I just wondered about the safety of connecting a CTEK MXS 5.0 charger to the BMW X5 engine bay terminals to charge and condition the battery every month or so.

Normally i have removed the Battery completely from the Vehicle and charged it on the workshop bench, then re fitted it.
(I have done this, because of the some of the horror stories i have heard about people killing the Instrument Cluster when Jump Starting etc)

The CTEK puts out 14.7 volts @ 5 Amps for most of its charging cycle
Although its says it can put out 15.8 volts in Desulphation Mode.

Can anyone comment if this is Good Practice to keep our $$$ Batteries in top shape?
Or are there concerns with "In-Vehicle" charging?

Vehicle is driven daily, so it might be a waste of time doing this anyway?

Thank You