Hi hope it‘s okay to quote a mail from support but this should help a lot:
(FYI, in my case i will use a lab power supply which can deliver up to 20A)
https://imgur.com/a/zz1Cl6C
You may be overthinking it ;-) We have a lot of customers and No cars have been bricked in over 3 years, thousands of cars flashed. One guy flashed a config with the 12V battery at 3% and the car died in the process, I had him connect a charger and when the car came back up we flashed the config again and all was back to good. The 12V automotive stuff is pretty resilient. The config flash is a tiny bit of software and I've found the CEM specifically is indifferent to the voltage, if it's over 11V you can flash it.
Now that I have said that, I use a power supply (because I leave the car connected for long periods). I set it at 14.0V. I think 13.8-14V is good, anything over 12.5V is fine. The car draws between 10-40A when connected to OrBit, depends what it's doing, what mode the car is in as OrBit changes the usage mode as needed. Power supply is the preferred support for diagnostics over a charger. I think the Volvo official requirement for dealers is a 60 or 80A supply, and VIDA will not start a software flash if the low voltage battery is below 12.5V.
But really, if you simply keep the battery from running down, you are not going to have any problem!
(FYI, in my case i will use a lab power supply which can deliver up to 20A)
https://imgur.com/a/zz1Cl6C
You may be overthinking it ;-) We have a lot of customers and No cars have been bricked in over 3 years, thousands of cars flashed. One guy flashed a config with the 12V battery at 3% and the car died in the process, I had him connect a charger and when the car came back up we flashed the config again and all was back to good. The 12V automotive stuff is pretty resilient. The config flash is a tiny bit of software and I've found the CEM specifically is indifferent to the voltage, if it's over 11V you can flash it.
Now that I have said that, I use a power supply (because I leave the car connected for long periods). I set it at 14.0V. I think 13.8-14V is good, anything over 12.5V is fine. The car draws between 10-40A when connected to OrBit, depends what it's doing, what mode the car is in as OrBit changes the usage mode as needed. Power supply is the preferred support for diagnostics over a charger. I think the Volvo official requirement for dealers is a 60 or 80A supply, and VIDA will not start a software flash if the low voltage battery is below 12.5V.
But really, if you simply keep the battery from running down, you are not going to have any problem!