|
If you never had problems with your battery that was not user fault, or if the battery has already been changed you are good with doing 1.5 hours of writes before putting the battery on the edge
2 min flashes you don't need a battery charger unless you battery really sucks and I don't see that happening if your a Z4 owners
45 min full writes it is recommended to be on a charger. However if you have a healthy battery, lights stay off, you can get by without it.
Two back to back full writes (1.5 hours) put the battery on the edge. 3 back to back fullwrites killed the battery on my Z4
I left the car sit turn off for couple of hours and was able to get it started
|