Hi, I've just started charging my car battery and looking for some advice. The car is a 2014 Fiesta ST and the charger I'm using us a CTEK MXS 5.0 Fully Automatic Charger. The charger has a reconditioning mode which uses a higher voltage of up to 15.8V, and I'm wondering if this is safe because I haven't disconnected the battery from the car - the instructions for the charger didn't mention that.
So I'd just like to know is it safe to use this kind of charging mode while the battery is still connected to the car, or could this cause problems with the car electrics?
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