Instagrid ONE (portable power station with high rated power): our review

A job at the bottom of the garden can turn an extension lead into quite a project. With 3600 W of rated output, this station has scope for a demanding appliance, provided its requirements stay below that ceiling. Watts describe how much power you can draw at a given moment; watt-hours describe the stored energy available to draw from. A powerful appliance needs enough of both, for different reasons.

That distinction earns its keep. An appliance can sit within the output limit yet use the reserve quickly. Equipment with a motor adds another consideration because starting demand can exceed running consumption. Compare its startup requirements with the manufacturer's guidance before connecting it. We like the prospect of taking a capable supply down to the workbench. The lawn, however, will still expect you to do the work.

A storm interrupts an evening at home, leaving a laptop with unfinished work and a lamp beside the sofa suddenly rather useful. The 2100 Wh energy reserve puts this battery in territory suited to selected home backup needs or a motorhome. That is a very large store of energy, though usable capacity and appliance consumption determine how far it stretches.

Keep expectations grounded. A demanding appliance takes a larger share of the reserve than modest lighting, even when both fall within the output ceiling. There is no honest universal runtime to attach to the battery. For a motorhome stay, the useful question is which equipment matters through the evening and how much energy it consumes. We consider the ONE well placed overall: its reserve makes a convincing case for readers whose needs extend beyond keeping phones charged. It still calls for priorities during an interruption.

A campsite pitch beyond the car park changes the meaning of portable. At 20 kg, this is a heavy load, and the walk from the car to the tent could become a strain. The carry handle gives you somewhere to grip; it does not shorten the path. Think about steps, gates and the bags you will already be carrying before reserving space in the boot.

Nearer the car looks better. For a motorhome stop, plan somewhere accessible rather than burying the battery behind chairs and bedding. Follow the manufacturers' advice: protect the station from rain and high temperatures, and charge it in a ventilated place. Supplying selected appliances directly is also different from connecting to household wiring. A connection to the home's electrical installation requires an electrician and the equipment specified by the manufacturer, never a makeshift socket connection.

The EZVIZ PS600 is better suited to frequent carrying, with a weight of 6.5 kg that makes regular moves less burdensome. The EZVIZ PS600 also has a similar overall score. Moving between a holiday cabin, the car and an outdoor table gives that carrying advantage a practical reason to matter. A battery that travels with every change of plan needs to earn its place in your luggage.

The ONE makes more sense when a demanding compatible appliance and a large energy reserve matter more than frequent relocation. That is the buying tradeoff we would put first. Bluetooth app connectivity is included, but an app connection tells you less about suitability than your appliance's electrical requirements. Choose the carrying pattern as carefully as the electrical load. A handle is useful; a shorter journey is better.