Renting shouldn't mean sitting in the dark during an outage. The catch is simple: you can't rewire the building or bolt a battery to a shared wall. The fix is just as simple — a portable, plug-in battery you charge from any socket and run your essentials off. No landlord, no electrician, no permit. Here's how renters actually do it.
A wall-mounted or stacked home battery (like our HomeWall or HomeStack) must be permanently wired into the distribution panel by a licensed electrician. In a rental that means:
None of that applies to a portable unit. It is a wheeled box you plug into the wall — legally a household appliance, not a building modification.
| Step | Renter action |
|---|---|
| Arrive | Place PowerBox inside your unit, roll it where needed |
| Charge | Plug it into any standard socket — full in a few hours |
| Outage hits | Run fridge, router, lights, phone, CPAP off its outlets |
| Move out | Unplug and take it with you — zero abandonment |
Prioritise the loads that actually hurt during an outage:
| Priority | Load | Typical watts |
|---|---|---|
| 1 | Fridge / freezer (food safety) | compressor cycles, ~50 W avg |
| 2 | Router + phone / laptop | 15–60 W |
| 3 | LED lights | 10–40 W |
| 4 | Medical device (CPAP, oxygen) | 40–150 W |
| 5 | Small AC / fan (heatwave) | 500–1,000 W |
A 4 kWh PowerBox (500 W) runs priorities 1–4 for 12–30+ hours. Add a small AC or longer outage and move to 8 kWh (1,000 W) or 16 kWh (1,500 W). Size precisely with the Home Battery Calculator.
| Spec | PowerBox |
|---|---|
| Capacity | 4.02 / 8.04 / 16.08 kWh |
| Power | 500 / 1,000 / 1,500 W |
| Charging | Wall socket / Solar / Generator |
| Mobility | Wheeled (26 / 57 / 100 kg) |
| Chemistry | 314 Ah LiFePO4 (safe, stable) |
| Certification | CE · UN38.3 · UL · IEC |
A petrol generator is a non-starter indoors — carbon monoxide, fuel storage, and noise complaints in close quarters. A portable LiFePO4 battery is silent, fume-free and apartment-legal. For renters it isn't even a close call.
If you own (or get permission for) a permanent install, see how a fixed no-solar battery sizes and pays back via peak/off-peak arbitrage.
Read the fixed no-solar guide →Yes — with a portable, plug-in unit. Renters cannot modify building wiring or mount a fixed battery on a shared wall, so a wheeled LiFePO4 power station that charges from a standard socket and powers appliances through its own outlets is the only realistic option. It needs no landlord approval and goes with you when you move.
Prioritise: fridge (food safety), router + phone (comms and work), a few LED lights, and any medical device (CPAP, oxygen concentrator). A 4 kWh unit (PowerBox 4.02 kWh) runs those for 12-30+ hours; step up to 8-16 kWh for longer outages or a small AC.
Yes, far safer than a fuel generator indoors. A LiFePO4 unit is fume-free, silent and needs no ventilation for exhaust. Keep it on a hard floor (not a bed), away from direct heat, and never back-feed it into the panel. Choose a unit with CE / UL certification for peace of mind.
Generally no — it is a piece of furniture you plug into an existing socket, not a modification to the building. You are not altering wiring, the panel or the wall. That is the core advantage over a fixed battery, which would require permission and an electrician.
Specs and certification are from the NovaBESS manufacturer catalog; figures are indicative 2026 ranges for planning. A portable unit powers appliances through its own outlets and must never be back-fed into a home panel. Confirm local rules and certification for your market before purchase. Distributors and brand owners: white-label PowerBox is available via OEM/ODM.
Tell us the watts you must keep on and for how long — we'll match the right PowerBox and quote it with the certifications your market requires.
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