hiya...not sure if its any use but yep i have recently been on a massive steep learning curve with an older bmw and one of these new calcium maintennce free batterys etc
so far i have been told that my alternator is just a little bit lower capacity so basically the battery is kinda slowly trickle draining, and then once battery went flat - that my olde fashioned efforts with jump starting and driving for miles to recharge was just a waste time & petrol etc at the moment i am not sure what else may be draining battery but this is my next mission to figure out light bulbs and aerials and everything turn soff properly when car is locked etc
just in case have since learned that a special charger is needed for calcium and while my battery is still showing a green light in the wee window it can still be faulty etc
