Is it safe to leave the battery connected to the vehicle while charging with the MXS 5.0?
Yes, there is no need to disconnect the battery from the vehicle when charging. The MXS 5.0 delivers exceptionally clean voltage and current with no surges or spikes, protecting vehicle electronics. (Page 2)
From the official Ctek Ctek Mxs 5 0 Battery Charger User manual, page 2
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