Product Price Battery Capacity (Ah) Peak Current (A) Continuous Current (A) Charging Time (hours) Dimensions (inches (L x W x H)) Weight (lbs) Included Accessories
Antigravity Batteries Micro-Start XP-10
US
£132.81 18000 mAh 600 A 4 - 4.5 hours 9 x 3 x 1.25 in 18 oz Carry case, SMART jumper clamps, 4-into-1 USB cable, universal DC cable, 8 laptop tips, home/wall charger, mobile charger

The Antigravity Batteries Micro-Start XP-10 is a compact lithium jump starter/personal power supply with a 18000 mAh capacity and up to 600 A peak output for jump-starting vehicles. It also powers devices via USB plus 12V and 19V outputs, and includes a built-in flashlight with a charge indicator. Best suited for people who want a small, stored-in-vehicle jump starter that can also function as an everyday power source for electronics.

★ Ideal for

For longest battery life, the XP-10 offers 18000 mAh capacity, which is the capacity spec used to provide more usable starts/charge cycles on a single unit.

NEBO Assist Air 2000XP Jump Starter
US
£169.71 55.5Wh lithium polymer 2000A 7.1 x 4.2 x 2.1in 2.5lb 13in jumper cables, 24in inflator hose extension, inflation needle, long tapered valve, short tapered valve, Presta valve, 12V vehicle to USB-A adapter, USB-A to USB-C charging cord, microfiber carry bag

The NEBO Assist Air 2000XP combines a 2000A jump starter with a 150PSI air compressor, USB power bank, digital display, and emergency floodlight. Its 55.5Wh battery supports up to 45 jumps and suits drivers who want compact all-in-one roadside assistance.

★ Ideal for

It suits the question because its 55.5Wh battery supports up to 45 jumps on a full charge, giving it strong battery endurance while also providing a 150PSI compressor and 2000A starting power.

PowerAll PBJS16000RS PowerAll Professional 600-Amp 12-Volt Portable Car Battery Jump Starter
US
£162.33 16000 mAh 600 Amp 6.7 x 3.1 x 1.25 in 14 oz

This PowerAll jump starter is a compact 12V unit with a 16000 mAh battery and a 600A peak jump-start current for helping start passenger vehicles. It also functions as a power bank with dual 5V/2.1A USB outputs and includes an LED flashlight with torch, strobe, and SOS modes. It suits emergency-car kits and drivers who want a portable, all-in-one roadside companion.

★ Ideal for

It's a strong pick for longest 'battery life' because it has a 16000 mAh battery and a manufacturer-stated standby time of up to 6 months, while the page does not list a separate continuous-output current figure.

NOCO GBX155 Boost X 12V 4250A UltraSafe Jump Starter
US
£272.99 99 Wh lithium-ion 4250A 2.7 hours at 60W 305 x 175 x 69 mm 2.64 kg Heavy-duty jumper clamps, USB-C charging cable, microfiber storage bag, user manual

The NOCO GBX155 is a high-output 12V lithium-ion jump starter delivering 4250A peak current for engines up to 10.0L gasoline and 8.0L diesel. It has a 99 Wh battery, 60W USB-C input and output, a 500-lumen flashlight, spark-proof protection, and reverse-polarity protection. It suits drivers of large cars, trucks, boats, and other demanding vehicles.

★ Ideal for

It suits someone seeking the longest battery life because its 99 Wh lithium-ion battery is the largest in the Boost X range and can retain 70% of its rated capacity for up to one year.

NOCO GBX75 Boost X 12V 2500A Jump Starter
US
£184.44 74 Wh lithium-ion 2500 A 1.7 hours with 60 W USB-C charger 8.41 x 5.4 x 2.52 in 3.77 lb Integrated HD precision battery clamps, 24 in USB-A to USB-C cable, 24 in 12V to USB-C cable, microfiber storage bag

The NOCO GBX75 is a compact 12V lithium jump starter rated at 2500 A, suitable for vehicles with gasoline engines up to 8.5 L and diesel engines up to 6.5 L. It includes USB-C Power Delivery, a 400-lumen flashlight, spark-proof protection, reverse-polarity protection, and fast 1.7-hour charging with a compatible 60 W charger.

★ Ideal for

It suits the question because its 74 Wh internal lithium-ion battery provides substantial stored energy for repeated jump starts and USB-C device charging while remaining compact enough for vehicle storage.

NOCO GB70 Boost 12V 2000A Jump Starter
US
£147.54 56 Watt-Hour Lithium-Ion 2000A Just over 2 hours with 12V fast charging 196 x 152 x 71 mm 4.18 lb HD battery clamps, 48 in Micro USB cable, XGC extension cord with 12V male and female adaptors, owner's manual, microfiber storage bag

The NOCO GB70 is a compact 12V lithium-ion jump starter delivering 2000A peak current for gasoline engines up to 8 liters and diesel engines up to 6 liters. It also includes a 400-lumen flashlight, USB charging, 12V power output, reverse-polarity protection, and support for up to 40 jump starts per charge.

★ Ideal for

It suits the question because its 56 Watt-Hour battery supports up to 40 jump starts per charge, while 12V fast charging restores it from empty in just over 2 hours.

NOCO GBX55 Boost X 12V 1750A Jump Starter
US
£129.10 46 Wh 1750A 1.2 hours 7.7 x 4.9 x 2.5 in 2.58 lb Battery clamps, USB-C to USB-A cable, user manual

The NOCO GBX55 is a compact 12V lithium-ion jump starter rated at 1750A, suitable for gasoline engines up to 7.5L and diesel engines up to 5.0L. It includes USB-C Power Delivery up to 60W, a 200-lumen flashlight, spark-proof protection, and reverse-polarity protection.

★ Ideal for

It suits users seeking a compact jump starter with long battery life because its 46 Wh lithium-ion battery provides substantial stored energy, while the unit can fully recharge in 1.2 hours and supports power-efficient USB-C charging.

NOCO GB40 Boost Plus 12V 1000A Jump Starter
US
£73.75 24 Watt-Hour Lithium-Ion 1000 Amps 3 hours at 2.1 Amps 3.16 in x 7.72 in x 1.71 in 2.45 lbs Heavy-Duty Precision Battery Clamps, USB-C to USB-C Cable, Microfiber Storage Bag, Safety and Warranty Information

The NOCO GB40 is a compact lithium-ion jump starter rated at 1000 amps for 12V lead-acid batteries. It supports gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters, and also includes a 100-lumen flashlight and USB charging.

★ Ideal for

It suits someone asking which compact jump starter has the longest battery life because its 24 Watt-Hour battery supports up to 20 jump starts per charge and recharges in 3 hours at 2.1 amps.