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Victron BlueSolar MPPT 75 10 Manual

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EN NL FR DE ES SE Appendix
1 General Description
1.1 Ultra fast MPPT tracking
Especially in case of a clouded sky, when light intensity is changing continuously, a fast
MPPT algorithm will improve energy harvest by up to 30% compared to PWM charge
controllers and by up to 10% compared to slower MPPT controllers.
1.2 VE.Direct
For a wired data connection to a Color Control panel, PC or other devices
1.3 Load output
Deep discharge of the battery can be prevented by connecting all loads to the load
output. The load output will disconnect the load when the battery has been discharged
to a pre-set voltage.
Alternatively, an intelligent battery management algorithm can be chosen: see Battery
Life.
The load output is short circuit proof.
Some loads (especially inverters) can best be connected directly to the battery, and the
inverter remote control connected to the load output. A special interface cable may be
needed, please see section 3.6.
1.4 Battery Life: intelligent battery management
When a solar charge controller is not able to recharge the battery to its full capacity
within one day, the result is often that the battery will continually be cycled between a
‘partially charged’ state and the ‘end of discharge’ state. This mode of operation (no
regular full recharge) will destroy a lead-acid battery within weeks or months.
The Battery Life algorithm will monitor the state of charge of the battery and, if needed,
day by day slightly increase the load disconnect level (i.e. disconnect the load earlier)
until the harvested solar energy is sufficient to recharge the battery to nearly the full 100%.
From that point onwards the load disconnect level will be modulated so that a nearly 100%
recharge is achieved about once every week.
1.5 Internal temperature sensor
Compensates absorption and float charge voltages for temperature.
1.6 Automatic battery voltage recognition
The controller will automatically adjust itself to a 12V or a 24V system one time only.
If a different system voltage is required at a later stage, it must be changed manually, for
example with the Bluetooth app, see section 1.8.
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