Rank #3 in Best Jump Starter 2026: 10 Car Battery Boosters Ranked
NOCO Boost GB70 2000A UltraSafe Jump Starter Power Pack
Price and rating as shown on Amazon when we collected them. Both change.
The NOCO Boost GB70 is a 2000-amp lithium jump starter, and it takes third place in our jump starter ranking. It sits there as the pick for big diesels, vans and 4x4s, on the strength of one number: the listing gives 2000 peak amps, double the output of the GB40 that tops the ranking. Everything on this page comes from the Amazon listing rather than from our own testing — the price, the specification table, the spread of its 30,093 ratings, and two review quotes copied word for word.
One row of that table is worth a second look. It gives the battery capacity as 2000 Amp Hours, but the amperage row and the peak output current row both read 2000 Amps as well, so the same 2000 has landed in the capacity field. Amp hours are not amps, and 2000Ah would be a leisure battery bank rather than a 2 kg pack you keep in the boot. The practical upshot: this listing never actually publishes how much charge the GB70 holds. We have left the row in the specification table exactly as NOCO gives it, labelled as listed, so you can see it for yourself.
How those 30,093 ratings break down
An average hides its own shape. This is the spread behind the 4.6 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Brand | NOCO |
|---|---|
| Model number | GB70 |
| Manufacturer part number | GB70 |
| Peak output current | 2000 Amps |
| Amperage | 2000 Amps |
| Voltage | 12 Volts |
| Battery cell composition | Lithium Ion |
| Battery capacity (as listed) | 2000 Amp Hours |
| Compatible vehicle type | Boat, Moto, Passenger Car |
| Automotive fit type | Universal Fit |
| Item dimensions (D x W x H) | 18.8 x 32 x 9.4 centimetres |
| Item weight | 2 kg |
| Included components | GB70 Jump Starter Power Pack, Microfiber Storage Bag, USB-C Charging Cable, User Guide |
| Number of items | 1 |
| Specification met (as listed) | UL |
| Manufacturer warranty | 1-Year Limited |
| EU spare part availability | 2 Years |
| ASIN | B016UG6PWE |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchaseBest thing I have ever purchased.
“If you are trying to decide whether to spend this amount of money and wondering if it actually works, then I can confirm it does.”
Verified purchaseJust a fantastic piece of equipment that'll give you total peace of mind!
“The Noco GB Genius jump starter pack is unbelievable! With the inbuilt technology, it's impossible to get the polarity wrong as it indicates the incorrect connections and just won't work.”
What it is up against
The rivals it was ranked against in Best Jump Starter 2026: 10 Car Battery Boosters Ranked.
Rank #1
NOCO Boost GB40 1000A UltraSafe Jump Starter Power Pack
£92.19
Rank #2
AstroAI B8 Car Jump Starter Power Pack, 7.0L Petrol / 5.5L Diesel, 329g
£31.99
Rank #4
NOCO Boost X GBX45 1250A Jump Starter, 60W USB-C, 48-Minute Recharge
£118.18
Rank #5
NOCO Boost GB20 500A UltraSafe Jump Starter Power Pack
£71.99
Questions people ask
How much power does the NOCO Boost GB70 put out?
The listing gives 2000 peak amps at 12 volts, from a lithium ion cell. That is double the output of the GB40 at the top of our ranking, which is why the GB70 is the pick for bigger engines.
What is the battery capacity of the GB70?
The listing does not publish a usable figure. There is a battery capacity row, but it reads 2000 Amp Hours, the same 2000 that appears under amperage and under peak output current. Amp hours are not amps, so read that row as the peak output leaking into the wrong field rather than as a capacity.
What vehicles does the listing cover?
The compatible vehicle type field names boats, motorcycles and passenger cars, and the automotive fit type is given as universal. The listing publishes no engine size limits, so it does not tell you the largest engine it will turn.
What comes in the box?
The included components field names four things: the GB70 jump starter power pack, a microfibre storage bag, a USB-C charging cable and a user guide. Jump leads are not named in that field.
How heavy is it and how big?
The specification table gives 2 kg, and the dimensions as 18.8 x 32 x 9.4 centimetres. Those are the figures the listing gives; it does not say whether the 32cm width is the pack itself or its packaging.
What warranty does the listing give?
A 1-Year Limited manufacturer warranty, with EU spare part availability listed as 2 years. The listing also states Specification Met: UL, which is what the page publishes rather than anything we have verified.
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