battery performance testing

[briac]

hi,
I have an surprise on my battery performance testing:
at the first time I power off the panel I have about 24.64 VDC on the batt;
then after 30 mn the value increase to 24.96;

but somewere in another place it is the opposite.

do someone have an explination about that?

thanks by advance,

[Leo]

maybe the charging voltage is bad and only charging at 24.64
the FA panel should charge around 26-27 volts.
when you remove power the batteries should be around that voltage at least for a few minutes even if the batteries are going bad.

[briac]

thanks Leo