Jump Starters
3 products
Buying a jump starter means no more waiting for a neighbor with jumper cables: a compact battery booster that gives your dead car battery enough power to start in seconds — without a second car. At Strex, you can compare a 1000A jump starter for gasoline cars with a 4000A model with a built-in compressor, plus classic 750A jumper cables as a proven backup.
How many amps does your car need?
| Vehicle | Recommended jump starter |
|---|---|
| Gasoline car (small to mid-size) | 1000A jump starter |
| Diesel, SUV, van, or camper | 4000A jump starter |
| Always-in-the-car backup | 750A jumper cables |
The rule of thumb: diesels require more starting current than gasoline engines, and cold weather increases the demand significantly — a battery only provides a fraction of its normal power in freezing temperatures. If you are in doubt or drive a diesel: go for a higher capacity. There is no such thing as a jump starter that is too powerful; the device only supplies what the car demands.
Jump starter or jumper cables: which is smarter?
Jumper cables are indestructible and always work — but only if there is a second car nearby. A jump starter works independently: parking lot, garage, holiday destination at six in the morning. The honest answer is therefore: both. The jump starter for first aid, the 750A cables as a backup that can never run out of power. Together, they weigh next to nothing in the trunk and cover every scenario.
What should you look for when choosing?
- ✔ Starting current (amps) — 1000A for gasoline, 4000A for diesel and large engines
- ✔ Power bank function — the same battery also charges your phone on the go via USB
- ✔ Built-in compressor — the 4000A model also inflates a flat tire; two roadside assistance jobs in one device
- ✔ LED flashlight with SOS — breakdowns rarely happen in the middle of the day in a well-lit spot
- ✔ Storage case — everything together in the trunk, including the clamps
The mistake that makes jump starters unusable: never recharging
A jump starter is a battery — and batteries slowly lose their charge, even when unused. The classic scenario: device bought two years ago, never been on the charger since, and at the crucial moment, the savior itself is empty. The rule to prevent this: recharge the jump starter every three to four months, for example on the first day of each season. Five minutes of attention per quarter is the difference between a gadget and a tool. If your car battery drains by itself more often, the problem is structural — a battery charger or trickle charger keeps the battery at the right voltage at home, and an OBD2 scanner helps you find out why it is draining. You can find more roadside assistance at auto & mobility.
Frequently asked questions
How do you use a jump starter safely?
Red to the positive terminal, black to a ground point or the negative terminal, turn on the jump starter and start the engine — the clamps are protected against incorrect connection and sparking. After starting, disconnect the clamps first and let the engine run so the alternator can recharge the battery.
How many starts does a full jump starter provide?
Multiple starts on a single charge — enough for the situation and a second chance. The exact number depends on engine size, temperature, and how deeply the battery is discharged. More important than the number: keep the device itself charged, then a single start is never a gamble.
Does a jump starter work in freezing temperatures?
Yes — it proves its worth especially in winter, as car batteries fail most often in the cold. It is best to store the jump starter indoors rather than permanently in an ice-cold trunk: a cold battery provides less power, including that of the jump starter itself.
Can I also inflate bicycle tires with the compressor?
Yes, the built-in compressor of the 4000A model inflates bicycle, scooter, and air mattress tires in addition to car tires. Set the desired pressure and the compressor stops automatically — convenient on holiday, where one device replaces the entire list of pumps.
Check out the Strex jump starters and jumper cables — and start the engine yourself from now on, wherever you are.
Want to know more? Read our article "Using a jump starter: step by step".