A mid-size pack with a boost mode for cars, SUVs and gas pickups up to 8 liters. Good if you want a protective case and a trusted brand, but it recharges slowly.
Amazon $99.99
For owners of V8 cars, half-ton pickups and mid-size SUVs who want a light pack that recharges fast over USB-C. It is the sweet spot of NOCO’s Boost X line for most drivers.
- 7.5 L gas, 5 L dieselEngines
- 46 WhBattery
- YesOverride
- 2.6 lbWeight
- 1 yearWarranty
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Starts most V8 cars and trucks up to 7.5 L
- Recharges in a little over an hour on a 60 W USB-C charger
- Can force a jump on a completely dead battery with manual override
- Charges a laptop at up to 60 W
- Costs about $50 more than the GBX45
- Rated only to -4 °F, so it may struggle in deep cold
- One-year warranty is short
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its engine size. How we rank explains each one.
Specifications
| Model number | GBX55 |
|---|---|
| Starting | |
| Rated engines | 7.5 L gas, 5 L diesel |
| Peak amps (maker) | 1,750 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | -4 °F |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 46 Wh |
| USB-C input | 60 W |
| Recharge time | 1.2 hours |
| USB outputs | USB-C 60 W, USB-A 10 W |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Water resistance | IP65 |
| Dimensions | 7.66 x 4.9 x 2.5 in |
| Weight | 2.6 lb |
| Warranty | 1 year |
| Released | 2021-11 |
Alternatives in this engine size
For drivers who want a light pack that handles most cars and V8s for around $110, with a longer warranty than NOCO. Those who need quick recharges should look at a 60 W USB-C model.
Amazon $108.94For drivers of trucks and large SUVs who want a jump starter and tire inflator in one box. The LiFePO4 battery should outlast ordinary lithium packs.
Amazon $169.95Compare
Compare the NOCO Boost X GBX55 with any other jump starter →
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