
NOCO Boost GB20: 500A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 4.0L Petrol Engines
About this item
- START DEAD BATTERIES — Instantly start dead batteries with 500 amps of peak lithium power. Up to 20 starts per charge on engines up to 4.0L petrol.
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse polarity protection for foolproof connections to any 12V vehicle - no sparks, no wrong connections.
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to smartphones, tablets, and more. Recharges in 3 hours so it’s ready when it matters most.
- INTEGRATED LED FLASHLIGHT — Precision-engineered 100-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
- COMPACT YET POWERFUL — High-discharge lithium technology delivers exceptional starting performance in a compact 2.4 lb form factor - perfectly sized for glove boxes and emergency kits.
- BUILT TOUGH — Rugged IP65-rated housing with rubberized over-molding protects against water, dust, and impact. Includes high-conductivity clamps for maximum energy transfer.
Decent price but not exceptional. Wait for a steeper drop or a voucher.
Price history · 90 days
The green area marks the "deal zone" — below the historical average.
What we like
- +Sparks and reverse polarity are impossible thanks to UltraSafe design
- +Powers 12V petrol engines up to 4.0 litres and offers 20 starts per charge
- +Doubles as a portable power bank for phones and tablets
- +Compact and rugged IP65 housing fits easily in a glove box
- +Charges in three hours via USB-C for fast turnaround
To consider
- −Not suitable for large diesel engines or 24V systems
- −Battery capacity may drop in extreme cold
- −Clamp wires feel short for some engine bay layouts
- −USB-C cable is included but not a fast charger for the unit
The NOCO Boost GB20 is a solid choice for most petrol car owners. It offers reliable starting power, generous safety features, and the convenience of a power bank and torch. At £62.37, the 31 percent saving makes it a compelling buy. It is best for drivers who want a straightforward, compact booster without unnecessary complexity. Skip it if you need to jump-start large diesel engines or require a higher amp model.
Editorial review
Depend on the NOCO Boost GB20 to get you out of a tight spot when your car battery dies. This 500-amp lithium jump starter is designed for 12V petrol engines up to 4.0 litres. It can start a dead battery up to 20 times on a single charge. You no longer need to rely on a second vehicle or bulky cables. The UltraSafe technology means you can connect the clamps without fear of sparks or reverse polarity. It is practically foolproof, even for those who rarely open the bonnet. Beyond jump-starting, the GB20 doubles as a portable power bank. You can recharge smartphones and tablets in an emergency. The integrated 100-lumen LED flashlight offers seven modes, including strobe and SOS. This makes it handy for roadside repairs or signalling for help. The unit charges fully in around three hours via the included USB-C cable. The compact design weighs about 1.1 kg, so it fits neatly in a glove box or emergency kit. The housing is rugged and IP65-rated, protecting against dust and water splashes. The rubber over-moulding also adds impact resistance. The package comes with heavy-duty clamps for efficient energy transfer, a storage bag, and a one-year warranty. At the current price of £62.37, you are saving 31 percent off the original £89.95 list price. This is a genuine discount on a proven piece of kit with over 12,600 reviews and a 4.6-star rating. If you want a reliable and safe jump starter that also serves as a power bank, the NOCO Boost GB20 is a sound investment.
Price trend
This NOCO Boost GB20 usually lists at £89.95, but you can currently grab it for £62.37. That is a 31 percent saving of £27.58 on a top-rated jump starter with thousands of positive reviews. The discount reflects a genuine price drop rather than a fleeting offer, so it is worth snapping up while stocks last.
Frequently Asked Questions
Can the NOCO Boost GB20 start a diesel engine?
It is designed for petrol engines up to 4.0 litres. For diesel, it may only work on very small engines. Check your vehicle's requirements before buying.
How many times can I jump-start a car on one charge?
NOCO states up to 20 jump starts per full charge, depending on battery condition and temperature.
Does it work in freezing weather?
Yes, but lithium battery performance decreases in extreme cold. Keep it charged and store it in a warmer part of the car if possible.
Can I use it as a regular power bank?
Yes. The GB20 has a USB output to charge smartphones, tablets, and other devices in an emergency.
Is it safe to connect the wrong way?
The UltraSafe technology prevents sparks and damage if you accidentally connect the clamps incorrectly. It is designed to be user-friendly.
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