Feature

●【Parameter】Input Voltage Range: DC12-36V，Control Accuracy: 0.1V, Power Consumption: <1.5W, Maximum Amperage before Breaker Trips: 20A.
●【Efficacy】To aviod the battery from over discharging to prolong the battery lifetime. Note: The module only work for a single battery, not for battery pack.Its a protection switch module, not included batteries itself.
●【It Helped Your Battery Not to Over Drain】When the battery voltage reach the setting values, the module will disconnect load automatically .saving solar charge battery running 10 watt fan,for your pond fountain to regulate the battery and solar charge,use these to stop your pond fountain when the battery gets too low after the sun stop shining on the solar panel,vworks like a charm.
●【Low Voltage Protector Disconnect Switch 】Long press the left button to set cut-off voltage. The right button apparently sets the recovery voltage offset.If the relay remains open on reset of power, just hold both buttons down to activate the relay to close.
●【You Can See that It Displays the Battery Current Voltage】Settings is stored non-volatile,Programed settings are not lost when current to the unit is removed and then reinstated. It does not come with a case but you can did 3D print one to protect it. Very small ,Used this for a power wheels conversion.


Description

Instruction Manual：

1. To calibrate the unit, Hook up your power supply as well as a multimeter. Long press the left button until the display is flashing. Use the left and right buttons to raise or lower the reading to match.

2. Adjust the undervoltage cut-off. Short Press the left button, the undervoltage value will be displayed. Double Click the left button until the period is flashing. You may then use the left/right buttons to adjust the cut-off value.

3. Adjust the Cut-In Value. Short press the right button. The cut-In voltage will be displayed. This is added to the cut-off voltage, so if you have 12V set as the cut-off and 2V set as the cut-in, power will be restored at 14V. Double press the right button until the period is flashing. You may now use the left/right buttons to adjust

4. Adjust the debounce timer. Long press the right button. The debounce timer will be displayed in minutes. IE 0 is instantaneous, 1 is one minute.

The left button controls the disconnect voltage. If voltage goes below this value, power is cut off.

The right button is how much voltage is required to reactivate on top of the value set on left button. (ex: left is 10v and right is 2v, this will have power anytime over 10v, once it reaches 10v, you need to charge it up to 12v to be active again.)

You can change value of left and right button with a long press on the one you want to change. They both have their value. When voltage display is flashing, you can raise and lower the value. Wait until the voltage display has stopped flashing, then your value is saved.

Note : the voltage display is rounded, so 14.24v become 14.2v and 14.25 become 14.3v

Package Includes:4 PCS 12V-36V DC Voltage Protection Module