Battery charging

[FIBAMAN]

Any reason why I cannot charge my battery while it is still connected to the car
Jetta 1.9TDI

[phil miller]

Any reason why I cannot charge my battery while it is still connected to the car
Jetta 1.9TDI

have you tried? some people say it can cause a surge, that could damage your ECU, now most new type chargers have built in surge protectors so there is no reason why you cant charge it whilst connected mate