AC charge upper limit

Hi all (fonts of all knowledge 😁)
I have my installer coming back at 8.00 in the morning for a domestic wiring issue (probably a failing RCD in the cu), and I need to have the battery at no more than 80% charge so that the EPS works. This is how I can replicate the RCD fault.
Is that just a matter of setting the AC charge limit to 80% ahead of tonight's cheap rate charge in the settings? I can't see a way of doing this via the portal.
Thanks in advance 😉

Coys68 In the schedule settings, in the slot you're using, either set charge to 80% from 100%, or reduce charge time by a few hours so that it naturally reaches desired level.

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Thanks very much - I can see that easily now I am on my computer - the phone screen just too small for my aging mince's!