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A charge controller, or charge regulator is basically a voltage and/or current regulator to keep batteries from overcharging. It regulates the voltage and current coming from the solar panels going to the battery. Most "12 volt" panels put out about 16 to 20 volts, so if there is no regulation the batteries will be damaged from overcharging. Most batteries need around 14 to 14.5 volts to get fully charged.
LandStar BPL series solar charge controller combines the solar charge controller and LED constant current driver into one unit which is ideal for solar LED Lighting, especially for the application for LED lamp which requires dimmer function. It can also reduce the system cost and increase the system flexibility.
·12V/24V automatic identify or user-defined working voltage.
·Gel, Sealed, Flooded and user-defined battery type option.
·With functions of current power calculation, it is convenient to view charging and discharging energy of each day, month, year and total value.
·Wide input voltage range：DC8.0V—DC32V, compatible with 12V/24V full voltage range.
·Digital precision constant current control and the control accuracy are better than ± 2%.
·Maximum output efficiency of 95%.
·The rated output current can be adjusted at rated power and current range.
·The max output voltage can reach up to 60V
·Charge control parameter, the load control parameter and the output current value can
be set separately.
·Use of standard Modbus communication protocol for TTL232 bus connections,
communication protocol compatibility much better.
·Fully encapsulated PCB, IP67 protection.
Load control mode:
Manual, Light ON/OFF, Light ON+ Timer, Time Control
·PV array short circuit
·PV reverse polarity
·High voltage transients
·Load short circuit
·Battery reverse polarity
Nominal system voltage
12 / 24VDC
Battery terminal voltage
Maximum PV input voltage
Rated charge current
Rated output power
Rated output current
Output voltage range
Voltage of battery～60.0V
Load open circle voltage
Power output adjustment time
Temp. compensation coefficient
-35℃ to +55℃
The enclosure of charge controller:
If the controllers are used indoors or outdoors but with box, user can choose IP30 solar controller. For outdoor application, sometimes steam condenses to water when it touches a cold surface. And the water can come into controllers along with the wire. So it’s better to use high IP rating controller in humid area.
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