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⚡ 12v-36v digital low voltage protector disconnect switch with over-discharge protection module for lead acid and lithium batteries logo

⚡ 12V-36V Digital Low Voltage Protector Disconnect Switch with Over-Discharge Protection Module for Lead Acid and Lithium Batteries Review

3

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
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Description of ⚡ 12V-36V Digital Low Voltage Protector Disconnect Switch with Over-Discharge Protection Module for Lead Acid and Lithium Batteries

Programmable battery low voltage disconnect switch for DC12-36V lead acid battery and lithium ion battery. It's a protection switch module, not included batteries itself. On-board momentary push button to set the low voltage disconnect parameter and 3 digit red LED display the parameter easy to operation. When the battery voltage reach the setting values, the module will disconnect load automatically to aviod the battery from over discharging to prolong the battery lifetime. Display is accurate, the switch module is quickly to open and close when near minimum voltage; Settings is stored non-volatile, it can keep set when power off. Board Size: 57 X 42 X 19mm/2.24 X 1.65 X 0.75inch(L*W*H), Input Voltage Range: DC12-36V, Control Accuracy: 0.1V, Power Consumption: <1.5W, Maximum Amperage before Breaker Trips: 20A.

Reviews

Global ratings 3
  • 5
    1
  • 4
    2
  • 3
    0
  • 2
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  • 1
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Type of review

Revainrating 4 out of 5

Efficient Low Voltage Adjustable Switch

I bought several of these to use on some UPSs I build and also to protect some DC lighting systems both of which run on deep cycle batteries. Switches work very well. The only thing I would like to change about it is that the display doesn't run all the time as this increases the power consumption of the device a bit. My solution was to simply unsolder the LED module after setting the voltage points, but someone more adventurous could change the software to turn the display off after some delay

Pros
  • handy item
Cons
  • ---

Revainrating 4 out of 5

The instructions are a bit short, but the connections are labeled in English.

Okay I wanted to use this on a 24vdc solar system. I would like the fan to only turn on when charging flooded batteries as they will then give off gas and vapor. It's easy to program to the voltage you want, so that's good. Lots of relays to control the low current (2 amp) fan. Here's my problem. The output terminals of this controller provide a voltage equal to the supply voltage of the board. In other words, if I connect it to 24V DC, it outputs 24V DC when it's on. I have a 12V fan. I have…

Pros
  • Great price
Cons
  • Big and bulky

Revainrating 5 out of 5

It just works! Very simple and very powerful.

This device has been designed to prevent the battery (or batteries) from being excessively discharged in a system such as: B. a battery that is charged by a solar panel. Batteries of any kind can be damaged by deep discharge during use. . There are things like "deep cycle" batteries that are more resilient to these problems, but they still have a minimum voltage to which they can be repeatedly discharged without causing permanent damage. This module is a very simple but very functional device…

Pros
  • Delivery was very quick
Cons
  • Crumpled