I use the portal to view the battery percentage and when I view the batteries individually I see they are considerably off. In an attempt to get them to be more sensible I've done a calibration and now the "system" show my battery at 6% but when I view the two individually I get 14% and 19%.
Is this normal because it doesn't seem to make any sense?
Yep normal, my two show combined at 90% at the moment but the 5.2 is showing as 83% and the 2.6 is showing as 90%
The difference is more noticeable at the 4% level as the two batteries don't ever show that low.
Someone smarter will explain it. But you are not alone..
I'd be delighted with a 5% difference.
I regularly see>20% between my twin 8.2s and have seen as much as 40% difference.
Two different issues....
The overall %
The management of two batteries to discharge at a similar speed.
Doing a full discharge to maximum charge tends to keep them instep, but the BMS version makes a difference too...
Lot's of threads on BMS versions.