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4Pcs XH-M609 DC 12V-36V Voltage Protection Module -Digital battery over-discharge protection switch is specially designed for 12-36V lithium and lead-acid battery.
Board Size:
57 X 42 X 19mm/2.24 X 1.65 X 0.75inch(L*W*H)
Example of setting instructions
Set lower than 12.5V to stop , higher than 14V to start:
Set the protection value:press " + " once to display the protection value , double- click " + " , the decimal point flashes , press+ , - to change the value at this time , and change it to12.5. If there is no operation for 3 seconds , the module will automatically save and exit the setting mode.
Set the return difference value:press " -" once to display the return difference value , double-click the " - " the decimal point flashes , press " + , - " to change the value at this time , and change it to 1.5. If there is no operation for 3 seconds , the module will automatically save and exit the setting mode.
Trouble Shooting
Trouble:Set this up to test a 3s li-on pack on a 10 watt LED the display lit for a couple minute then the module went dead never worked.
Reason:The module is only suitable for a single battery , not for battery pack.
Solution:Please connect with a single battery.
How to use
The first time a new battery is used, the rated voltage value is close to the actual value, Judgment to stop the discharge voltage. A reasonable discharge voltage value can be obtained according to the general voltage calculation method of the battery. When the old battery is used, the actual voltage value and the rated voltage value are quite different, so you need to measure the stop voltage value in actual use.
Battery charging usually uses slow charging (the voltage and current of fast charging are relatively large, and the battery is easily damaged.) The charging voltage of slow charging is 1.2 times the rated voltage, and the charging current is adjusted to about 2/10 of the rated capacity current of the battery. For example: the charging voltage of a 6V 50Ah battery is about 7.2V, adjust the charging current to 10A.
Package Included
4x Protection Module
Michael G
Reviewed in the United States on February 12, 2025
Extremely functional and very easy to understand. Just look out for the input/output on the board. For what you pay and what you get it’s pretty decent value. I am unsure of the accuracy of the regulator but it seems to be doing fine hooked up to my devices. Pro tip: put a dab of silicon on the capacitor to help it last longer they are notorious for breaking off.
deltavdeltat
Reviewed in the United States on February 1, 2025
The instructions are pretty useless. The one I used was reading almost 2 volts low on the input. After fumbling with the programing, I discovered that you can correct the displayed input voltage.
BJ Worley
Reviewed in the United States on September 7, 2024
Works great and regulates as it should!
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