Can it jumpstart a 3.2l diesel engine?

I’m not a mechanic but the RAC man who came to my rescue and told me to get one said it would start 5l engines. It has started every vehicle I’ve needed it to no problem so far.

I want to return to amazon (uk). all courier firms i have contacted say they do not accept lithium batteries. has anyone found someone who does?

We contacted Amazon and all the couriers they provided could not ship the return. We did our own research and contacted UPS UK and they were extremely helpful on the phone telling us what needed to be done. Their website instructions were clear and easy to follow. They even called to advise their driver was running late. If you ever need to return batteries in devices like this and you're in the UK, try UPS. Hopefully Amazon will take note of this and get their call centres to advise of useable couriers.

How long are the leads on the GB40?

Not very long, about a foot in old money - you can get an extension if you find that they wont reach comfortably.....

Charged & followed instructions (inc. o/r function) failed to start 2.2ltr engine. pack down to 25% power after 4th attempt. is this a product fault?

I have a Mercedes clc 220 diesel. I fully charged the Noco, connected it and it couldn't start my car. It made a very half hearted attempt to start it. Trying to start it completely drained the noco. It claims to do up to 3 litre diesel but this model isn't man enough for the job

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⚡ Power up your ride & your life—jumpstart confidence in every charge!

COMPACT RUGGED - Lightweight 2.5 lb design with IP65-rated water, dust, and impact resistance—fits glove boxes & adventure kits.
SAFETY FIRST TECH - Patented spark-proof & reverse polarity protection ensures foolproof, worry-free jump starts every time.
LIGHT UP THE NIGHT - 100-lumen LED flashlight with SOS & strobe modes—perfect for roadside emergencies or late-night fixes.
EMERGENCY LIFESAVER - Integrated power bank charges your smartphone & tablet on the go—stay connected when it counts.
INSTANT POWER SURGE - 1000 amps to revive dead batteries up to 6.0L petrol & 3.0L diesel engines—never get stranded again.

The NOCOBoost GB40 is a compact, ultra-safe 1000A lithium jump starter designed for 12V vehicles with engines up to 6.0L petrol or 3.0L diesel. It delivers up to 20 jump starts per charge, features patented spark-proof and reverse polarity protection, and doubles as a portable power bank with a fast 3-hour recharge. Built tough with IP65-rated housing and a versatile 100-lumen LED flashlight, it’s the ultimate emergency companion for professionals who demand reliability and readiness.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

B/.448

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TrustScore 4.5 | 7,300+ reviews

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Customer service was outstanding when I had questions about the product.

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Manufacturer	NOCO
Brand	NOCO
Model	GB40
Product Dimensions	11.71 x 20.8 x 10.69 cm; 1.07 kg
Batteries	Lithium Metal batteries required. (included)
Item model number	GB40
Exterior	Machined
Manufacturer part number	GB40
OEM Part Number	GB40
Bulb type	LED
Special Features	100 Lumen LED Flashlight, 1000A 12V Portable Lithium Car Battery Jump Starter, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection
Amperage	1000 Amps
Item Weight	1.07 kg

NOCOBoost GB40: 1000A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 6.0L Petrol and 3.0L Diesel Engines

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