[Android Head-Units] yvalson:
Hey people,

I have a rather complicated question on which I like some kind of clarification or even a solution.

Some information about my car:

Chevrolet Aveo5 2010 model T250

The manual says it needs a 430CCA battery

I had a Xtrons te706pl px5 head unit installed in my car last summer. It worked great and always got out of the standby mode when starting the car.

Then when it got to the of September/start of october. It started cold booting for some reason.

I didn't think anything of it and thought it was a software related issue. So I bought a small subwoofer

(Kenwood ksc sw11). I then went back to the shop where I got it installed and they updated the unit to the latest Android 9 update at the time (this was mid November). And tested the car battery. Which showed to only have 330 CCA left. They told me that my battery was probably the reason it rebooted all the time. Since that sounded reasonably to me since the manual says I need 430CCA I bought a new battery last week. A 400A (EN) Bosch S3 003.

This actually changed did kind of fix the problem but I'm not sure.

If I drive and then leave my car for a short time and come back the radio will get out of standby fine.

(Which didn't happen with the old battery. That one would restart the radio if I only left my car for like 5-10 minutes)

However when I leave if for like an entire day or over night the radio still reboots.

Sleep setting is set to Auto btw.

I also tested this while disconnecting the subwoofer over night and it still rebooted. So it's not like the subwoofer is the difference.

I have multiple theories and I want to know which one is correct.

1.

The radio is software is broken which causes my radio to not stay in standby for longer than X amount of time even tho the sleep setting is set to Auto.

2.

The cars alternator is broken causing it to not deliver the constant 12v the radio needs.

3. (Which I think is the most plausible)

The car battery doesn't deliver enough Amps on ignition to turn of the engine as well as the radio. Basically cutting of the radio's energy causing it to dip below 10v and causing it to lose power.

The reason that in the summer the radio did turn on with a worse battery might be because the hot temps cause the car to need less Power to start which in turn means the radio isn't cut off of power. (This could explain why the old battery was able to start the radio out of standby modus with in between 330 and 430CCA.

If theory 3 is true then I would need a bigger battery so that even in the colder winter (-3 to 10 degrees Celsius) my radio still boots out of standby. In that case how much CCA and Ah do I need. Since I have a problem because of the ****ty nature of my car where the plus pole needs to be on the left when the poles are facing yourself. I haven't come across a car battery thats the same size as the Bosch S3 003 that I have now but have more than 400CCA)

Wider ones don't fit the plateau which holds the battery. And my connectors for the battery can't reach taller than the 190mm batteries.

If it's not theory 3 but either 1 or 2 then please give me some tips/advice about further actions I could take. Maybe a secondary battery or something I don't know.

Could anyone help me with this problem?

If you need more information I'm more then happy to give it.