# NOCO Boost X GBX45 1250A Jump Starter, 60W USB-C, 48-Minute Recharge

Source: https://www.ranked10.co.uk/tech/best-jump-starter/noco-boost-x-gbx45
Ranked #4 in "Best Jump Starter 2026: 10 Car Battery Boosters Ranked": https://www.ranked10.co.uk/tech/best-jump-starter

- Price: £118.18 (checked on Amazon UK on 2026-09-03)
- Amazon rating: 4.5 from 15,015 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B0924V8SPC?tag=ranked10-21

The NOCO Boost X GBX45 is a 12-volt lithium jump starter, and it takes fourth place in our ranking of ten car battery boosters. It sold for GBP 118.18 on the day we collected the listing. Buyers pick this one for the charging rather than the raw grunt: the listing gives a 48-minute recharge over USB-C, and 60W out over USB-C, so it will also feed a laptop. Everything on this page comes from the Amazon listing rather than from our own testing — the price, the specification table, the spread of its 15,015 customer ratings, and two review quotes copied word for word.

One figure is worth reading twice, because the listing gives it twice and gives it differently. The specification table puts Amperage at 1250 Amps, which matches the product title. Further down the same table, Peak Output Current reads 250 Amps, a fifth of that. Battery Capacity then repeats the same 250, quoted as amp hours rather than milliamp hours. Peak amps is the number this whole category gets compared on, so a shopper reading the table instead of the title would take away a very different jump starter. Both values sit in the specification below exactly as the listing publishes them, and nothing there says which row is the mistake.

## Specification

| Field | Value |
|---|---|
| Brand | NOCO |
| Model number | GBX45 |
| Manufacturer part number | GBX45 |
| Amperage (as listed) | 1250 Amps |
| Peak output current (as listed) | 250 Amps |
| Battery capacity (as listed) | 250 Amp Hours |
| Voltage | 12 Volts |
| Battery cell composition | Lithium Ion |
| Compatible vehicle type | Boat, Moto, Passenger Car, SUV |
| Automotive fit type | Universal Fit |
| Item dimensions (D x W x H) | 12.6 x 20.9 x 9.2 centimetres |
| Item weight | 1.2 kg |
| Included components | GBX45 UltraSafe Jump Starter Power Pack, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag |
| Number of items | 1 |
| Specification met (as listed) | Energy |
| EU spare part availability | 2 Years |
| ASIN | B0924V8SPC |

## Questions people ask

**How many amps does the NOCO Boost X GBX45 put out?**

The listing gives two different answers. Amperage reads 1250 Amps, the same figure as the product title, while Peak Output Current, further down the same table, reads 250 Amps. We publish both exactly as listed, because nothing on the page says which one is right.

**How long does it take to charge?**

The listing gives a full recharge in 48 minutes over USB-C. That is NOCO's own figure, taken from the product title, rather than a time we measured.

**Can it charge a laptop?**

The listing gives 60W over USB-C, which covers a lot of USB-C laptops. NOCO sells the GBX45 as a jump starter first, so treat the power delivery as a second job rather than the main one.

**Which vehicles does it cover?**

The specification table names boats, motorbikes, passenger cars and SUVs, with a universal automotive fit. It does not publish an engine size limit, so the table alone will not tell you whether it suits a big diesel.

**What comes in the box?**

The listing names three things: the GBX45 UltraSafe jump starter power pack, heavy-duty jumper cable clamps and a microfibre storage bag.

**How big and heavy is it?**

The table gives 12.6 x 20.9 x 9.2 centimetres and 1.2 kg, so it is glovebox sized and light enough to live in a door pocket.