Happened it to me few times already.
While doing some work on the car and listening to music for about an hour, battery went dead to the point I had to jump started off another car.
After first occasion, I enabled the battery meter in MMI to monitor the charge on next jobs.
No music but ignition on and it happened again after an hour or so.
If the battery level goes down to a very low level, I start the car and let it running for half to an hour and it charges to about 60%. Next day have no problem to charge the rest of full and continue keep it 100%.
Don't have any drain as even after a weekend parked up, it maintain the same level.
Thinking if the battery health has decreased to a replacement needed level or could a complete drain down and full bench charge up help?
What should I expect from the battery life?
Had the car since 77.5k miles about 3.5 years ago and now 104k and 9 years since first registered.
Doubt the previous owner had it replaced.
Sent from my CLT-L09 using Tapatalk
While doing some work on the car and listening to music for about an hour, battery went dead to the point I had to jump started off another car.
After first occasion, I enabled the battery meter in MMI to monitor the charge on next jobs.
No music but ignition on and it happened again after an hour or so.
If the battery level goes down to a very low level, I start the car and let it running for half to an hour and it charges to about 60%. Next day have no problem to charge the rest of full and continue keep it 100%.
Don't have any drain as even after a weekend parked up, it maintain the same level.
Thinking if the battery health has decreased to a replacement needed level or could a complete drain down and full bench charge up help?
What should I expect from the battery life?
Had the car since 77.5k miles about 3.5 years ago and now 104k and 9 years since first registered.
Doubt the previous owner had it replaced.
Sent from my CLT-L09 using Tapatalk