Why are my batteries absorbing and floating at a temperature much lower than what is set?
I have two strings of 12 volt NC106 batteries, and have them set to absorb at 57.6 V and float at 54.4. They absorb at 56, with a temperature corrected voltage of 56.8 according to the mate. The battery temperature is generally about 31-33 C when they are absorbing and floating, which to me comes out to be a temperature correction of about 1 V max. They should be absorbing then at an uncorrected voltage of 56.6 or higher (when the temperature is lower). Likewise they are floating at about 52.8 V, which also seems too low. In the log files, there are two voltage columns, I think the first is the temperature corrected one, and the second is that very rough (0.4 V increment) uncorrected reading that is shown on the Mate3. There are never readings of more than 56.8 V during absorption and 53.6 for Flotation. Any ideas? The batteries have been in use about 3.5 months