Victron energy BlueSolar MPPT 70/15 Anleitung Seite 4

1.6 Automatic battery voltage recognition
The MPPT 70/15 will automatically adjust itself to a 12V or a 24V system.
1.7 Three step charging
The BlueSolar MPPT Charge Controller is configured for a three step charging process:
Bulk – Absorption - Float.
1.7.1. Bulk stage
During this stage the Controller delivers as much charge current as possible to rapidly
recharge the batteries. When the battery voltage reaches the absorption voltage setting, the
Controller activates the next stage (absorption).
1.7.2. Absorption stage
During this stage, the Controller switches to the constant voltage mode, where the
absorption voltage is applied to the battery. When the charge current decreases to the float
transition current setting, the battery is fully charged and the Controller switches to the float
stage.
1.7.3. Float stage
During this stage, the float voltage is applied to the battery to maintain it in a fully charged
state.
When battery voltage drops below 13,2 Volt during at least 1 minute a new charge cycle will
be triggered.
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