Charging Controller Protection Undervoltage Automatic Review

Works until it works. It looks like the setpoint is drifting. Uses this for a parking mode DVR to turn off the power when the battery runs out while parked. It worked for a week then the battery died. Set it up, worked for a week, then the battery was empty again. Set it up a third time and after about a week the battery was dead. Removes and disables the parking mode of the DVR. A few weeks later I had to buy a new battery for €140 because batteries are damaged by deep discharge cycles.

Works as advertised. The setting range is very wide, from <8V to >15V. However, a few details are missing from the specifications, in particular how much current the device draws itself (i.e. without a connected load). In "load connected" mode, it consumes 35 to 45 mA depending on the supply voltage. In load shedding mode it will draw between 5 and 10mA, again depending on the voltage it is connected to. Given the maximum load of 10A, that's not much. However, in my case, which is…

You need to add some non-conductive supports and mount to something. Works as advertised. This is very handy for off-grid solar panels when you want to turn something on (fridge or dehumidifier) while you're away, but don't want to drain the battery. All of the entry-level inverters I've worked with stop supplying AC power when the battery voltage drops to 10.5V. kills the battery. So you can adjust the tension as you like. in my case 12V or about 50% charge. Provide an output to a DC…

This is my second protection board module, it works fine but needs an AC power source to set it up properly. switch-off voltage and switch-on voltage. 2 things I like about it are that there is no display to bypass the power and you can connect a bypass switch to turn it on manually instead of waiting for it to reach the reconnect voltage. What I don't like about it. there is no delay when it reaches the cut-off voltage. When I plug the device in, there is a rapid sudden drop in voltage for a…

There are no instructions for this block - it's just a circuit board in static packaging. The terminals are labeled on the board, but the potentiometers are not. The FAQ here at Revain states that the start switch is 'mandatory', but the unit should turn back on if the voltage rises above a threshold. Haven't played with pots yet - plug it into a solar fountain with a small battery. . The device does not turn on until I press "Required Switch". The device then operates until it reaches the low…

I purchased this unit to switch off loads connected to my solar powered shed when the main batteries run low. My goal was to turn off the power at 55% battery voltage (12.15V) and resume operation when the battery voltage exceeds 12.8V (30°C) to +113°F (45°C). Adjustment: There are several ways to calibrate; I connected an AC voltage source and a multimeter to the input. In any case, it is important that the desired on/off voltage is available so that it can be set "out of the box", which was…

I use this in my car to unplug my fridge when camping when the battery voltage is too low. I chose this unit from Revain for a number of reasons. 1) The disconnect and reconnect voltages are set by two potentiometers on the board. Most others have DIP switches that force you to use a set of predefined disconnect and reconnect voltages. Others had no adjustment at all. 2) No voltage display. While I like to see the voltage, I plan to place this unit behind the floor panel where my fridge cords…