Equipment
Every system is Growatt — nothing rebadged, nothing generic. Here are the model numbers and the manufacturer's own datasheets, so you can check every figure we quote you against the people who built the thing.
3 kW · one leg · 120 V
8 kW · both legs · 120/240 V
12 kW · both legs · 120/240 V
5.0 kWh · stacking tower
5.12 kWh · wall or floor
Both lines are Growatt LiFePO₂ — the same battery chemistry family, not a safer one and a riskier one. What differs is certification, how they handle a hard power surge, and cost per usable kilowatt-hour.
| Growatt AXE 5.0L-C1 | Growatt Hope 5.0L-B1 | |
|---|---|---|
| Usable capacity | 4.6 kWh per module (92% DoD) | 5.0 kWh per module (98% DoD) |
| Continuous power | 3 kW with one module, capped at 6 kW however many more you stack | 5.12 kW per module, and it keeps scaling with every pack added |
| Surge handling | Up to 11.25 kW sustained for a full 3 seconds — built for hard-starting motors like A/C compressors and pumps | Higher instantaneous peak (~250 A) but only for 150 milliseconds — built for continuous scaling power, not a long overload |
| Certification | UL1973 + FCC listed | Not listed on this datasheet — CE, UN38.3, MSDS, RoHS only |
| Warranty | 5 years standard, 10 optional | 5 years |
| Cost per usable kWh, installed | $6,739 MXN | $4,681 MXN |
| Fits best | Condo, HOA or insured buildings that specify UL-listed storage; systems where a hard-starting compressor or pump needs a long overload window | The 8 and 12 kW systems, and anywhere the goal is the most capacity per peso with no UL requirement in play |
Some condo regimes and HOA insurance policies specify UL-listed battery storage. AXE carries UL1973; the Hope datasheet we have on file does not list one. If your building has that requirement, tell us and we specify AXE — worth confirming with your insurer either way, since coverage terms vary building to building.
The AXE's 6 kW ceiling is the one specification worth reading twice on the other end: stacking more modules buys you longer runtime, never more power. That is why the calculator offers it on the 3 and 6 kW systems and not on the 8 and 12 kW ones — those need the Hope line, which keeps scaling with every pack you add.
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Send a WhatsApp with your town and roughly what you'd like to keep running. We'll tell you what it takes and what it costs — and if a smaller system is the right answer, we'll tell you that too.
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