Battery Charging Information - Victron energy MPPT 150/35 Manual Del Usuario

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3.7 Battery charging information

The charge controller starts a new charge cycle every morning,
when the sun starts shining.
Lead-acid batteries: default method to determine length and
end of absorption
The charging algorithm behaviour of MPPTs differs from AC
connected battery chargers. Please read this section of the
manual carefully to understand MPPT behaviour, and always
follow the recommendations of your battery manufacturer.
By default, the absorption time is determined on idle battery
voltage at the start of each day based on the following table:
Battery voltage Vb
(@start-up)
Vb < 11,9V
11,9V < Vb < 12,2V
12,2V < Vb < 12,6V
Vb > 12,6V
(12V values, adjust for 24V))
Default absorption voltage: 14,4V
Default float voltage: 13,8V
The absorption time counter starts once switched from bulk to
absorption.
Multiplier
x 1
x 2/3
x 1/3
x 1/6
9
Maximum
absorption time
6h
4h
2h
1h