The same all-in-one arrangement as the 20kWh unit, at a quarter of the storage. This is the sensible size when the goal is keeping essential circuits alive rather than running the whole house.
Specification
| Usable energy | 5120Wh (5.12kWh) |
|---|---|
| Battery | 51.2V · 100Ah |
| Output | 3kW, pure sine wave |
| Format | Compact mobile unit |
Choosing between 5kWh and 20kWh
The deciding question is not the price difference — it is whether air conditioning is on your list. Lights, fans, fridge, router, phone charging and a TV sit comfortably inside 3kW and will run for many hours on 5kWh. One air-conditioning unit changes both figures at once: it pushes the continuous draw up and drains the stored energy far faster.
Send us a list of what must stay on during an outage and we will tell you which side of that line you fall on.
Send us the voltage, capacity, discharge current and the space you have — or a photo of the battery you are replacing. We will come back with a specification and a price.