Best backup generator UK for the job you actually have
Updated: October 2026
UK round-ups of the best backup generator often open on an Anker or an EcoFlow that is not in this amazon.co.uk set. You still need a pick from the twelve listings we kept, checked against watts and watt-hours in the files from 20 October 2026. Prices run from about £42.79 to £899.99. Products Compared did not lab-test them. A qualifying purchase can earn a commission. The matrix is on the [backup generator comparison](/hub/electrical-equipment/backup-generator). The method is the [backup generator buying guide](/hub/electrical-equipment/backup-generator/sub/backup-generator-buying-guide).
UK round-ups of the best backup generator often open on an Anker or an EcoFlow that is not in this amazon.co.uk set.
UK round-ups of the best backup generator often open on an Anker or an EcoFlow that is not in this amazon.co.uk set. You still need a pick from the twelve listings we kept, checked against watts and watt-hours in the files from 20 October 2026. Prices run from about £42.79 to £899.99. Products Compared did not lab-test them. A qualifying purchase can earn a commission. The matrix is on the backup generator comparison. The method is the backup generator buying guide.
Our top picks
| Badge | Product | Continuous output | Capacity | Waveform | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  FOSSiBOT FOSSiBOT F2400 2,048 Wh | 2,400 W | 2,048 Wh | Pure sine claimed | 9.4 | about £649.00 | View offer |
| Best value |  VTOMAN VTOMAN Jump 600X 268.8 Wh | 600 W | 268.8 Wh | Pure sine claimed | 9.0 | about £239.99 | View offer |
 SinKeu SinKeu R150 99 Wh | 150 W | 99 Wh | Not stated | 7.8 | about £109.99 | View offer |
On this page
Phones, lights, and a router
The Oumefar crank, at about £42.79, makes about 20 W only while you turn it, with no stored capacity stated. The VCLPOWER title says 75 Wh and does not describe an AC socket, so a mains-plug router does not belong on it. Ignore a wattage attribute that says 75 kilowatt hours. If the router needs a mains plug, the MARBERO M82 states 80 W and 88.8 Wh, on a 4.0 from 7,329 line shared with two other ASINs. It is not a fridge plan. The cut itself, including 105, is on backup generator in a power cut.
A laptop, and who should not buy the cheapest AC box
The cheapest AC title is the VTOMAN Jump 100 at about £49.99: 100 W, 89.6 Wh, and 2.9 from 130 UK reviews. One reviewer calls the AC output modified sine. The listing does not state pure sine, so do not treat the low price as a laptop pick. The M82 and the M82 Plus are 80 W continuous, and the M82 Plus prints both 98 Wh and 111 Wh. The M168 Plus states 100 W and then prints 220 V / 60 Hz, against British mains of 230 V at 50 Hz. The SinKeu R150 states 150 W and 230 V / 50 Hz, with 99 Wh. The same UK notes include a short AC runtime, a burning smell, and a unit dead on a first night.
A heavier home load, still not the whole house
Heavier here means a camper hair dryer or a small camping kettle, not heating the house. The Jump 600X at about £239.99 claims 600 W of pure sine and 268.8 Wh, with 4.4 from 473 reviews. It is the best value pick on this shelf. A kitchen kettle is still above 600 W. The Jump 2200 is about £499.99 with no panel, or about £569.99 with a 110 W panel. The FOSSiBOT F2400 is the top pick on a 4.6 line from 346 reviews, with 2,400 W and 2,048 Wh in the title, and its voltage lines disagree.
Who should skip every listing here
Skip the shelf for a 2,000–3,000 W kettle, a heater, or a hard-wired boiler. The larger inverters still stop when the watt-hours are gone. Skip it if someone depends on electricity for medical equipment. Join the Priority Services Register and agree a backup with the equipment provider. Skip a feed into the consumer unit through a wall socket, and skip a brand that is not among these twelve ASINs. Affiliate links use the tag pcuk26-21.
Common questions
Which kept listing is enough for phones and a router?
For USB and bulbs only, the VCLPOWER title’s 75 Wh pack is the phone-and-light option, with no AC socket described. For a router with a mains plug, a small AC box such as the MARBERO M82 or the SinKeu R150 is the relevant class, and the shared MARBERO reviews are not three separate tests. The hand crank does not store an evening of power.
Is the Jump 100 a good cheap pick?
It is the cheapest LiFePO4 listing here with an AC title, at about £49.99 and 89.6 Wh, and the star line is 2.9 from 130 reviews. A UK reviewer called the output modified sine. Units that failed to charge appear in the fault notes. Cheap is not the same as a laptop pick.
When is the Jump 600X the step up?
When 80–150 W is below the appliance and you do not want to spend £500 to £900. At about £239.99 it claims 600 W pure sine and 268.8 Wh, with 4.4 from 473 reviews, and it is the best value pick on that basis. It still shuts down on heavier loads, and a household kettle is outside 600 W.
Jump 2200 station or the same station with the 110 W panel?
They are one station claim, 2,200 W and 1,408 Wh, with one shared 4.3 from 140 reviews. Pay about £499.99 if you will buy solar later. Pay about £569.99 if the 110 W panel must be in the carton. The extra battery is separate on both.
Does the F2400 beat the Jump 2200 on this shelf?
On the printed single-pack figures, yes: 2,400 W and 2,048 Wh against 2,200 W and 1,408 Wh, at about £649.00 against £499.99, with a higher star line. The top pick follows that star score. It does not settle the F2400’s 240 V, 230 V, and 110 V clash, and it does not put a panel in the box.
Who should skip every box here?
Anyone who needs a kettle, a heater, medical cover, or a feed into house wiring. Anyone whose shortlist is a brand that is not among these twelve ASINs. A flat with no outdoor pitch should not plan a petrol set indoors.
Are the 7,329 MARBERO reviews three separate UK tests?
No. The M82, the M82 Plus, and the M168 Plus show the same 4.0 from 7,329 line and overlapping UK review text. Use that sample once. Do not add the counts together.
Related pages
Sources
Public UK sources from the research digest. Shelf prices and star lines are the amazon.co.uk figures in the display file, saved on 20 October 2026.
- Electrical Equipment (Safety) Regulations 2016, regulation 35 (retrieved 20 October 2026)
- GOV.UK plug-in solar consultation (retrieved 20 October 2026)
- SI 2026/848, regulation 2 (retrieved 20 October 2026)
- OPSS product safety report: AFERIY portable power station 2505-0172 (retrieved 20 October 2026)
- OPSS product safety report: VTOMAN FlashSpeed 1000 2506-0145 (retrieved 20 October 2026)
- National Grid: power cut safety (retrieved 20 October 2026)
- National Grid: how to report a power cut (retrieved 20 October 2026)
- HSENI: safety tips for a portable generator (retrieved 20 October 2026)
- Ofgem: Priority Services Register (retrieved 20 October 2026)
- Anker SOLIX UK: portable power station or generator (retrieved 20 October 2026)