Victron energy Phoenix Multi 120VAC User Manual page 9

2.3 Special Charger Modes Equalizing
Some batteries may need a regular equalizing charge. To perform an equalizing charge the
Phoenix Multi can charge at a higher voltage (1V above the absorption voltage for a 12V
battery, 2V for a 24V battery) for a period of one hour. The charger current is then limited to
1/4 of the specified value.
The "bulk" and "absorption" LEDs will flash alternately during this cycle.
The equalizing mode results in a charging voltage that may exceed the
maximum voltage of DC consumers. These should be disconnected when
performing an equalizing charge.
Forced Absorption
In some cases it may be necessary to charge the battery at the absorption voltage for a
specific period of time. In the Forced Absorption mode, the Phoenix Multi will charge at the
normal absorption voltage during the preset maximum absorption period.
The "absorption" LED will light up.
The Phoenix Multi can be switched to one of these modes from the remote panel as well as
with the aid of the front switch. A prerequisite is that all switches (front, remote and panel) are
switched to "on", and that none are switched to the "charger only" position.
Proceed is as follows to switch the Phoenix Multi to either the equalizing mode or Forced
Absorption mode:
REMARK : switch quickly from "on" to "charger only" and back. The switch must be switched
in such a way that the intermediate position is, as it were, "skipped". If the relevant switch
remains in the "off" position for any length of time, you may run the risk that the appliance will
be switched off. In that case you will need to start again at step 1. Practice is required,
particularly when using the front switch. This is less critical when using the remote panel.
1. Ensure that all switches (i.e., front switch, remote switch or remote panel switch if
present) are switched to the "on" position.
2. Ensure that the Phoenix Multi is charging (an AC input voltage must be present;
check that the "mains on" LED and one of either the "bulk", "absorption" or "float"
LEDs is illuminated).
3. Switch the switch successively to "charger only", "on" and "charger only". NOTE:
the switching itself should be done quickly but the interval between switching
should be from 1/2 to two seconds.
4. The "bulk", "absorption" and "float" LEDs will flash five times. Subsequently, the
"bulk", "absorption" and "float" LEDs will each light up for a period of two seconds.
•
If the switch is switched to "on" while the "bulk" LED illuminates, the charger
switches to the equalizing mode.
• If the switch is switched to "on" while the "absorption" LED illuminates, the charger
switches to 'Forced Absorption'.
If the switch is not in the required position after these steps, it can be simply switched one
more time. This will not change the charging status.
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