Victron energy MPPT 150/35 Manual page 12

3.8 Automatic equalization
Automatic equalization is default set to 'OFF'. With the Victron
Connect app (see sect 1.11) this setting can be configured with a
number between 1 (every day) and 250 (once every 250 days).
When automatic equalization is active, the absorption charge will
be followed by a voltage limited constant current period (see table
in section 3.5). The current is limited to 8% of the bulk current for
all VRLA (Gel or AGM) batteries and some flooded batteries, and
to 25% of the bulk current for all tubular plate batteries and the
user defined battery type. The bulk current is the rated charger
current unless a lower maximum current setting has been
chosen.
In case of all VRLA batteries and some flooded batteries
(algorithm number 0, 1, 2 or 3) automatic equalization ends when
the voltage limit maxV has been reached, or after t = (absorption
time)/8, whichever comes first.
For all tubular plate batteries and the user defined battery type
automatic equalization ends after t = (absorption time)/2.
When automatic equalisation is not completely finished within one
day, it will not resume the next day, and the next equalisation
session will take place as determined by the day interval.
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