[Cobra86]

Hi,

I don't drive much and I didn't use my car for the last two weeks. Yesterday, I tried to start my car but it won't start then all screens turned off and I couldn't even lock the door using the remote key and I had to lock the car manually.
Right now, all button lights are on all the time including the airbag and SOS buttons.
I put my car battery on charge today but it stuck on stage 2 for about 7 hours so far.

I'm using ctek 5.0 charger and I put it on the car and AGM mode.

Could you please someone help ?

My car is G20 330i 2019.

[bavarianride]

I have used my CTEK 4.3 three times on my 2021 G20 330i without issue. Make sure not to select RECOND mode or else the AGM battery can be damaged.

If your battery is deeply drained, 7 hours on stage 2 may not be bad, just let it plugged in and recheck in the morning.

I think CTEK 5.0 is still 4.3A, so if your 2019 AMG battery is 90Ah(2019 appears to not have dual storage), it will need to charge 23 hours from 0 to 90Ah.

[Cobra86]

Thanks. It didn't charge the battery and I had to call BMW service and they did some testing and they used their charger overnight. this morning they did another check and the battery was only 30% and they decided to replace the battery.