinets require the Q.HOME HUB G3.

Shared spec	Value
Coupling	AC-coupled, 240 V, 60 Hz
Chemistry	LFP, battery packs by LG Energy Solution
Size and weight	22.4 × 60.0 × 10.4 in; 398 lb complete (four 66 lb battery packs)
Enclosure	IP65 (Type 4); wall or floor mount
Operating temperature	14 to 113 °F
Noise	20 dB(A) or less at 1 m
Solar it can pair with	Up to 44 Q.TRON AC or Q.PEAK DUO AC modules, or third-party PV inverters up to 15.36 kW AC
Operating modes	Self-consumption, time of use, limit export
Monitoring	Q.OMMAND web and app; over-the-air firmware updates
Safety	UL 9540, UL 9540A, UL 1973, UL 1741 (PCS-CRD)
Warranty	15 years or 68 MWh of battery throughput

What the Specs Mean

One size, one step up. The G3 comes as a single 13.12 kWh cabinet. To grow, you add one more for 26.24 kWh, and that needs the backup hub.
95% depth of discharge. Qcells rates 12.46 kWh usable per cabinet, so the gap between total and usable energy is small.
Backup isn’t automatic. In the Grid Support layout without the hub, Qcells says the system doesn’t support off-grid operation. If outage backup matters, make sure the quote includes the Q.HOME HUB G3.
Motor starts. The 10.64 kW, 10-second off-grid peak and 44.3 A LRA set what heavy loads one cabinet can start.

Warranty in Detail

Qcells lists a 15-year product warranty and a 68 MWh battery energy throughput warranty for the G3, with Qcells as the single warrantor for the system. That’s longer than the 12-year standard term on earlier Q.HOME CORE systems. The datasheet doesn’t state an end-of-warranty capacity percentage, so ask for Qcells’ G3 warranty document before you sign.

See how these terms compare in home battery warranties compared.

How It Compares to Powerwall 3, Enphase 5P and FranklinWH

Spec	Q.HOME CORE G3	Tesla Powerwall 3	Enphase IQ Battery 5P	FranklinWH aPower 2
Usable energy	12.46 kWh	13.5 kWh	5.0 kWh	15 kWh
Continuous power	7.6 kW	Up to 11.5 kW	3.84 kVA	10 kW
Coupling	AC-coupled	DC solar input built in	AC-coupled	AC-coupled
Chemistry	LFP	LFP	LFP	LFP
Warranty	15 yr or 68 MWh	10 yr, 70% (US)	15 yr or 6,000 cycles	15 yr or 60 MWh

Figures from each maker’s US documents.

Versus Powerwall 3: similar energy per unit, but Powerwall 3 supplies more continuous power and has a built-in solar inverter. See our Tesla Powerwall 3 review.
Versus Enphase 5P: both are AC-coupled. Enphase scales in 5 kWh steps, while the G3 comes in 13 kWh blocks with a two-cabinet limit.
Versus FranklinWH aPower 2: FranklinWH stores a little more and supplies more power per unit, and it can scale much further. Both carry 15-year terms. Compare more in Powerwall 3 vs Enphase vs FranklinWH.

Who It Suits

Homes buying Qcells AC solar modules that want one brand and one warrantor for panels and battery, as Qcells promotes.
Time-of-use customers, such as those on California’s NEM 3.0, who mainly want to shift solar into the evening.
Third-party-owned (lease or PPA) systems, which Qcells says the US-assembled G3 is built for.

Who Should Look Elsewhere

Homes that need more than 26.24 kWh or more than 15.2 kW from one system.
Buyers who want outage backup but don’t want to pay for the extra hub.

Sizing Example

Illustrative inputs: a home on a time-of-use plan uses 10 kWh between 4 p.m. and 9 p.m., with a 6 kW evening peak.

Energy: 10 kWh ÷ 0.9 (to keep a 10% reserve) = 11.1 kWh, under one cabinet’s 12.46 kWh usable.
Power: the 6 kW peak fits under the 7.6 kW rating.
Backup: if the home also wants outage coverage, add the Q.HOME HUB G3, and consider a second cabinet for long outages.
Solar to refill: about 12.46 ÷ 0.897 ≈ 14 kWh of daytime solar to refill one cabinet from empty, using the system round-trip efficiency as a rough guide.

See how many batteries to power a house for the full method.

Questions to Ask a Qcells Installer

Is this the standard G3 or the US-assembled US.1 version, and does it matter for my financing?
Grid Support or Backup layout? Is the Q.HOME HUB G3 included?
One cabinet or two, and can I add the second later?
Can I see Qcells’ G3 warranty document, including the end-of-term capacity terms?

Price and Incentives

Qcells sells through installers and its EnFin financing arm, and prices vary by layout and electrical work. We aren’t publishing a figure we can’t verify. There’s no 30% federal credit for homeowner-owned systems installed after December 31, 2025 (IRS). The domestic content bonus Qcells mentions applies to investment and production tax credits, which typically involve third-party-owned systems.

Electrical work can be dangerous: follow the manual, fuse and size every cable correctly, and use a licensed electrician for anything connected to household wiring.

FAQ

How much does the Qcells Q.HOME CORE G3 store?

13.12 kWh total and 12.46 kWh usable per cabinet. Two cabinets give 26.24 kWh total.

What is the Q.HOME CORE G3 warranty?

15 years or 68 MWh of battery energy throughput, per Qcells’ datasheet.

Is the Q.HOME CORE G3 made in the US?

The A7.6B13.1 US.1 version is assembled at Jabil’s facility in Auburn Hills, Michigan, per Qcells’ May 2026 announcement.

Does the G3 provide backup power?

Yes, with the Q.HOME HUB G3. Without the hub, in the Grid Support layout, it doesn’t support off-grid operation.

What battery chemistry does the G3 use?

Lithium iron phosphate (LFP), with battery packs made by LG Energy Solution.

Sources: Qcells North America, Q.HOME CORE G3 product page (us.qcells.com/qhome-core-g3), Q.HOME CORE A7.6B13.1 (US.1) datasheet Rev16 (Aug 2026), Q.HOME CORE G3 Grid Support flyer (Apr 2026), and “Qcells Announces Michigan-Based Manufacturing Collaboration with Jabil” (May 7, 2026); Qcells Limited Warranty for Q.HOME CORE (US, earlier systems); Tesla Powerwall 3 Datasheet; Enphase IQ Battery 5P datasheet; FranklinWH aPower 2 datasheet; IRS, Residential Clean Energy Credit. Accessed Oct 2026.