Which engines this jump starter can start
NOCO rates the GBX55 at 1,750 amps, which the brand says is enough for gasoline engines as large as 7.5L and diesel engines as large as 5.0L. We'd consider it a strong fit if your vehicle falls within those limits and you want a portable booster rather than a fixed charger.
That rating is the first thing to match against your engine because it determines whether the GBX55 can turn your engine over. If your gas engine is larger than 7.5L or your diesel is above 5.0L, this model is not the right fit.
| Product detail | Value to match to your vehicle |
|---|---|
| Product | NOCO Boost GBX55 1750A UltraSafe Jump Starter |
| Model | GBX55 |
| Color | Gray |
| Size | 1750A |
What it will not do
We would skip this if you expect a jump starter to diagnose a charging fault or fix a dead battery permanently. The GBX55 is a portable boost pack, not a repair tool.
It starts an engine from a depleted battery, and its extra features handle power for other devices. It does not replace a battery charger, tester or alternator diagnosis.
What it does: delivers a jump start rated at 1,750A
What it does not do: diagnose or repair a faulty charging system
What the $139.96 offer means
- Amazon price
- $139.96
- Customer rating
- 4.5
- Customer reviews
- 4369
- Typical price over 90 days
- $171.44
- Difference
- $31.48 (18 percent)
The GBX55 is $139.96 right now. That is $31.48 less than the typical price over the last 90 days, which is $171.44, so the current offer is about 18% below that recent average.
This is a verified price, and the rating sits at 4.5 stars from 4,369 reviews.
The charging and storage checks before you buy
Recharging uses USB-C Power Delivery, and a full recharge takes about 1.2 hours. A five-minute top-up is enough for a jump start even from a completely depleted battery, so confirm you have a USB-C PD source that can deliver the needed power.
The GBX55 is a portable pack, so you need a place to store it in the vehicle, along with its heavy-duty clamps and USB-C cable. Plan for the included microfiber bag in your trunk or cargo area.
The internal 60-second timer limits each boost cycle to conserve power, and the unit can deliver up to 9 jump starts per charge. Think about how you will recharge it after use, especially if you keep it stored for long periods.
Who should choose this jump starter
Choose the GBX55 if your gas engine is 7.5L or smaller, your diesel is 5.0L or smaller, and you want a portable booster that can also charge phones, tablets and laptops through its USB-C PD port.
Skip it if your engine is larger than those limits or if you need a device that identifies why a battery keeps dying. The last check is simple: confirm your engine displacement and that you have a USB-C PD charger for the pack itself.
Specifications
| Model | GBX55 |
|---|---|
| Color | Gray |
| Size | 1750A |
Guides from the desk
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