Battery Charge Discharge Under Over Voltage Protection Module

I bought a few of these last year for some project. I ordered them on Aliexpress. By the time we received them I forgot what the project was. So I'm selling these for less than what we paid for them in hopes someone else can find use for these modules. Don't worry, we will ship these out fast so you don't forget about your project before it gets to you. Below is the description.

Module Highlights:

Battery charge and discharge intelligent control;
You can set the charge and discharge time;
With serial communication function, real-time monitoring of the working status of the relay through the serial port;
Additional signal output, when the relay to meet the conditions, the output high, you can control other equipment.
A key emergency stop function (STOP button), with reverse protection, reverse does not burn.



Operating mode:

Voltage upper limit: UL1, voltage lower limit nL1, the voltage upper limit is greater than the voltage lower limit (UL1> nL1)

U-1: Charging measurement: When the measured voltage is lower than the lower limit voltage, the relay pulls above; the upper limit voltage, the relay is disconnected.

U-2: charge measurement time control: set the charging time (OP); when the measured voltage is lower than the lower limit voltage, the relay pull, and then start the countdown OP time, the end of the timer, the relay off; when the measured voltage is higher than the upper limit voltage , The relay is disconnected.

U-3: Discharge detection: When the measured voltage is lower than the lower limit voltage, the relay is off, above the upper limit voltage, the relay pulls;

U-4: discharge detection time control: set the discharge time (OP); when the measured voltage is higher than the upper limit voltage, the relay pull, and then start the countdown OP time, the end of the timer, the relay off; when the measured voltage below the lower limit voltage , The relay is disconnected;

U-5: voltage in the range, the relay pull: when the measured voltage between the upper and lower limits, the relay pull, the other circumstances open;

U-6: voltage outside the interval, the relay pull: the measured voltage below the lower limit voltage or higher than the upper limit voltage, the relay pull, the other case the relay is off.


Product parameters:

1: Power supply voltage: DC6--40V, voltage detection range DC 0--60V, suitable for less than 60V of the various batteries, voltage measurement error ± 0.1V.

2: charge and discharge time (OP) range: 0 - 999 minutes.