Here I'm trying out my new purchase! The ctek mxs 5.0 battery charger.
I bought it to try and test out why my car batteries were failing after using my old battery charger.
Very interesting results, and I have to say, it is a GOOD purchase. The unit I bought was the 5.0 and is on Amazon: https://amzn.to/2BL17Az

I tried to recover 3 lead acid car batteries that my old charger showed as working/fully charged. The CTEK MXS actually found they needed more charging and recovery, did that and they're holding up well.

NOTE I paid and bought this, it was not sponsored in any way!