12V Battery Low Voltage Cut Off Switch, Electronic Controller Undervoltage Controller Turn Off The Power Load

The 12V Battery Low Voltage Cut Off Switch is a useful device for protecting your battery and load from undervoltage damage. However, according to customer feedback, there are some mixed results when using this product. The first customer tested the device with a battery and charger, and found that once the charge reached the pre-set voltage, the red light turned off and the output had voltage. Another customer tested the device before putting it into service and found that the unit failed to switch the load off in all tests, which is unacceptable for protecting your system. One customer provided a helpful explanation of S1 and S2, and shared their positive experience powering a 60W cooler in their van. However, another customer found that the cutoff did not stop the draw when their battery got low, and their battery was completely drained overnight. Overall, it appears that this device can be useful for some applications, but it may not work as expected in all situations. Make sure to thoroughly test the device before relying on it to protect your battery and load.