The most useful thing for your trunk before winter. A power bank that can even jump-start a van, now beautifully discounted.

You’re rushing to work in the morning, turn the key, and the car just clicks. A classic scene where you either look for a neighbor with jumper cables or call roadside assistance. You can now buy the Compass Smart Jump Starter with code ALZADNY20 for 1,963 CZK, and it’s a device that allows you to start your car yourself in just a few minutes.

👍 Get it if you have an older car, drive short distances, or leave your car parked – that’s where batteries fail most often.
🤔 Hesitate if you’re mainly looking for a power bank for your phone – with a weight of 1.15 kg and a single USB-A port, it’s more of a tool for the trunk than a companion for your backpack.
💰 Price: 1,963 CZK is a great offer for a device that can charge both your phone and your car.

Two thousand amps can start almost anything

A starting current of 2,000 A is a value with which the device can handle a passenger car, van, motorcycle, ATV, and even a boat – according to the manufacturer, it can even handle a truck. The entire process takes a minute: attach the Smart clamps to the battery terminals, press the button, and turn the key. No searching for a willing driver in the parking lot, no waiting for assistance.

The designation Smart on the clamps is not marketing, but a safety feature. Classic jumper cables hardly forgive one mistake – reversed polarity means sparks and, in the worst case, damaged electronics. Smart clamps handle reverse polarity protection for you, so even a complete novice can start the car without the risk of burning something out.

Beyond jump-starting, it’s a full-fledged power bank with a capacity of 16,000 mAh and a USB-A output, so you can charge your phone, tablet, or headphones – for when you run out of juice on the go. There’s also a 12V DC output for powering car electronics, a display showing the charge status, and an LED flashlight, which comes in handier than it seems when you break down on the road at night. It charges via USB-C.

What to keep in mind so it works when you need it

The most important advice: the jump starter needs to be recharged from time to time. Batteries self-discharge, especially in freezing temperatures – and nothing is as useless as a dead jump starter in your trunk in January when you first need it. The recommended practice is to check the status on the display approximately once every three months.

The second note is about the parameters: the USB-A output is single and with a current of 2 A, so don’t expect fast charging for a modern phone – it will serve as a backup, but not as your main power bank.

Alza also points out one important thing: the battery is covered by a six-month warranty because it is considered a consumable item – the entire device has a standard two-year warranty. On Alza, the product has a rating of 4.7 out of 5, but only from three customers.

Has your car ever failed to start? And how did you deal with it?