Quickly and safely jump start gasoline engines up to 10 liters and diesels up to 8 liters with the Noco Boost X GBX155 4259-Amp 12V Jump Starter. No-spark technology and reverse-polarity protection take the worry out of jump-starting. Use the 60-second timer to conserve power—if the engine isn't restarted within that time, the jump starter must be powered off and back on to try again. The GBX155 is also equipped with two USB ports—including a fast-charging 60-watt Type-C—for charging or powering smartphones, tablets, cameras, wearables, etc. The charger itself recharges in as little as 2.7 hours. Finally, the unit is equipped with a 500-lumen light, with six light modes including SOS and strobe.
Quickly and safely jump start gasoline engines up to 10 liters and diesels up to 8 liters with the Noco Boost X GBX155 4259-Amp 12V Jump Starter. No-spark technology and reverse-polarity protection take the worry out of jump-starting. Use the 60-second timer to conserve power—if the engine isn't restarted within that time, the jump starter must be powered off and back on to try again. The GBX155 is also equipped with two USB ports—including a fast-charging 60-watt Type-C—for charging or powering smartphones, tablets, cameras, wearables, etc. The charger itself recharges in as little as 2.7 hours. Finally, the unit is equipped with a 500-lumen light, with six light modes including SOS and strobe.
Quickly and safely jump start gasoline engines up to 10 liters and diesels up to 8 liters with the Noco Boost X GBX155 4259-Amp 12V Jump Starter. No-spark technology and reverse-polarity protection take the worry out of jump-starting. Use the 60-second timer to conserve power—if the engine isn't restarted within that time, the jump starter must be powered off and back on to try again. The GBX155 is also equipped with two USB ports—including a fast-charging 60-watt Type-C—for charging or powering smartphones, tablets, cameras, wearables, etc. The charger itself recharges in as little as 2.7 hours. Finally, the unit is equipped with a 500-lumen light, with six light modes including SOS and strobe.
Quickly and safely jump start gasoline engines up to 10 liters and diesels up to 8 liters with the Noco Boost X GBX155 4259-Amp 12V Jump Starter. No-spark technology and reverse-polarity protection take the worry out of jump-starting. Use the 60-second timer to conserve power—if the engine isn't restarted within that time, the jump starter must be powered off and back on to try again. The GBX155 is also equipped with two USB ports—including a fast-charging 60-watt Type-C—for charging or powering smartphones, tablets, cameras, wearables, etc. The charger itself recharges in as little as 2.7 hours. Finally, the unit is equipped with a 500-lumen light, with six light modes including SOS and strobe.
Last updated at 06/08/2026 14:59:42
NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Leads - for 10.0L Petrol
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NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Leads - for 10.0L Petrol
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Boost X Ultrasafe Jump Starter 2500A 12V
Delivery between 16–19 June $16.65
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Delivery between 16–19 June $16.65
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Delivery $48.89
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Free delivery between Wed – Fri
NOCO Boost X UltraSafe Lithium 4250 Amp Jump Starter - NOCO: X for Extreme - Boost X is the next generation in jump packs with an all-new design ...
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Free delivery between 13–23 June
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Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on bigeasymart.com
Works great. Already used a couple of times on a vehicle with a dying battery. The bypass feature was also required as battery was completely dead. Worked as advertised.
originally posted on halfords.com
We have 2 x GBX155 and a smaller GB40. They are all used daily on a professional basis. The GBX155 is a handy unit and is easily carried compared to most of the old style jump packs. It has yet to be beat and packs plenty of starting punch. The power out and the light are useful also. The smaller unit has struggled on diesels 2.0L plus with really low batteries. The leads could do with being a bit longer also. Go for the biggest one your budget will cover!
originally posted on halfords.com
Not needed to use it yet so cannot comment on how it performs!Although clearly stated in the advertising it is disappointing that you have to buy the box as an extra. I found that the delivery box fits almost perfectly into a 7L widely available plastic box (a really useful discovery)
| Product dimensions | 6.86 x 17.53 x 30.48 cm; 3.18 Kilograms |
| Batteries | 1 Lithium Ion batteries required. |
| Exterior | Machined |
| Bulb Type | LED |
| Amperage | 4250 Amps |
NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Leads - for 10.0L Petrol
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Leads - for 10.0L Petrol
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Noco Boost X Ultrasafe Jump Starter 2500A 12V
Delivery between 16–19 June $16.65
Noco Boost X Ultrasafe Jump Starter 4250A 12V
Delivery between 16–19 June $16.65
NOCO Boost X GBX155 UltraSafe 2.0 Jump Starter
Delivery $48.89
Works great. Already used a couple of times on a vehicle with a dying battery. The bypass feature was also required as battery was completely dead. Worked as advertised.
We have 2 x GBX155 and a smaller GB40. They are all used daily on a professional basis. The GBX155 is a handy unit and is easily carried compared to most of the old style jump packs. It has yet to be beat and packs plenty of starting punch. The power out and the light are useful also. The smaller unit has struggled on diesels 2.0L plus with really low batteries. The leads could do with being a bit longer also. Go for the biggest one your budget will cover!
Not needed to use it yet so cannot comment on how it performs!Although clearly stated in the advertising it is disappointing that you have to buy the box as an extra. I found that the delivery box fits almost perfectly into a 7L widely available plastic box (a really useful discovery)
This thing (Noco GBX155) is 4250 absolutely angry starting amps!... it starts your car/truck with an attitude!.... I have a number of vehicles that just set and I walk around and jumpstart all of them without breaking a sweat with this 4250.... it's design to start my vehicles with no struggling whatsoever! Well worth every last penny so go for it like I did... one of the best investments you can ever make!
I purchased this item as my car and vans at work from time to time need jump starting especially in the cold , iv used it 3 times . Honestly it is amazing it turns the car over like it’s on steroids . Best bit of kit I have bought for a long while. Highly recommend
Does exactly what I bought it for - works great, no regrets on this purchase.1st time buyer from B&H - very impressed with order handling & quick shipping.
Only picked up on Friday, charged up and had to use it on Saturday. worked fantastic.The only thing is it did not come with a 240v USB plug.
This was bought to replace a Noco gb40 to boost start a 2.5tr diesel,Shame I had to go elsewhere to buy the storage case and rapid booster unit
Got a BMW E90 M Sport 2L Diesel parked up for for 15 months. Battery was so flat even the clocks had gone back to factory reset. Bought this Noco, I’ve had other brands of jump starters before and they’ve never started a completely flat battery, this started it better then my BMW battery!! Started it a few times already as It just sits on the driveway as it’s declared off the road. Starts first time every time, even when it was minus 2 and covered in snow!
I am a long distance European Haulage driver operating out of the UK I can be away from home for a period of six weeks at a time. This item was purchased as an upgrade to the preceding model the Noco 150 'Professional'. During the cold snap where the temperatures plummeted to minus -12c my Scania V8 truck batteries were completely flat. A nightmare situation considering the weather conditions and my remote geographical position at the time of the breakdown. The Boost GBX155 brought a seemingly dead truck back to life within seconds without hesitation when turning the ignition key, no spluttering or unwelcome pauses. I have also used this on my own vehicles that often have flat batteries have been laid up for a month and a half waiting for my return.In summary this ... MoreI am a long distance European Haulage driver operating out of the UK I can be away from home for a period of six weeks at a time. This item was purchased as an upgrade to the preceding model the Noco 150 'Professional'. During the cold snap where the temperatures plummeted to minus -12c my Scania V8 truck batteries were completely flat. A nightmare situation considering the weather conditions and my remote geographical position at the time of the breakdown. The Boost GBX155 brought a seemingly dead truck back to life within seconds without hesitation when turning the ignition key, no spluttering or unwelcome pauses. I have also used this on my own vehicles that often have flat batteries have been laid up for a month and a half waiting for my return.In summary this device is a huge upgrade over the other model variants Noco make, easy to carry and relative compact for storing when living space is limited. Would strongly recommend to any professional in transport, car dealerships or anyone wanting peace of mind when needed.Fortune favours the prepared
| Product dimensions | 6.86 x 17.53 x 30.48 cm; 3.18 Kilograms |
| Batteries | 1 Lithium Ion batteries required. |
| Exterior | Machined |
| Bulb Type | LED |
| Amperage | 4250 Amps |
