[HootisTigglebits]

I've seen people say to only use a PSU while coding/flashing while others say it's okay to use a battery charger with the correct specs. I already have a portable jump box and a large battery charger/maintainer/jumper but it doesn't have an AGM setting. If possible I'd like to find a NOCO brand which can both supply the correct power to the car for coding as well as maintain and slow charge a battery.

What amp rating do I need for this and is there anything else I should take into consideration?

NOCO products are currently discounted for Cyber Monday and if they have one that will work I was going to buy it today.

[nazali]

for any serious coding, dont use a battery charger, have been having talks with a tech 2 series are hellish on amp draw, yoiu need a PSU, BARE MINIMUM is 40-45 amps

[nazali]

a BMW tech advised the PM4 series of psu's PSU work differently to a battery charger
ergo battery charger <not the same> as power supply