I’m using a BlueSolar Charge Controller MPPT-150-70. A few months ago I upgraded the software version to 2.05 (from 2.00). The charge algorithm has always been set to ‘USER’, and I have always set the absorption time to 2 hours (flooded lead acid batteries). Since the software upgrade the absorption time varies and it seems the algorithm is adaptive rather than fixed because it is not observing the pre-set absorption time, even though I have selected ‘USER’ and reset the absorption time to 2 hours. Can anyone suggest a possible cause and solution please?
Thanks in advance.