Car battery: buying a charger (tips)!) find the right charger

Car battery: buy charger

Car owners can charge the car battery themselves with a charger. Photo: imago

A flat car battery is annoying, but it can be recharged with a battery charger. AUTO ZEITUNG gives tips on what car owners should look out for when buying a charger!

If the car battery is empty, vehicle owners can recharge it with a suitable charger. the cost of these little helpers is usually around 100 euros. they save you a trip to the garage and can therefore save you a lot of trouble, time and, if you use them regularly, money too. In general, when buying a charger, make sure that it is designed for a charging voltage of twelve volts, as most car batteries have a voltage at this level. AUTO ZEITUNG provides an overview of the most common functions of chargers for car batteries and tips on purchasing them.
Repair& maintenance

Charging a car battery

Instructions for jump starting in the video:

Buying a car battery charger: these functions are recommended

If you want to buy a charger for charging the car battery, you should make sure that it has several functions. ADAC experts recommend universal, fully automatic chargers that are protected against sparking, short circuits and polarity reversal. Furthermore, an integrated temperature compensation of minus degrees in winter is recommended. Ideally, the charger should also have an automatic switch-off function. Some chargers also have a memory function for safe charging after a power failure, a special mode for AGM batteries or for deep-discharging batteries. ÜBy the way: optimized chargers are now also available for cars that have a start-stop function. To find the right type of charger for your car battery, it is always worth taking a look at the vehicle’s operating instructions.
Repair& maintenance

jump start

Car batteries: buy the right charger here

Car battery: buying a charger (tips)!) find the right charger

Car battery: buying a charger (tips)!) find the right charger

Car battery: buying a charger (tips)!) find the right charger

Mobile charger CTEK CS Free

The first completely self-sufficient mobile 12-volt charger allows a car starter battery to be charged without the need for a power outlet photo: CTEK

New mobile 12-volt charger works completely self-sufficiently

With the CTEK CS free, the swedish charger specialist offers the first- completely self-sufficient- mobile 12-volt charger. This allows a car battery to be recharged properly without a socket connection. So it’s about more than just a jump start. The compact device is hardly bigger than a lunch box and houses a polymer lithium-ion battery with pouch cells. The kind of cells that are used in many current e-cars. With a capacity of 66 watt hours, the energy reserve should be sufficient to make a starter battery fit again. The CETEK CS free works with a current of 20 amps and charges both 12-volt lead-acid (i.e. car batteries) and all conceivable lithium batteries (cell phone, tablet, laptop, etc.).) with a capacity of 10 to 130 ampere hours fully automatically. even deeply discharged batteries can be revived in this way. With the integrated adaptive boost technology, they are supposed to provide enough energy for the first starting process after only 15 minutes. The handling is very easy and self-explanatory. The red plus and black minus terminals are either connected directly to the car’s battery or- if available- connected to the corresponding charging contacts in the engine compartment. Clever electronics ensure that neither arcing nor polarity reversal cause problems. ÜRed LED signals are also used to indicate possible operating errors. Unlike a jump-start power bank, the CETEK CS free not only provides single or multiple support during the starting process, but also actively shovels energy into the car’s starter battery- as well as a charger that is connected to the wall socket. A conventional "mains plug" charge also works with this new swedish development. If the charger is connected to the wall socket via the power supply unit supplied, it recharges the battery in an electronically controlled manner at around five amps. To recharge the built-in charger battery, i.e. the pouch cells, energy can be used both from the 230-volt socket and from the 12-volt car socket (while driving). For an additional 290 euros, there is a special solar panel that collects enough energy during the day to be ready for the next charge. How well this really works will be shown in our field test, which will begin shortly. From 4.March 2021, the CTEK CS free is available for 290 euros, with a matching case costing 69 euros extra.
By holger ippen

Powerbank (jump starter): test

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