Power Supply for Volvo V60 (2020 T4) Config Changes?

[Szigi]

Hey everyone,
I'm getting ready to do some configuration changes on my 2020 Volvo V60 T4. I know it's critical to maintain stable battery voltage to avoid bricking a module, but I want to make sure I have the right equipment.
I currently have a NOCO GENIUS5 (5A), but I'm concerned 5 Amps won't be enough to counteract the car's electrical draw while the ignition is on for an extended period.
My questions for the community are:
Is a 5A charger (like the NOCO GENIUS5) sufficient for simple, quick config changes? My research suggests I need more, but I'd like to hear from those who've done it.
What capacity (Amps) do you recommend for programming/flashing on these cars? I've seen recommendations ranging from a minimum of 20A up to professional units at 55A+.
What specific charger/power supply do you use? Any recommendations for a reliable unit with a dedicated Power Supply (PSU) or Re-flash mode?
I want to avoid a dreaded voltage drop mid-programming! Thanks in advance for the advice!

[jos]

You have the same pain than me :-) also just before the first change and i have concerns how to do it. My charger is just 4A and just for fun i checked my Battery yesterday evening and it was just 12,05V little later 11,95V which is normally near death but i never had any issue with and my new S60 (07/23), so i charged it for 24 hours with my 4A charger and funny it still was just around 12V. Very curios. Maybe my batterie is f***** up it should have around 12,4-12,8V

Anyway from what i know the best is to have the charger not in charging mode, your NOCO has a so called "supply mode" while it acts with a stable current like a normal power adapter and should supply around 13,6-13,8V permanently (no intelligent charging). In my case i also have a laboratory power supply 0-32V 0-20A which i can adjust to my needs.

Till now i don't know what would be the best, i need to add my 4A charger does not have a supply mode, this is why i borrowed me that lab power supply. Just waiting for the go to not damage anything when changing the config.

Well the limiter is currently not so important (we have winter in germany) but i like to get rid of this stupid start/stop joke ;-)
I already discussed this with support and i am sure they think we are much to mimimi

Do not step on the brake while turning the knob and charger connected


Best Regards JOS

[Terence]

I did some measurements by clamp meter for my car which is V90 -17 and it takes about 16A when ignition on and lights off. So I would recommend charger which can give 20A at least. I use Biltema 25A smart charger and it can keep voltage high enough as long as needed. I'm not sure is this charger available in your country, but it is really good value for the money. With 5A charger you really need to hurry to get programming done before voltage drops below 12V. Even with good battery there is not much time.

[jos]

Ok, tomorrow i will connect the lab power supply on 13,6V at 20A and make a read with Orbit to see how the Voltage performs, i am not ready for writing yet.

   

   


Best Regards JOS