CATEGORY 03 · 2 FAMILIES · 15 MODELS
Stackable Home Battery Systems, 5.12 kWh to 80.4 kWh
Install the base module now, bolt another one on top next year, and the BMS reconfigures itself. Two voltage classes: 51.2V for the widest inverter compatibility, up to 614.4V for long cable runs and outdoor mounting.
WHAT THIS CATEGORY IS
Sized for the customer who does not know tomorrow’s load
Most residential systems are sized on a guess. The family says they want backup for the fridge and the lights, then a year later they add an air conditioner and the battery is too small. A stacked system answers that with hardware instead of a new quotation: you order one more module, it goes on top of the stack, and the system reconfigures.
Fifteen models across two voltage classes. The 51.2V family goes to 80.4 kWh and works with most 48V hybrid inverters. The high-voltage family goes to 614.4V and 30.72 kWh, which is what you want when the inverter sits twenty metres away or the battery lives outside.
TWO FAMILIES
Low voltage for reach, high voltage for distance
FAMILY 01
Low-Voltage Stacked
5.12 – 80.4 kWh
For installers working with 48V hybrid inverters who want to add capacity a year later without replacing the inverter.
51.2V · 1 to 5 modules · 100Ah and 314Ah module options · 100A continuous · IP20
View family →
FAMILY 02
High-Voltage Stacked Residential
10.24 – 30.72 kWh
For sites where the run from battery to inverter is long, or the unit has to sit outside. Thinner cable, lower current loss, IP55.
204.8 – 614.4V · 2 to 6 packs · 50A peak · IP55 · 600mm wide tower
View family →ALL 15 MODELS
Sorted by energy, both families together
Where two models land on the same capacity, the voltage tells you which inverter they belong to. Read the modules column before the dimensions, because a five-module stack is not the height of one module.
| Model | Voltage | Energy | Modules | Weight | Dimensions (mm) |
|---|---|---|---|---|---|
| LV 51.2V 100Ah | 51.2V | 5.12 kWh | 1 | 46 kg | 440 × 586 × 143 |
| LV 51.2V 200Ah | 51.2V | 10.24 kWh | 2 | 92 kg | 440 × 586 × 143 |
| HV 204.8V 50Ah | 204.8V | 10.24 kWh | 2 | 110 kg | 600 × 630 × 380 |
| LV 51.2V 300Ah | 51.2V | 15.36 kWh | 3 | 138 kg | 440 × 586 × 143 |
| HV 307.2V 50Ah | 307.2V | 15.36 kWh | 3 | 160 kg | 600 × 810 × 380 |
| LV 51.2V 314Ah | 51.2V | 16.08 kWh | 1 | 106 kg | 440 × 742 × 230 |
| LV 51.2V 400Ah | 51.2V | 20.48 kWh | 4 | 184 kg | 440 × 586 × 143 |
| HV 409.6V 50Ah | 409.6V | 20.48 kWh | 4 | 210 kg | 600 × 990 × 380 |
| LV 51.2V 500Ah | 51.2V | 25.60 kWh | 5 | 230 kg | 440 × 586 × 143 |
| HV 512V 50Ah | 512V | 25.60 kWh | 5 | 260 kg | 600 × 1170 × 380 |
| HV 614.4V 50Ah | 614.4V | 30.72 kWh | 6 | 310 kg | 600 × 1350 × 380 |
| LV 51.2V 628Ah | 51.2V | 32.16 kWh | 2 | 212 kg | 440 × 742 × 230 |
| LV 51.2V 942Ah | 51.2V | 48.24 kWh | 3 | 318 kg | 440 × 742 × 230 |
| LV 51.2V 1256Ah | 51.2V | 64.30 kWh | 4 | 424 kg | 440 × 742 × 230 |
| LV 51.2V 1570Ah | 51.2V | 80.40 kWh | 5 | 530 kg | 440 × 742 × 230 |
Low-voltage rows show the single module footprint (W × H × D); a stack adds one module height per step, 143 mm on the 100Ah body and 230 mm on the 314Ah body. High-voltage rows show the assembled tower (W × H × L). Weights are for the complete unit in both cases.
LOW OR HIGH VOLTAGE
The one decision that decides everything else
Pick the voltage first, then the capacity. Get this wrong and the inverter will not accept the pack, no matter how many modules you stack.
| Low-voltage 51.2V | High-voltage 204.8 – 614.4V | |
|---|---|---|
| Inverter you need | Most 48V hybrid inverters already on the market | An inverter rated for the pack voltage, single or three phase |
| Capacity ceiling | 80.4 kWh | 30.72 kWh |
| Current at full load | 100 A continuous | 25 A continuous, 50 A peak |
| Cable run | Short and thick. Keep the battery close to the inverter | Long and thin. Twenty metres is not a problem |
| Where it can sit | Indoors only, IP20 | Indoors or outside, IP55 |
| Adding capacity | One more module on the same stack, up to five | One more pack in the tower, up to six |
| Standby loss | Higher, because the current is higher | Lower for the same load |
BEFORE YOU ORDER
Four questions buyers ask about stacked systems
Can I mix 100Ah and 314Ah modules on the same stack?
No. The BMS is built around one module capacity, so a stack is either all 100Ah bodies or all 314Ah bodies. If you start with a 100Ah stack and later need 314Ah, you are buying a second stack, not an extra module. Decide the module size at the start, because that is the choice you cannot undo.
How much can I add later?
Five modules on the low-voltage stack, which takes a 100Ah system to 25.6 kWh and a 314Ah system to 80.4 kWh. Six packs on the high-voltage tower, capped at 30.72 kWh. In practice the inverter caps you earlier than the battery does: check the maximum battery input on your inverter before you promise the customer a number.
Does the stack need a wall anchor?
It stands on its own base plate with no wall fixing. Above three modules we still recommend an anti-tip strap. A 230 kg tower is stable until someone leans on it, and the strap costs less than the conversation after it falls.
What is the difference between this and your rack-mounted system?
The rack-mounted line is a 19-inch format for integrators building their own enclosure, from 30.72 to 209 kWh. This line is a finished floor tower for a house: it arrives assembled, it has a base plate and a cover, and there is nothing for the installer to wire inside. Same cells, different packaging and a different buyer.
QUICK QUOTE
Send the inverter model, we will confirm the voltage
The fastest way to get a correct answer is to tell us the inverter brand and model, the cable length, and the daily consumption in kWh. We come back with the stack size and a price, usually within 12 hours on a working day.
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