Pylontech Force H3 vs Force H3X.
One letter apart, and they are not the same kind of product. The H3 is a battery that needs an inverter. The H3X is a battery with the inverter already inside it. Which one suits you is decided almost entirely by whether you already have solar — and by how much storage you think you will want in five years.
Written by Juan Flinn, Content Editor · Reviewed by the Mission Green Energy Team · Updated August 2026
The difference in one line.
The Force H3 is storage only. The Force H3X is storage plus a hybrid inverter, a BMS and an energy manager in one cabinet.
That single distinction drives everything else. If you already own a working solar system with a hybrid inverter that speaks to Pylontech, the H3 bolts storage onto what you have. If you are starting from scratch, or your existing inverter is old and string-only, the H3X replaces the lot with one unit and one commissioning job.
The catch is scale. The H3 runs up to seven modules in a single string. The H3X on single-phase tops out at four modules per group. If you expect to keep adding storage, that ceiling is the thing to think hardest about.
The battery-only system, and how far it scales.
The H3 pairs an FC1000 control module with FH10050 battery modules of 5.12 kWh each. Every module you add lifts both the capacity and the string voltage, from 102.4 V with one module to 716.8 V with seven.
| Modules | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|
| System energy (kWh) | 5.12 | 10.24 | 15.36 | 20.48 | 25.6 | 30.72 | 35.84 |
| System voltage (VDC) | 102.4 | 204.8 | 307.2 | 409.6 | 512 | 614.4 | 716.8 |
| Weight (kg) | 53 | 92 | 131 | 170 | 209 | 248 | 287 |
| Height (mm) | 360 | 530 | 700 | 870 | 1040 | 1210 | 1380 |
Beyond seven modules, you add strings.
Seven modules is the single-string ceiling at 35.84 kWh. Past that the H3 runs up to six strings in parallel, giving 300 Ah of system capacity, with the requirement that every string holds the same battery type and the same number of modules. That is a genuine advantage for a household planning to grow, or for a small commercial site.
The weight is not a footnote.
A seven-module H3 is 287 kg and stands 1,380 mm tall on a 540 × 350 mm footprint. That is a floor-standing appliance, not something to hang on plasterboard, and the slab or footing it sits on needs to be part of the quote. Even a four-module stack at 170 kg deserves a look at the floor before install day.
Rated for 15+ years, certified broadly.
Pylontech lists a design life of 15+ years, 96% efficiency at 0.5C, and an unusually long certification list — UL1973, IEC62619, IEC63056, VDE-AR-E 2510-50, UL9540A and UL9540. UL9540A in particular is the thermal-runaway fire test, and its presence is meaningful for a battery going near a habitable room. The unit is IP65 and rated for −10 to 55 °C, with the BMS throttling power above 40 °C or below 10 °C.
That temperature note matters more in Australia than the number suggests. A battery on an unshaded western wall in Adelaide or Perth will see above 40 °C, and the system will pull its own power back to protect itself — exactly when you wanted it working hardest. Placement is a performance decision here, not just an aesthetic one.
The usable-capacity figures do not reconcile.
Worth flagging plainly, because it changes the maths on your rebate. The Force H3 datasheet states two things that cannot both be true:
- "Usable Energy of the Battery System (kWh)" is listed as identical to system energy — 5.12 kWh for one module, rising to 35.84 kWh for seven. That implies 100% of the pack is available.
- "Usable battery capacity (Ah)" is listed as 47.5 Ah of a 50 Ah module. At the module's 102.4 V, 47.5 Ah works out to roughly 4.86 kWh, not 5.12 kWh.
Both figures appear in the same table, and the "Depth of Discharge (%)" row says 100. The 95% reading is the conservative one, and it is the one we would use when sizing a system or estimating a rebate.
Why it matters: the federal battery rebate is calculated on usable capacity. Across a seven-module string the difference between the two readings is close to 1.8 kWh — enough to move the certificates a system earns. Before signing, ask the retailer which figure their rebate calculation used, and ask to see it. If a quote silently uses the higher number, the rebate in the proposal may not be the rebate you receive.
We have written to note this discrepancy rather than pick a side. If Pylontech clarifies it, we will update this page and log the change in our corrections record.
The all-in-one, and where its ceiling sits.
The H3X folds the battery, BMS, hybrid inverter and energy manager into a single cabinet. On single-phase it comes in four power ratings, each taking one to four of the same FH10050 modules.
| H3X single-phase | FH3X3.6K | FH3X5K | FH3X6K | FH3X8K |
|---|---|---|---|---|
| Nominal power to grid | 3,600 W | 5,000 W | 6,000 W | 8,000 W |
| Max apparent power | 3,600 VA | 5,000 VA | 6,000 VA | 8,000 VA |
| Max continuous current to grid | 15.7 A | 21.7 A | 26.1 A | 34.8 A |
| Peak off-grid (60 s) | 4,320 VA | 6,000 VA | 6,200 VA | 9,600 VA |
| Battery modules | 1 – 4 | 1 – 4 | 1 – 4 | 1 – 4 |
| Capacity range | 5.12 / 10.24 / 15.36 / 20.48 kWh | |||
| Weight (1–4 modules) | 77 / 116 / 155 / 194 kg | |||
Four modules, not seven.
This is the real trade for the convenience of an all-in-one. A single-phase H3X group stops at four modules and 20.48 kWh, where the battery-only H3 keeps going to seven and 35.84 kWh. Pylontech's answer for larger systems is more groups — up to six, for a stated 210 kWh — and the three-phase version accepts seven modules per stack.
For a typical Australian home wanting 10 to 20 kWh, four modules is plenty and the ceiling never comes up. For a household with an EV, a pool and electric heating that expects to keep adding storage, the H3 plus a separately chosen inverter leaves more room.
What the all-in-one actually saves you.
One product to commission, one warranty to chase, one app, one wall. Pylontech quotes 15-minute installation and commissioning for the integrated unit, and automatic paralleling when groups are added. It also supports 100% three-phase load imbalance, which is more useful than it sounds on a rural or older three-phase connection where loads are rarely balanced.
The efficiency figures are 98% maximum and 97.5% European-weighted, with 8,000+ cycles claimed at a 1C rate. It is IP55 and naturally cooled, so it is quiet — but IP55 is a lower ingress rating than the H3's IP65, which is worth weighing if the only mounting spot is genuinely exposed.
The single point of failure question.
Honest downside of any all-in-one: if the inverter section fails, the battery goes with it until the unit is repaired or swapped, because they are the same product. With the H3, a failed inverter is a separate item you can replace without touching the storage. Neither is common. But if you live somewhere where a service call takes weeks, that separation has real value, and no brochure will mention it.
The H3 is unusually powerful for its size — with a footnote.
Capacity tells you how long a battery lasts. Power tells you what it can run. The Force H3 lists a rated DC power of 5.12 kW per module, scaling in step with capacity all the way to 35.84 kW at seven modules.
That is a 1C rate — the pack can deliver its entire stored energy in a single hour. For context, plenty of home batteries sit nearer half that. It means a modest two-module H3 at 10.24 kWh can push 10.24 kW, which is more than most single-phase inverters will ever pass through.
| Current tier (per string) | Amps | At 102.4 V, one module | Time limit |
|---|---|---|---|
| Standard | 10 A | ~1.0 kW | Continuous |
| Rated | 50 A | ~5.1 kW | Continuous |
| Maximum | 55 A | ~5.6 kW | 15 minutes |
Read those three rows before you promise yourself a whole-home backup.
The datasheet separates a standard current of 10 A from a rated 50 A and a maximum 55 A that is explicitly capped at 15 minutes. The headline 5.12 kW figure comes from the rated row, and the 15-minute row exists for short surges — a motor starting, an oven element kicking in — not for a long evening at full tilt.
In practice this is generous, not restrictive. But it does mean the peak number on a brochure is a surge rating with a clock attached, and the honest way to size backup is on the rated figure with headroom, not on the maximum.
How that compares to the alternatives.
Power per kilowatt-hour is where the H3 quietly separates itself. It delivers 5.12 kW from 5.12 kWh. Several popular modular batteries sit closer to 2.5 kW from a similar 5 kWh module — roughly half the power for the same storage. If your reason for buying is a blackout that has to run a ducted system and a kitchen at once, that ratio matters more than the capacity headline.
If your reason for buying is shifting solar into the evening, it barely matters at all, and the extra power is capability you are paying for and will not use. We work through that trade in our AlphaESS SMILE versus Pylontech Force comparison.
H3 vs H3X, side by side.
| Force H3 | Force H3X | |
|---|---|---|
| What it is | Battery only | Battery + inverter + BMS + EMS |
| Needs a separate inverter | Yes, compatible hybrid | No |
| Battery module | FH10050, 5.12 kWh | FH10050, 5.12 kWh |
| Modules per string/group | 1 – 7 | 1 – 4 (single-phase) |
| Max single unit | 35.84 kWh | 20.48 kWh single-phase |
| Expansion beyond that | Up to 6 strings parallel | Up to 6 groups, 210 kWh |
| Inverter power | Whatever you pair | 3.6 – 15 kW |
| Ingress rating | IP65 | IP55 |
| Efficiency | 96% at 0.5C | 98% max / 97.5% weighted |
| Design life / cycles | 15+ years | 8,000+ cycles |
| Best for | Retrofit, or planning to grow | New system, one-box simplicity |
A battery-only system means choosing an inverter too.
The Force H3 is storage. It needs a compatible high-voltage hybrid inverter, and that choice carries as much weight as the battery itself — with three consequences worth understanding before you commit.
The inverter sets your power ceiling, not the battery.
The H3 is capable of 5.12 kW per module, up to 35.84 kW across seven. Almost no residential hybrid inverter will pass that. Pair a seven-module H3 with a 5 kW single-phase hybrid and your backup is 5 kW, because the inverter is the narrower pipe. The battery's generous power rating is only reachable if the inverter can use it.
That is not wasted money if you sized deliberately — headroom means the battery is never the limiting factor and never stressed. It is wasted money if you paid for a large H3 believing the power figure described your house.
Two warranties, two companies.
A battery-only system means the battery warranty is Pylontech's and the inverter warranty belongs to whoever made the inverter. When something misbehaves at the interface between them — communications dropping, charge behaviour that looks wrong, a firmware mismatch — you can find each party pointing at the other. Ask your retailer, before buying, who owns a fault that is not clearly one or the other. A good answer is "we do".
Compatibility is per-model and it changes.
Hybrid inverter support is confirmed per model, not per brand, and support lists get updated as firmware evolves. Get the specific inverter model confirmed as compatible with the specific H3 configuration you are buying, in writing on the quote. "It works with most hybrids" is not a specification.
The H3X sidesteps all three points by integrating the inverter — that is its central advantage. The cost is the 4-module single-phase ceiling and a single point of failure.
Six things to check on a Pylontech proposal.
- H3 or H3X, and how many modules. "Pylontech Force" spans a battery-only line and an all-in-one. The quote should name the configuration — Force-H3-102.4/409.6, or FH3X5K-HY-1P with four modules.
- Which usable-capacity figure fed the rebate. This is the big one on this product. The datasheet gives two irreconcilable answers, and across seven modules the gap is close to 1.8 kWh. Ask which number was used and request the calculation.
- For an H3: which inverter, confirmed compatible in writing. Per model, not per brand.
- Where it goes and what it stands on. A seven-module H3 is 287 kg and 1,380 mm tall. That is a floor-standing appliance and the slab or footing belongs in the quote.
- What is on the backup circuit. Backup is a switchboard wiring decision, not a battery property. Ask which circuits are on the backup side, and on which phases if you are three-phase.
- The CEC listing for that exact model. Rebates are calculated on usable capacity recorded against a specific model number on the approved list at the time of installation.
Temperature is the quiet performance variable.
The H3 is rated from −10 °C to 55 °C, and Pylontech notes the BMS limits charge and discharge power above 40 °C or below 10 °C. In Australia the upper threshold is the one that matters. A battery on an unshaded western wall in Adelaide, Perth or western Sydney will exceed 40 °C on summer afternoons and quietly pull its own power back to protect itself — on precisely the days you most wanted it working.
This is not a Pylontech weakness; every lithium battery derates with heat. It is an argument for treating placement as a performance decision rather than an aesthetic one. Shade, airflow and a south or east wall are worth more to real-world output than another module of capacity.
When we would point you somewhere else.
You want one product, one warranty, one phone number.
The H3 is deliberately two products. If that prospect bothers you, the H3X is Pylontech's own answer — or an all-in-one from another brand, such as Powerwall 3 or SigenStor, both of which include the solar inverter as well.
You are retrofitting to healthy existing solar.
An H3 needs a compatible hybrid inverter, which you may not have. AC-coupled batteries bring their own inverters and leave your solar untouched — Enphase IQ Battery and AlphaESS SMILE M are built for that.
The rebate calculation matters more to you than the hardware.
The unresolved usable-capacity figures make this product harder to price with certainty than most. If you want a clean number, brands that state one unambiguous usable figure are simpler — Sigenergy publishes total and usable separately, and Sungrow names its models by capacity.
Access to the install location is difficult.
287 kg of floor-standing battery is a serious object. A wall-mounted product may simply be more practical where the only viable position is upstairs, on timber, or up a step.
You might not need a battery yet.
If evening usage is modest or the roof has space for more panels, solar often returns more per dollar than storage. We publish how often our advice is that you do not need to spend anything.
Pylontech Force H3 vs H3X
FAQ.
The H3 is storage only and needs a separate compatible hybrid inverter. The H3X is an all-in-one that folds the battery, BMS, hybrid inverter and energy manager into a single cabinet. Both use the same FH10050 5.12 kWh battery module. The practical trade is scale against simplicity: the H3 runs up to seven modules in one string for 35.84 kWh, while a single-phase H3X group stops at four modules and 20.48 kWh.
Up to seven modules in a single string, giving 35.84 kWh, with the string voltage rising from 102.4 V with one module to 716.8 V with seven. Beyond that the H3 supports up to six strings in parallel for 300 Ah of system capacity, on the condition that every string uses the same battery type and the same number of modules.
On single-phase, one group is limited to four FH10050 modules, which is 20.48 kWh. Pylontech's answer for larger installations is more groups — up to six, for a stated 210 kWh — and the three-phase version accepts seven modules per stack. For a typical Australian home wanting 10 to 20 kWh the limit never comes up; for a household planning to keep adding storage, the battery-only H3 leaves more room.
The datasheet gives two figures that do not reconcile. It lists usable energy as identical to system energy — 5.12 kWh per module — while separately listing usable battery capacity as 47.5 Ah of a 50 Ah module, which at 102.4 V works out to roughly 4.86 kWh. Across a seven-module string the gap is close to 1.8 kWh. Because the Australian federal battery rebate is calculated on usable capacity, ask your retailer which figure their rebate calculation used. The 95% reading is the conservative one.
The datasheet lists a rated DC power of 5.12 kW per module, scaling with capacity to 35.84 kW at seven modules — a 1C rate, meaning the pack can deliver its entire stored energy in one hour. Note the three current tiers: a standard 10 A, a rated 50 A, and a maximum 55 A that is explicitly limited to 15 minutes. The headline power figure comes from the rated row; the maximum is a surge rating with a clock attached, so size backup on the rated figure with headroom.
From 53 kg with one module to 287 kg with seven, rising roughly 39 kg per module. A seven-module stack stands 1,380 mm tall on a 540 by 350 mm footprint, making it a floor-standing appliance rather than a wall-mounted one, so the slab or footing should be part of the quote. Even a four-module stack at 170 kg warrants checking the floor before install day.
The H3, in almost every case. If you already have solar with a compatible hybrid inverter, the H3 adds storage without paying for a second inverter to sit beside a working one. The H3X makes more sense when the existing solar is old and string-only, or when there is no solar yet, because then one cabinet replaces the whole chain with a single commissioning job.
The H3 is IP65 and the H3X is IP55. IP65 offers better protection against water ingress, so if the only viable mounting position is genuinely exposed, that difference is worth weighing. The H3 is also rated for minus 10 to 55 degrees, with the BMS reducing charge and discharge power above 40 degrees or below 10 — which matters in Australia, because a battery on an unshaded western wall will hit that threshold on the days you want it working hardest.
Because the H3X integrates the inverter and battery into one product, an inverter fault takes the storage offline with it until the unit is repaired or replaced. With the H3, the inverter is a separate item that can be swapped without touching the battery. Neither failure is common, but where service calls take weeks the separation has genuine value, and it is not something a brochure will raise.
A compatible high-voltage hybrid inverter, confirmed per model rather than per brand, and the choice matters as much as the battery. The inverter sets your real power ceiling: the H3 is capable of 5.12 kW per module and up to 35.84 kW across seven, but almost no residential hybrid will pass that, so a seven-module H3 behind a 5 kW single-phase hybrid backs up 5 kW. Get the specific inverter model confirmed compatible in writing, and ask who owns a fault that sits at the interface between two manufacturers' products.
Yes, and it is worth planning for. The Force H3 is rated from minus 10 to 55 degrees, and Pylontech notes the BMS limits charge and discharge power above 40 degrees or below 10. In Australia the upper threshold is the one that bites: a battery on an unshaded western wall in Adelaide, Perth or western Sydney will exceed 40 degrees on summer afternoons and pull its own power back to protect itself, on precisely the days you wanted it working hardest. Every lithium battery derates with heat, so placement is a performance decision rather than an aesthetic one.
So which Pylontech should you buy?
You already have solar with a compatible hybrid inverter: the H3. You are buying storage only, and there is no sense paying for a second inverter to sit next to a working one.
You have old string-only solar, or none at all: the H3X. One cabinet, one commissioning, one warranty path.
You expect to keep adding storage: the H3. Seven modules in a string against four gives you somewhere to go, and multi-string parallel operation goes further again.
You want the smallest, quietest, simplest install: the H3X, provided 20.48 kWh covers you on single-phase.
You are on three-phase with unbalanced loads: the H3X three-phase, which supports 100% load imbalance and takes seven modules per stack.
Service is slow where you live: lean H3. Separating battery from inverter means one failure does not take both offline.
Whichever way you go, ask the retailer to write down the usable capacity they used for your rebate calculation, and which datasheet figure it came from. On this product that question has two possible answers, and only one of them is conservative.