BCM update turns car into 2005 Escort.

[Cipis]

Some functions goes "sleep" when the battery reaches "low" levels (you can check in the app).
I can assure you that after a week or more sitting in the garage the battery voltage is a WAY lower than after have a run on the highway for an hour or more and come back (measured).
So what I've said above, it's what happening to me: losing the "galopping" sound randomly, or to be exact, it uses a logic that may be related to the battery (or anything else) but not immediately understandable, it's not: if battery V < X then disable it; when the battery V return above X re-enable it.

Well if the battery is aging it takes longer time to charge it as these batteries and smart live systems of recharging are different than in old cars. What I am saying is that if the car is cranked and all the electronics in it, it is absolutely possible even after longer drive you mentioned, you are left with lesser voltage in battery after leaving a garage. Especially if you had some prior stops or auto stop start on. I do not want to argue, just would also recommend to have the battery checked to eliminate what was previously said here.

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[GrabThatBlue]

Do you know that the battery has much higher battery charge level before start after sitting many days than after the start and driving 30 minutes? So logic yet not understanding. So yes. The battery is much stronger before you take your car out for drive….

So you say the battery has more charge when the car is sitting for a week than when driving it?

 

[Cipis]

So you say the battery has more charge when the car is sitting for a week than when driving it?

I am saying yes, the battery logically has more charge before driving. That makes sense. Doesn’t it? And 30 min drive in little aged battery does not do enough to even place the battery in the same level prior to first start up. Let say you have 2 years old battery and you start it every 1 week driving just around the town. That is just battery killer. Not enough. So every time you start the car you are off with low battery at the beginning right when driving off. You better not to start the car at all or just drive it long enough to recharge properly. The older the bat is, the faster crank up takes the energy down, the longer the car takes to recharges. Not talking in additional stops / and start cranks. For new batteries it is fine, aged batteries will suffer from any discharge beginning at cranking…. Therefore every time you start the car you are beginning with lower bat voltage at first place, not cranking = higher voltage in battery = sitting alone in garage. Modern cars shuts off the pc and other staff you call sleep mode. Back in a day you come to car after week and have no power. That is not the case today unless you have faulty or played with electronics or settings. So one crank with these computers alive will take a lot of energy from these massive modern batteries none comparable to decade ago. Those would die in weeks. These modern batts last long today, but once out of full capacity due to aging, everything goes multiple times against the heavy requirements of the car electronics drawing energy. So … Yes. The car has definitely more energy before driving. Always. It is just matter of time if you are able to recharge it from car by long enough drive. The age of battery will prolong this formula dramatically.

 

[GrabThatBlue]

I am saying yes, the battery logically has more charge before driving. That makes sense. Doesn’t it? And 30 min drive in little aged battery does not do enough to even place the battery in the same level prior to first start up. Let say you have 2 years old battery and you start it every 1 week driving just around the town. That is just battery killer. Not enough. So every time you start the car you are off with low battery at the beginning right when driving off. You better not to start the car at all or just drive it long enough to recharge properly. The older the bat is, the faster crank up takes the energy down, the longer the car takes to recharges. Not talking in additional stops / and start cranks. For new batteries it is fine, aged batteries will suffer from any discharge beginning at cranking…. Therefore every time you start the car you are beginning with lower bat voltage at first place, not cranking = higher voltage in battery = sitting alone in garage. Modern cars shuts off the pc and other staff you call sleep mode. Back in a day you come to car after week and have no power. That is not the case today unless you have faulty or played with electronics or settings. So one crank with these computers alive will take a lot of energy from these massive modern batteries none comparable to decade ago. Those would die in weeks. These modern batts last long today, but once out of full capacity due to aging, everything goes multiple times against the heavy requirements of the car electronics drawing energy. So … Yes. The car has definitely more energy before driving. Always. It is just matter of time if you are able to recharge it from car by long enough drive. The age of battery will prolong this formula dramatically.

After sitting for a week, the battery is discharged. When driving the car, the battery starts charging again. The car battery does not have more charge after sitting still for a week compared to the same battery after driving 30 minutes.

 

[Cipis]

After sitting for a week, the battery is discharged. When driving the car, the battery starts charging again. The car battery does not have more charge after sitting still for a week compared to the same battery after driving 30 minutes.

how do you know that? Would you be able to drive the car if the battery is low, if not cranked? Maybe, once you crank the car, battery goes so low in bad/low battery state or aged battery that after 30 minutes you will struggle to start the engine again. Every time you start the car you take a lot of energy out of the battery, the older the battery the longer time it pulls the energy back from alternator into it. Don’t be confused by losing battery voltage through insufficient el. system in old car drawing the bat to 0 in week. I am talking about car not drawing much over weeks like in stung, than you crank it up, well you have low battery immediately if the battery is aged, right after start up. And sometimes 30 minutes is not even enough to replenish one crank start up.

 

[GrabThatBlue]

how do you know that? Would you be able to drive the car if the battery is low, if not cranked? Maybe, once you crank the car, battery goes so low in bad/low battery state or aged battery that after 30 minutes you will struggle to start the engine again. Every time you start the car you take a lot of energy out of the battery, the older the battery the longer time it pulls the energy back from alternator into it. Don’t be confused by losing battery voltage through insufficient el. system in old car drawing the bat to 0 in week. I am talking about car not drawing much over weeks like in stung, than you crank it up, well you have low battery immediately if the battery is aged, right after start up. And sometimes 30 minutes is not even enough to replenish one crank start up.

When driving your car gets charged. When not driving your car doesn't get charged and instead loses charge every single day.

So yes. After a week your car has less charge than the same battery after driving it for 30 minutes.

 

[Cipis]

When driving your car gets charged. When not driving your car doesn't get charged and instead loses charge every single day.

So yes. After a week your car has less charge than the same battery after driving it for 30 minutes.

I wont argue with that. I know a lot about modern batteries and smart charging systems. It is as I said especially if the battery is aged.

 

[GrabThatBlue]

I wont argue with that. I know a lot about modern batteries and smart charging systems. It is as I said especially if the battery is aged.

Batteries can be smart, but they are not smart enough to charge itself while standing still in a vehicle for a week.

 

[npole]

Btw, it wasn't just for 30 minutes, I've posted what's happening in a multiple set of combinations, even after have driven for hours on the highway. The most odd one was: car sitting in the garage for a week, no sound, moved for 200m to the washer (it's just next to my house), the sound returned, got it back from the washer, sound still there, drive for a couple of hours, no sound on back... and so on. It is so random that I've gave up to understand the logic (and it all happened after an update, before I never lost that sound... maybe it's linked to the "battery management" they introduced in that patch, but surely not connected to the battery "status" or how much "charged" it is).

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