This board is a single voltage can not be universal
When the battery voltage drops about 10.5V (low voltage adjustable) when the protection board will automatically be in the secondary charge, close the power of about 14.4V (up to the voltage adjustable).
Turn on the battery green light indicator light, red light when charging, full of red light off, the relay disconnect the 220V input end of the charge, which play an energy saving effect. The first charge test first battery discharge to 10V or so can be tested.
If a battery connected to the red light immediately extinguished, the relay is broken, please contact the owner even if you do not personally adjust the two potentiometers, avoid. So that you can not tune back in the tune.
Function 1: This board transformer maximum limit for the 30A relay, the battery through the protection board to detect high and low level for automatic management of charging.
Function 2: This board has a reverse protection function, not connected to the battery No output: regardless of whether the output of the battery clip is interrupted, can be assured plug. Battery polarity reversed no output: This is a very practical function, even if the blind is not a problem.
Output short circuit automatically shut down: This is also a very practical protection, no matter what the state of the charger, as long as the output short circuit, the charger will automatically turn off the output, so as to effectively protect the charger will not burn out due to short circuit.
This board adopts special voltage control IC and automobile special relay assembly, small size, large current, close voltage accurate and stable, well thought-out, full-featured, reliable performance, really can let you rest assured .
Adjust the start voltage and turn off the voltage description
Adjustment: VR1 The battery voltage is charged to 14.8V when the relay is disconnected and the charge is over. (Off voltage setting: clockwise low voltage, counterclockwise high voltage)
Adjustment: VR2 makes the battery voltage as low as 11.5V when the relay pulls and starts charging. (Start voltage setting: clockwise low voltage, counterclockwise high voltage)