GREPRO 4000A Jump Starter Power Pack, Emergency Roadside Car Battery Booster Jump Starter for 12V Vehicles, Motorcycle (up to 7.0L Gas, 5.0L Diesel) with LCD Display, LED Flashlight and Carry Bag

4.6

(2,470 reviews →)

|ASIN: B0BBV7KC7Z

-34%32,98 £

Recommended price: 49,99 £

You save 17,01 £ vs RRP

All prices include VAT · updated directly from Amazon

About this item

【Powerful Car Jump Starter】GREPRO jump starter is able to jump start most kinds of 12V vehicles (up to 7.0L Petrol / 5.0L Diesel, Not suitable for electric vehicles) up to more times in a full-charge, works for passenger cars, motorcycle,lawn mower, trailer, snowmobiles etc. Even if the voltage or battery of the car battery is too low, pressing the button on jump leads will force your car to restart. Every driver must to have a battery jump starter in case of emergency situation
【Portable Small Powerbank】Our car jump starter power bank weighs just 0.68 pounds and measures 5.7 × 3 × 1 inches. You can easily hold it in your hand. It provide big capacity power bank with Dual USB Ports to charge phones, tablets, GPS, camera and other devices. It can charge two devices at the same time and come with a USB cable , you can recharge your battery jump starter at home or in car
【Advanced Safety Protection】Upgraded smart jumper clamps with spark-proof technology and ten built-in protection to protect the battery booster jump starter from over current, short circuit, overload, over-voltage, over-charge. Internal lithium-ion cells have UKCA, FC, RoHS and CE certificates. Both will effectively protect you and your car from potential danger and excellent performance even in extreme temperatures (-4°F-131°F)
【LCD Screen and Bright LED Flashlight】Car battery jump starter new-added LCD screen can exactly show the remaining power and built-in LED flashlight with three modes (Bright, Strobe and SOS). This ultra-bright LED flashlight can last up long per full charge. It can help you in any case especially for camping, adventure, outdoor, daily, emergency, travel
【8 What You Get 】1 x Jump Starter, 1 x Smart Jump Clamp, 1 × Portable Carry Bag,1 x USB Cable, 1 x User Manual, 1 × Package Box, 1× 24-Month-W Service and 1x Lifetime Technical Support! GREPRO Car jump starter also a best Christmas or Birthday Present. NOTICE:If the device is not used for a long period of time, we recommend charging it every months to extend the life of the jump starter

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Estimated lifespan

1-3 days

30-day velocity

Stable

Stock claimed

—

Best 90d

32,98 £

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AI Verdict

HOLD

Decent price but not exceptional. Wait for a steeper drop or a voucher.

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0× glitches in 90 days

90 days agoBest: 32,98 £Today

Price history · 90 days

The green area marks the "deal zone" — below the historical average.

Price history · 2 points

Minimo

Media 90gg

Massimo

€32.98

What we like

+Powers most 12V vehicles up to 7.0L petrol or 5.0L diesel
+Lightweight and portable at 0.68 pounds
+Includes smart clamps with spark-proof and multiple protections
+Dual USB ports for charging devices on the go
+LCD screen and LED flashlight with SOS mode

To consider

−Not suitable for electric vehicles
−Requires periodic charging if unused for months
−Battery capacity is modest for larger engines on repeated starts

⚡ Our verdict

The GREPRO 4000A is a solid choice if you need a portable jump starter for occasional emergencies or everyday use. It is compact, safe, and doubles as a power bank. The current price of £32.98 makes it good value for the features offered. Skip it if you have an electric vehicle or require a heavy-duty unit for large commercial engines.

Editorial review

The GREPRO 4000A jump starter is a handy tool for any driver, offering a reliable way to start a flat battery on 12V vehicles such as cars, motorcycles, lawn mowers, and trailers. It works with engines up to 7.0 litres petrol or 5.0 litres diesel, making it suitable for most standard vehicles. At just 0.68 pounds, it is lightweight and compact, measuring 5.7 by 3 by 1 inches, so it fits easily in a glovebox or carry bag.

Beyond jump starting, this device doubles as a portable power bank. It has two USB ports for charging phones, tablets, GPS units, and other gadgets at the same time. The built-in LCD screen clearly shows the remaining battery level, so you always know how much power is left. An LED flashlight with three modes—bright, strobe, and SOS—adds extra utility for emergencies or outdoor trips.

Safety is a key feature here. The smart jumper clamps include spark-proof technology and ten built-in protections against over current, short circuit, overload, over-voltage, and over-charge. The internal lithium-ion cells carry UKCA, FC, RoHS, and CE certificates, ensuring they meet high safety standards. The device also performs well in extreme temperatures, from minus 4 to 131 degrees Fahrenheit.

The current price of £32.98 represents a 34% saving off the original list price of £49.99, which is a genuine discount worth noting. With a 4.6 out of 5 star rating from over 2,470 reviews, this jump starter has proven popular among buyers. It comes with a carry bag, USB cable, user manual, and a 24-month warranty plus lifetime technical support. If you leave it unused for a while, remember to charge it every few months to keep the battery healthy.

Price trend

Priced at £32.98, down from £49.99, this is a 34% discount that has been running consistently. With over 2,470 reviews averaging 4.6 stars, the deal looks genuine. You save £17.01 compared to the original list price, making it a worthwhile buy for a compact jump starter with useful extras.

Frequently Asked Questions

Can this jump starter start a diesel engine?

Yes, it can handle diesel engines up to 5.0 litres. For petrol engines, it works up to 7.0 litres.

How long does the LED flashlight last on a full charge?

The LED can last up to many hours on a full charge, depending on the mode used. The bright mode uses more power than strobe or SOS.

Does the jump starter come with a warranty?

Yes, it includes a 24-month warranty and lifetime technical support from GREPRO.

Can I charge my phone while jump starting a car?

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