Temperature Compensation - Victron energy MPPT 150/60-MC4 Manual

equalisation voltage and the second is on fixed time, where the maximum equalisation duration is
used.
Maximum equalisation duration
Set the maximum time that the equalisation phase will last.
Tail current
Set the current threshold that will be used to finish absorption phase before the maximum absorption
time expires. When the battery current gets below the tail current for one minute, the absorption
phase will end. This setting can be disabled by setting it to zero.

Temperature compensation

Many types of battery require a lower charge voltage in warm operating conditions, and a higher
charge voltage in cold operating conditions.
The configured coefficient is in mV per degree Celsius for the whole battery bank, not per cell. The
base temperature for the compensation is 25°C (77°F), as shown in the chart below.
With a Smart Battery Sense is installed; the actual battery temperature will be used for
compensation; throughout the day.
In case there is no external source for battery temperature; charger uses its internal temperature for
battery temperature compensation. The temperature reading is taken in the morning; when the
charger has been idle for at least one hour, i.e. when the charger is not actively charging a battery or
supplying a load.