2017 740i G12 istep

[Tkhemili]

I am planning to update my i-step version of my 2017 G12 7 series with E-sys. I have a battery maintainer. Should this be sufficient?


https://www.manualslib.com/manual/523929...-Xc75.html

[fliyer]

the maintainer needs the supply function with 80 - 100Ah .

this is what i have

https://de.aliexpress.com/item/100500698...pt=glo2deu

[ek1978]

I am planning to update my i-step version of my 2017 G12 7 series with E-sys. I have a battery maintainer. Should this be sufficient?


https://www.manualslib.com/manual/523929...-Xc75.html

This is only a 12V battery charger according to the specs.

You need a good power supply which can provide around 13.5V with nearly 100Ah like the one posted by Fliyer.

There is a big difference between battery charger and power supply. I personally built my own power supply out of 2 powerful Server power supplies , each is 60Ah @ 14V. But ready made ones are all over the internet.

[Tkhemili]

Sounds good. Thanks guys. I will use one of those instead.