Technical information

50
BLUESOLAR CHARGE CONTROLLERS MPPT 70/15
www.victronenergy.com
Victron Energy B.V. | De Paal 35 | 1351 JG Almere | The Netherlands
General phone: [phone] | Fax: [phone]
E-mail: [e-mail] | www.victronenergy.com
Ultra fast Maximum Power Point Tracking (MPPT)
Especially in case of a clouded sky, when light intensity is changing continuously, an ultra fast MPPT
controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up
to 10% compared to slower MPPT controllers.
Load output
Over-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 preset voltage.
Alternatively, an intelligent battery management algorithm can be chosen: see BatteryLife.
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
the manual.
BatteryLife: 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 be 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 BatteryLife 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.
Resin encapsulated electronics
Protects the electronic components against the environment.
Automatic battery voltage recognition
The MPPT 70/15 will automatically adjust to a 12V or a 24V system.
BlueSolar charge controller MPPT 70/15
Maximum Power Point Tracking
Upper curve:
Output current (I) of a solar panel as function
of output voltage (V).
The maximum power point (MPP) is the point
Pmax along the curve where the product I x V
reaches its peak.
Lower curve:
Output power P = I x V as function of output
voltage.
When using a PWM (not MPPT) controller the
output voltage of the solar panel will be
nearly equal to the voltage of the battery, and
will be lower than Vmp.
Solar charge controller
MPPT 70/15
BlueSolar charge controller MPPT 70/15
Battery voltage 12/24 V Auto Select
Maximum battery current 15 A
Maximum PV power, 12V 1a,b) 200 W (MPPT range 15 V to 70 V)
Maximum PV power, 24V 1a,b) 400 W (MPPT range 30 V to 70 V)
Automatic load disconnect Yes, maximum load 15 A
Maximum PV open circuit voltage 75 V
Peak efficiency 98 %
Self consumption 10 mA
Charge voltage 'absorption' 14,4 V / 28,8 V
Charge voltage 'float' 13,8 V / 27,6 V
Charge algorithm multi-stage adaptive
Temperature compensation -16 mV / °C resp. -32 mV / °C
Continuous/peak load current 15A / 50A
Low voltage load disconnect
11,1 V / 22,2 V or 11,8 V / 23,6 V
or BatteryLife algorithm
Low voltage load reconnect
13,1 V / 26,2 V or 14 V / 28 V
or BatteryLife algorithm
Protection
Battery reverse polarity (fuse)
Output short circuit
Over temperature
Operating temperature -30 to +60°C (full rated output up to 40°C)
Humidity 100 %, non-condensing
ENCLOSURE
Colour Blue (RAL 5012)
Power terminals 6 mm² / AWG10
Protection category IP65 (electronic components)
Weight 0,5 kg
Dimensions (h x w x d) 100 x 105 x 40 mm
1a) If more PV power is connected, the controller will limit input power to 200W resp. 400W
1b) PV voltage must exceed Vbat + 5V for the controller to start. Thereafter minimum PV voltage is
Vbat + 1V