Victron energy MPPT 150/70 Manual page 25

Use this setting to reduce the charge current, for example, when a smaller battery bank is used that requires a lower charge
current.
Charger enabled
This setting enables or disables the battery charger. It is by default set to "enabled".
This setting can be used when work needs to be carried out on the installation. When this setting is disabled, the batteries will not
be charged.
Battery preset
This setting sets the battery charge algorithm. It is by default set to "rotary switch".
A selection can be made between:
• The rotary switch position.
• Pre-defined factory battery presets.
• User-defined battery presets.
• Create, modify or delete a user-defined preset.
This setting uses factory pre-defined presets for a large variety of battery types. These pre-defined charge algorithms are suitable
for almost all installations.
It is possible to also create user-defined battery presets. The chapter
do this. These user-defined presets are stored in the VictronConnect app library. This is helpful in case multiple solar chargers
need to be configured, eliminating the need to define the entire charge algorithm each time a new solar charger is configured.
Expert mode
This setting enables or disables expert mode. It is by default set to "disabled".
The default charge algorithms work well for almost all installations. Only enable expert settings if your
equipment has special requirements.
When this setting is enabled the following parameters can be configured:
• Charger voltages: bulk, absorption and float.
• Bulk: re-bulk voltage offset.
• Absorption: duration, time and tail current.
• Equalization: current, interval, stop mode and duration.
• Temperature voltage compensation.
• Low temperature cut off.
For the meaning of these parameters see chapter
Equalization
Equalization can cause damage to the battery if the battery is not suitable for an equalization charge. Always
check with the battery manufacturer prior to enabling equalization.
This setting can be used to disable or enable automatic equalization. When enabled, the number of days can be selected when
equalization should repeat.
A manual equalization can be initiated by pressing the "START NOW" button. Use the manual equalize option only during
absorption and float charge stages, and when there is sufficient sunlight. The current and voltage limits are identical to the
automatic equalize function. The manual equalization stage lasts 1 hour and can be stopped at any time by the Stop Equalize.
The equalization setting might not be active, this can be the case if the battery preset does not support an
equalization charge which is the case with lithium batteries.
Customize battery charge algorithm
This chapter explains how to modify a battery charge algorithm or to create, modify and delete user defined battery presets. See
the Battery charge algorithm settings [23]
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MPPT solar charger manual
Customize battery charge algorithm [21]
Battery charge algorithm settings
chapter for the meaning of all charge algorithm parameters.
explains how to
[23].
Configuration and settings