I have two installations both ESS grid-parallel battery systems both primarily time-shifting off-peak electricity to peak times. Each using multiplus II 48/5000/70 units.
2p16S configuration brand new EVE 230Ah LiFePO4 cells with Daly BMS 250 amp.
However, despite the nameplate capacity being 48V 460Ah for each pack, the actual performance varies considerably with temperature for example. As such I might get 300Ah before the SoC shows as low (I am using 25% SoC as ESS low limit) or I might get 350Ah.
I understand that voltage, on paper, is a more accurate measure of charge, than counting charge in and out (Ah) but under load, it is unreliable as it drops. So we use SoC whilst under load. However, it doesn't seem to be very intuitive or clever.
How is the battery pack in my MG5 LR EV managing itself without what I am having to do - the constant tweaking of the capacity in VEconfigure or the ESS stop on SoC level.
I want to set the thing up and then forget about it.
Also, can someone explain what the adaptive charging in veconfigure is all about?