NOCO Boost X GBX75 Jump Starter Review
A 2,500-amp lithium jump starter for gasoline engines up to 8.5 L and diesels up to 6.5 L, with a 74 Wh battery and 60 W USB-C.
By Watt Versus Editorial· Updated
This page was drafted with AI assistance from manufacturers' specs and manuals, and is checked by our editor.
Our verdict
The Boost X for full-size gasoline trucks and SUVs, and diesels up to 6.5 L, in a pack under 4 lb that recharges in under two hours. Heavy-duty diesel owners should buy the GB150 instead.
Pros and cons
Pros
- Rated for gasoline engines up to 8.5 L and diesels up to 6.5 L
- Full recharge in 1.7 hours from a 60 W USB-C charger, by NOCO's figures
- 400-lumen flashlight and an IP65 housing
- 3.77 lb, lighter than the 4 lb GB70 it outranks on engine size
Cons
- No 12 V accessory output
- NOCO's own support page lists diesels up to 6.0 L, against 6.5 L on the product page and data sheet
- Not rated for the 6.6 L and 6.7 L diesels in heavy-duty pickups; the GB150 is
- 1-year warranty
Specifications
| Peak current | 2,500 A |
|---|---|
| Gas engines | Up to 8.5 L |
| Diesel engines | Up to 6.5 L (product page and data sheet) |
| Battery capacity | 74 Wh |
| USB output | USB-A 5 V, 2.1 A (10 W); USB-C up to 20 V, 3 A (60 W) |
| Recharge time | 1.7 hours at 60 W over USB-C; 20 hours at 5 W |
| Flashlight | 400 lumens |
| Water and dust rating | IP65 with ports closed |
| Weight | 3.77 lb (1.71 kg) |
| Dimensions | 8.4 x 5.4 x 2.5 in |
| Warranty | 1 year |
Who it suits
Owners of full-size gasoline pickups and SUVs, including big V8s up to 8.5 L, and diesels up to 6.5 L. NOCO rates the GBX75 at 2,500 peak amps with a 74 Wh battery that recharges in 1.7 hours from a 60 W USB-C charger, and the same port charges a laptop or phone.
Its closest rival is Fanttik's 74 Wh starter: see GBX75 vs Fanttik T8 APEX.
Who should skip it
Owners of heavy-duty diesels with 6.6 L or 6.7 L engines: NOCO rates the Boost Pro GB150 for diesels up to 7.0 L. If you want a 12 V output to run an inflator, the GB150 and GB70 have one and the GBX75 does not.
What we could not confirm
NOCO's product page and data sheet rate the GBX75 for diesels up to 6.5 L, but the Boost X support page says 6.0 L. We use the product page figure and flag the gap; if your diesel is between 6.0 and 6.5 L, treat the GBX75 as borderline. NOCO publishes no jump-starts-per-charge figure for the Boost X range.
Frequently asked questions
- What size engine can the NOCO GBX75 start?
- Gasoline engines up to 8.5 liters and diesel engines up to 6.5 liters, according to NOCO's product page and data sheet. NOCO's support page lists diesels up to 6.0 liters.
- Will the GBX75 start a 6.7 L diesel?
- It is not rated for it. NOCO rates the Boost Pro GB150 for diesel engines up to 7.0 liters.
- How fast does the GBX75 recharge?
- About 1.7 hours from a 60 W USB-C charger, by NOCO's figures.
Sources
The specifications and claims on this page come from these manufacturer documents. Figures are the manufacturers' own unless the text says otherwise.
Ready to buy the NOCO Boost X GBX75 Jump Starter?
Prices change often. See the current price and availability on Amazon.
Compare and read more
VS comparison
NOCO Boost X GBX75 Jump Starter vs Fanttik T8 APEX 2000A Jump Starter
Two 74 Wh lithium starters rated for gasoline engines up to 8.5 L, both with 400-lumen lights and IP65 housings. They differ on diesel rating, peak amps and USB-C power.
Updated October 24, 2026
Best of
Best NOCO Jump Starters by Engine Size (2026)
NOCO makes the Boost range in sizes for every engine. Here is which one to buy for a motorcycle, a car, a V8 truck or a heavy-duty diesel.
Updated October 24, 2026
Best of
Best Jump Starters by Engine Size and Use (2026)
Seven jump starters from four makers, matched to engine size and how you will use them, from glovebox starters to a shop booster pack.
Updated October 24, 2026
Best of
Best Jump Starters for Trucks and SUVs (2026)
Six lithium jump starters for pickups and SUVs, picked by the engine sizes their makers rate them for, from midsize gas trucks to big diesels.
Updated October 24, 2026