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MPP solar charge controller for high-quality caravans and boats.

For solar modules with:

- up to 165 Wp module performance
- max. 10A module current
- max. 50V module voltage

Charging options: 1 supply and 1 starter battery

Controllers according to the MPP technology are continuously and automatically calculating the maximum power yield (MPP) of the solar modules several times per minute. The voltage surplus of the solar module will be transformed to a higher charging current for the battery (realised by high-frequency switching controller technology with high efficiency). This surplus of charging current ensures short charging times and the best possible power yield of the solar system.

Main Charging Port I: Automatic charging and conservation of charge of the (main) board supply battery
Auxiliary Charging Port II: Current and voltage reduced for recharging as well as trickle charge of the vehicle’s starter battery, thus ensuring continuous starting capacity
Continuous control, full batteries by immediate recharging in case of current consumption
Automatic charging programs adjustable for gel, acid/lead-acid, AGM/fleece and Lithium batteries for optimum charging results
Very low own electricity consumption, high efficiency
Connection for Battery Temperature Sensor for temperature compensation
Indicators for operating state "Full", "> 80%", "Charging", "MPP" and "Low Voltage"
Control output EBL, prepared for “Elektroblock” with solar current display, cable set, Art. 2007, required

Votronic_MPP_Duo_Digital_Bedienungsanleitung.pdf Download
Ambient temperature: -20°C - +45°C
Battery type adjustable: Acid, Gel, AGM, LiFePO4
Charge controller type: Dual-MPPT
Charging characteristic: IU1oU2
Charging timer: 3-fold
Charging voltage: max. 15V
Connection options: LCD Solar Computer S
Connection temperature sensor: yes
Device fuse FKS: 15A
Manufacturer: Votronic
Number of charging outputs: 2
On-board power supply filter: yes
Own consumption in standby: 4mA
Own consumption under load: < 4mA
Pre-charge current: max. 6A (deepest discharged battery:
Product Type: Charge controller
Protective functions: Reverse current lock (night), overload, overheating, charging, reverse polarity
Reset voltage: 12,7V
Scope of application: indoor area
Solar charging current living area battery: yes
Solar module - power (max.): 165W
Solar module current (max.): 10A
Solar module voltage (max.): 50 V/DC
System voltage: 12V DC
Weight: 225 g
max. charging current: Battery1: 12A Battery2: 1A
max. load current: 12A
offgridtec.com Reviews with ekomi.de
Können verschiedene Batterietypen angeschlossen werden, z.B. als Starterbatterie eine Blei-Säure und als Boardbatterie eine LiFePO4-Batterie?
Ja, dies ist problemlos möglich. Der zusätzliche Ladeausgang für die Starterbatterie dient rein als Erhaltungsladung mit max. 1A. Eine Vollladung ist damit nicht möglich. Die Batterieeinstellungen beziehen sich rein auf den Boardbatterie-Ausgang.
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