CTEK has a new charge maintainer coming out March 4 that does not need to be plugged in. Details at the link below.

https://www.ctek.com/uk/cs-free-port...ehicle-battery

 

Nice, but isnīt it nothing else like a normal powerbank with start-up function?

 

Supposedly you can connect it to another external battery or solar panels to maintain the battery in your car. Not sure if it will maintain a car battery using only the internal battery in the CTEK CS FREE.

 

"Plug the USBC-C charge cable into your vehicle’s 12V accessory socket and recharge your CS FREE in just 1 hour."

And then you can use the CS FREE to top up your vehicle battery? Mmm, sounds like perpetual energy!

 

Thatīs whatīs interesting for me. My Jag parks in a garage without power supply. In my opinion I canīt use it for maintain without another battery.

Using by connecting only the CTEK to the Jag wonīt work...

In Germany they call € 289 for it!

I better wait for good weather and charge the battery on a road trip.