A flat battery often happens at the worst possible moment: just before you leave for work, during a holiday or in a dark car park. With a car jump starter, you can try to start your car yourself in certain situations, without waiting for another car or breakdown assistance.
However, not every portable jump starter is suitable for every vehicle. A high amp rating on the packaging does not tell you everything. You should also check vehicle compatibility, safety features, charge level and how the device should be stored.
A model rated at 2,000A or even 7,000A may appear suitable for every car. In practice, you should also check:
A 12V jump starter is designed for 12V systems. Do not use it with a 24V lorry, bus or other vehicle for which the manufacturer specifies a different system.
A jump starter can help activate a flat battery, but it is not a replacement for a faulty battery or a repair. Some models are not suitable for a completely damaged, leaking or frozen battery. Always check the manual and product specifications before use.
Storage is also important. Lithium batteries lose charge when left unused for long periods. Charging the device periodically, for example every two to three months in accordance with the product instructions, helps keep it ready for use.
A jump starter with compressor, air pump, light and power bank can be useful. However, these features often make a device larger, heavier and more expensive. If you only need a starting aid for a compact petrol car, a simpler model with a clear status display and smart jump leads may be more suitable.
First, check whether the model is suitable for your engine. A jump starter for petrol cars is often specified for a larger engine capacity than the same jump starter for diesel. Diesel engines generally require an appropriate starting capacity according to the product specifications.
Examples from the models available:
This compatibility information comes from the relevant product descriptions. Before buying, also check your vehicle’s manual.
Capacity is usually shown in mAh or Wh. Bear in mind that the stated nominal capacity may be lower than the marketed capacity. For example, the Porbi S306 lists 12,800 mAh, with a stated nominal capacity of 7,200 mAh.
You should also check the connections:
A jump starter power bank is useful when travelling, camping or dealing with a breakdown on the road, but recharge the device after use.
Where possible, choose a model that provides clear warnings when the connection is incorrect. Many products list features such as:
According to the EAFC 2000A product description, several of these safety features are built in. The GOOLOO GP2000 lists ten protective functions. These are claims made in the brands’ product information; use the device only in accordance with the supplied instructions.
The usual procedure is: connect the red clamp to the positive terminal, the black clamp to the negative terminal or a suitable unpainted earth point, then start the car within the period specified by the manufacturer. Do not crank the engine repeatedly for long periods, and allow the jump starter to cool down between attempts.
Why it suits this profile: According to the product information, this compact model weighs approximately 330 grams, making it easy to store in a glove compartment, bag or emergency kit.
The product specification lists not only 1200A peak current, but also a starting current of 600A and support for 12V petrol and diesel vehicles.
Stated battery capacity of 12,800 mAh, USB output, LCD display and LED light with three modes.
Why it suits this profile: The combination of a high stated peak current, smart jump leads and a portable power bank is well suited to motorists looking for extra capacity for SUVs, vans or motorbikes.
The stated compatibility distinguishes between petrol and diesel engines. The manufacturer also describes ten protective functions; always check these in the manual.
2000A peak current, support for up to 8.0L petrol and 6.0L diesel according to the product description, plus a 400-lumen LED light.
Why it suits this profile: According to the product information, this model is designed for intensive use, with a built-in compressor, 160W DC output, multiple charging ports and support for larger diesel vehicles.
According to the manufacturer, the compressor features automatic shut-off, pressure selection and temperature protection. Allow the device to cool down between uses as instructed.
7000A peak current, compressor up to 150 PSI, OBD2 adapter, 2000-lumen light and USB-C PD charging up to 18W.
We have put together a complete, up-to-date list of products that fully meet these strict selection criteria and the applicable European safety regulations.
No. Check the vehicle type, engine capacity and the stated petrol or diesel compatibility. A 12V system does not automatically mean that every jump starter has sufficient starting capacity. Use a model that falls within your car’s specifications.
Follow the manufacturer’s instructions. Various product descriptions recommend charging the device after use and recharging it when it has not been used for an extended period. Check the battery level on the display before setting off.
No. According to the product specifications, a jump starter with air pump can inflate a tyre to a certain pressure, but it cannot repair a puncture. Use the compressor as a temporary solution and have a damaged tyre checked or replaced as soon as possible.