12V car battery jump starter & booster
Never get stranded again with Vowenx: portable 12V battery jump starters, boosters with a built-in air compressor, light and USB ports. A selection to restart your car with full autonomy, at a fair price.
« Power bank is OK - recharging the battery. Delivered during 5 work days. »
« It is safe to use, the workmanship is extremely solid, and it is very easy to operate. »
How to choose the right battery booster?
The key criterion is the starting current (peak amps): it must match the engine displacement and fuel type of your engine (a diesel needs more than a petrol). Check the capacity of the internal battery (mAh), which determines the number of starts. Useful features: air compressor for tires, LED light, USB outputs to recharge your devices. Check the safety of the clamps (reverse-polarity protection). Recharge the booster regularly so it stays ready to use.
Related categories:
- Washing and polishing → Washing, polishing & detailing
- Engine parts → Engine & mechanics
- All car maintenance → Maintenance & workshop
The criteria to check before buying
| Criterion | Why it matters? |
|---|---|
| Starting current | Peak amps suited to engine displacement and fuel type. |
| Capacity (mAh) | Determines the number of possible starts. |
| Air compressor | Handy for reinflating tires. |
| USB outputs | To recharge your smartphone and devices. |
| Safety | Reverse-polarity protection. |
Frequently asked questions
Which booster should I choose for my car?
Choose based on engine displacement and fuel type: a diesel or a large engine needs a higher peak current than a small petrol. Also check the capacity (mAh) to ensure several starts.
How do you use a portable battery jump starter?
Connect the red clamp to the + and the black one to the - of the battery, switch on the booster, then start the engine. Then disconnect the clamps. Follow the order and polarity to avoid any short circuit.
Does a booster work on both petrol and diesel?
Yes, as long as its peak current is sufficient. Diesel engines require more power to start: check that the booster covers your engine displacement before buying.