Dual Battery 20A Solar Charge Controller 12/24V
Designed to charge and protect 2 batteries simultaneously, having an automatic cut-off to prevent over-charging. Can the unit work with only 1 battery? Yes, absolutely! The controller will determine automatically if there's only 1 battery connected and will pass 100% of the charging current to this battery. You can add a second battery later.
This controller can work with solar panels with combined power up to 160W (12V) / 320W (24V).Protection: overcharging, short-circuit, reverse polarity, revert current to PV. It is a perfect solar controller for a caravan, motorhome, camper, boat, or another system with 2 independent batteries or battery banks (e.g. engine and leisure battery). You can set initial charging priority e.g. 80% of power to go to the engine battery and 20% to the leisure battery. When one of the batteries is fully charged the controller will automatically divert full power to the other battery.
Other features include various LED indicators, battery type selection (sealed, gel, flooded), and RJ-45 socket for a remote LCD meter (can be purchased separately - click to view ourRemote meter/display for dual battery solar controller)
Features
* Microcontroller digital accuracy
* PWM Charge mode
* State of charge (SOC)
* Temperature compensation
* Automatic detection of the voltage
* External temperature sensor
* Remote meter MT-1 shows the working data and condition
* Battery type option
* Battery AH setting
* Charging priority setting
* Modify parameters through four keys
* Electronic protection
* Short circuit protection
* Reverse polarity protection
* Reverse current protection at night
* Overcharging or discharging protection
* Overload protection
Technical Specifications
* Set point: Sealed battery | Flooded battery | Gel battery
* Boost voltage: 14.2V | 14.4V | 14.6V
* Equalization voltage: 14.4V | 14.6V | 14.8V
* Float voltage: 13.7V | 13.7V| 13.7V
* Maximum solar voltage: 30V(or 55V)
* Battery voltage range: 1-15V
* Boost time: 30 minutes
* Self-consumption: 4mA at night, 10mA at charging
* Meter bus connection: 8-pin RJ-45
* Temp. compensation: -30mV/12V
* Terminals: 4mm square
* Temperature: -35 Centigrade to +55 Centigrade
Note: All data above all for 12V, if for 24V, please use 2x.
This controller is compatible with MT-1 Remote Meter
Packing:
1 x 20A Duo Battery Solar Panel Charge Controller Regulator
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