# SKE Mini UPS 20000mAh for Router and Modem

Source: https://www.ranked10.co.uk/tech/best-ups-battery-backups/ske-mini-ups-20000mah
Ranked #7 in "Best UPS Battery Backup 2026: 9 Ranked, and Why 2200VA Isn't 2200W": https://www.ranked10.co.uk/tech/best-ups-battery-backups

- Price: £66.49 (checked on Amazon UK on 2026-09-18)
- Amazon rating: 4.4 from 351 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0CQR5GMN4?tag=ranked10-21

At number 7 in this guide, the SKE Mini UPS is the odd one out: it is the only unit here sold without a VA figure at all. Where the others run from 550 to 2200VA, the SKE listing simply gives a Maximum Power of 20 watts, repeated under Output Wattage and Wattage, and sells the box on battery capacity instead — 20000mAh of lithium. It is a 5V/9V/12V DC device built to sit behind a router or modem, not a mains UPS that can carry a desktop PC through an outage.

That narrow job is where the rest of the listing starts disagreeing with itself. SKE claims the 20000mAh battery will power a router and modem drawing 20W for up to 7 hours; one buyer who took it to a part of Africa with limited electricity reports staying connected for more than 10 hours through an outage, and another ran a router, an analogue telephone adapter and the phones across a 5-hour cut without interruption. The same specification then records the form factor as 'Rack' on a unit measuring 20.6 x 12 x 3.5cm that weighs 0.65kg, and the power plug as Type A, 2 pin (North American) on a product whose own name includes UK. Everything on this page comes from the Amazon listing, not from testing by us.

## Specification

| Field | Value |
|---|---|
| Price | £66.49 |
| Rating | 4.4 out of 5 from 351 ratings |
| Maximum output | 20W, given as Maximum Power, Output Wattage and Wattage |
| Battery | 20000mAh, lithium cell |
| Claimed runtime | Up to 7 hours powering a router and modem at 20W |
| Outlets | 5 ports: USB 5V/2A, DC 5V/3A, 9V/2A and 12V/3A |
| Size and weight | 20.6 x 12 x 3.5cm; 0.65kg |
| Form factor | Rack (as listed) — the unit is a 20.6cm desktop box |

## Questions people ask

**How much power can the SKE Mini UPS deliver?**

The listing gives a Maximum Power of 20 watts and repeats 20 watts under Output Wattage and Wattage. There is no VA figure anywhere in the SKE specification.

**Will it keep my router and modem online during a power cut?**

SKE says the 20000mAh battery can power a router and modem drawing 20W for up to 7 hours, and the unit switches over without interrupting the supply.

**What can I plug into it?**

There are 5 ports: a USB output at 5V/2A and DC outputs at 5V/3A, 9V/2A and 12V/3A, so SKE says it will also charge tablets and phones.

**Does it offer surge protection?**

Yes. The SKE listing states Automatic Voltage Regulation and protection against short circuits, surges and overcharging, and records VDE as the specification met.

**What plug does it come with?**

The specification lists the power plug type as Type A, 2 pin (North American), even though the SKE product name includes UK. Check the plug before ordering.

**How portable is it?**

SKE gives the size as 20.6 x 12 x 3.5cm and the weight as 0.65kg, and describes it as a mini UPS you can carry much like a power bank — though the same listing enters the form factor as Rack.