Will it start a large diesel truck?

Yes. NOCO rates it at 4250A peak for engines up to 10.0L gas and 8.0L diesel, and owners report starting a 6.7L Power Stroke diesel in -15°F.

How is it different from smaller NOCO jump starters?

It has much higher peak current for big engines, plus a backlit LCD and a 4A smart charger that smaller models lack. The trade-off is size and weight.

Can it charge my phone?

Yes. The dual USB ports work as a power bank for phones, tablets and GPS units.

Does it need a separate charger?

No. It charges through the included heavy-duty clamps with the built-in 4A smart charger, which also diagnoses and maintains a battery.

How long does it hold a charge?

NOCO says it holds charge up to 12 months on standby, so you can leave it in a vehicle between uses.

The jump starter unit and heavy-duty clamps; the 4A smart charger connects through those clamps.

Where is the GBX155 Jump Starter cheapest?

At AltaMoro.usa, for $49.99, as of our latest check.

What do buyers say about the GBX155 Jump Starter?

Rated 4.9 out of 5 from 238 ratings. Buyers like: Cranked a 6.7L Power Stroke diesel on the second try in -15°F; LCD showed battery voltage clearly; Smart charger fixed a battery overnight.

Where can I buy the GBX155 Jump Starter?

2 stores we checked sell it, including AltaMoro.usa, CHALVERO.

GBX155 Jump Starter Price History: Lowest $49.99 at AltaMoro.usa

What reviewers say

4.9 / 5238 ratings

Rated 4.9 out of 5 from 238 ratings. Owners describe it starting big diesel and marine engines in severe cold and praise the LCD and smart charger.

What people mention

Cranking powerPraisedOwners report it starting large diesel truck and boat engines, including a 6.7L Power Stroke in -15°F.
LCD displayPraisedBuyers say the backlit screen shows battery voltage clearly.
Smart chargerPraisedOwners report the 4A charger brought a dead battery back overnight.
BuildPraisedThe water-resistant housing held up to salt spray on boats.
IndependencePraisedBuyers value not waiting for roadside assistance.

From CHALVERO

4250A peak current starts 10.0L gas and 8.0L diesel engines
4A smart automatic charger diagnoses, charges and maintains your battery
Backlit LCD shows voltage, charge percentage, charging mode and fault codes in real time
Dual USB ports double as a power bank for phones, tablets and GPS
Spark-proof clamps with reverse polarity alarm and overcharge protection
Holds charge up to 12 months on standby; drop-proof, dust-proof and water-resistant housing

Sizes: American Standard, Australia Standard, England Standard, European Standard
Materials: High-discharge lithium battery pack; heavy-duty copper clamps and thick silicone cables; reinforced rubberized housing
Fit: Starts 10.0L gasoline and 8.0L diesel engines; suits full-size trucks, heavy-duty SUVs, commercial vans, tractors, boats and RVs
Returns: Returns accepted within 14 days of receiving the order; items must be unused, in original condition and packaging with proof of purchase; customers pay return s
Shipping: Orders prepared and sent to the distribution hub within 48 hours; standard delivery 10-15 business days in North America, 10-12 in western, central and southern
Packs: Buy 1, Buy 2 and Buy 3 bundles offered
In the box: Jump starter unit, Heavy-duty clamps, 4-amp smart charger connection via included clamps

About the GBX155 Jump Starter

The NOCO GBX155 is a portable lithium jump starter with 4250A of peak current. It starts gasoline engines up to 10.0L and diesel engines up to 8.0L. It suits full-size trucks, heavy-duty SUVs, commercial vans, tractors, boats and RVs.

A 4A smart automatic charger diagnoses, charges and maintains your battery. A backlit LCD shows voltage, charge percentage, charging mode and fault codes in real time. The two USB ports let it double as a power bank for phones, tablets and GPS units.

The clamps are spark-proof and have a reverse polarity alarm and overcharge protection. The unit holds its charge for up to 12 months on standby. The housing is rubberized and reinforced, and it is drop-proof, dust-proof and water-resistant.

Peak current: 4250A
Engine size: Up to 10.0L gasoline and 8.0L diesel
Suited for: Full-size trucks, heavy-duty SUVs, commercial vans, tractors, boats, RVs
Battery: High-discharge lithium battery pack
Charger: 4A smart automatic charger that diagnoses, charges and maintains
Display: Backlit LCD showing voltage, charge percentage, charging mode and fault codes
USB ports: 2, for use as a power bank for phones, tablets and GPS
Protection: Spark-proof clamps, reverse polarity alarm, overcharge protection
Clamps and cables: Heavy-duty copper clamps, thick silicone cables
Housing: Reinforced rubberized; drop-proof, dust-proof, water-resistant
Standby charge: Holds charge up to 12 months