LVD Low Voltage Disconnect Module. 12V / 30Amp Black ABS Panel Mount Terminal Block

It works! I bought this to use on a 12 volt lead acid battery to run a ham radio repeater. I have a solar set up with 200 watts of solar, 40 amp charge controler and a lead acid battery. I didn't was my battery completely draining. I wired the battery to this device than wired this device to a fuse block that powers the repeater and a thermastat that kicks 12 volt dc fans on and off or a small 12 volt dc heating mat placed under the battery. When low voltage is reached, this device kills power to the fuse block which kills power to everything. When the charge comes back up to set limits, everything auto kicks back on. I've done a lot of learning with this thing. Let me pass on some knowledge about how to adjust the voltage settings.For lead acid 12 volts:12.8 volts is a full charge12.1 is about 70% capacity11.4 is about 40% and a good setting if your looking to extend battery life by not completely draining the battery.10.7 volts is considered a dead man's backstop. A good setting if you want to use your juice but not drain the battery to a point of irreversible damage.10.5 volts is hard dead so 10 is to low to even think about for lead acid honestly.I got mine set to 10.7 so I can use all my juice but not cause irreversible damage. This I'll however reduce the life span of the battery.I did have the reconnect setting 12.8 but I had to wait all day before I could start using the repeater again. So I lowered that to 12.1. The solar panels produce that much as soon as the sun hits the panels allowing me to at least use the repeater during the day.

Electronics plugged into my car's DC accessory outlet was draining my car battery overnight. I connected this module between the car battery and the outlet with some 16 awg speaker wire, and now the car starts every morning.You can pick from useful voltage cutoffs at 12.1, 11.4, 10.7 and 10.0. I am using the 12.1 volt cutoff to shut off the electronics shortly after I park the car.

Worked like a charm. Set to 12.1 volts on and off, and it controls my heated grips the way it should have been done in the first place. The circuit on the grips was flawed and would kill my battery every time I forgot to shot it off.

I put it on camper so if the camper battery runs down to low it wont hurt it. You set the dip switches for the voltage you want it to cut off but it is not accurate enough to work properly. The closest voltage setting for the AGM deep cycle type battery is to high and wont let you use much of the capacity. Cut on voltage isn't particular so back on voltage doesn't matter to much because the truck voltage is high. It would be great if it had finer adjustments or the switch settings were more accurate.

I really can't give this a bad review because it seems to do what it is advertised to do. This is more for those folks who might think about using it in a solar application. This is for the 48V model which I ordered and received.I wanted to automatically switch my 10 amp, 48V solar panel input off dusk and on again at dawn. The day/night and night/day transition periods make my solar controller / battery system (Oukitel) constantly switch on and off as it errors out due to low input voltage until the voltage gets close to zero when it gets dark enough out. So, I put this in line and set it to disconnect at 40V and reconnect at either 45.6V or 48.4V. Theoretically, I figured this would work. Unfortunately, there is so much voltage variation coming from the panels, plus a significant voltage drop when the panels reconnect to the load (Oukitel), that this device itself will switch itself on and off (disconnect / reconnect) during the day/night transition periods.With a more stable input (battery instead of solar), as it is intended, I'm sure this will work just fine. I monitored the switching voltages and they were accurate.I'm keeping it and just using it as a manual on/off switch, which works great...

The Low Voltage Disconnect Module is an excellent device for solving low voltage issues when your loaded system gets caught in a vicious situation of on-off-on-off cycling under load. The load on my 24v system will cause my inverter to cycle off when the battery bank drops to about 20v. The inverter then momentarily cycles off. When this occurs, my battery bank rebounds a few tenths of a volt in a few seconds or just long enough for the inverter to come back on. At this point, the inverter sees the heavy load to only cycle off again. This power cycling can continue for some time and is hard on the system when starting and stopping continuously under load with low batteries. After installing the 24volt/30amp Low Voltage Disconnect Module, I set the disconnect point at 21.4v and reconnect point at 24.2v. My system is now very happy and cleanly disconnects at about 85% of actual full charge of my battery bank, which is a good discharge cutoff point for longevity of my batteries. There are four options for each disconnect and reconnect set-point. The manual on-auto-off switch and status LED are also a very nice features for system maintenance and testing purposes. The company also make a 12, 36, and 48 volt version! If you have a load hystresis issue with your system, this device may be your answer.

Works as it should

Did what we needed it to. No complaints.