Features

• Works from 1S to 4S packs.
• Two independent relay outputs for total battery voltage.
• One voltage relay output per cell.
• Over-discharge and overcharge control of every cell.
• Measurement-chain break control with audible alarm.
• Displays each cell voltage, total voltage and charge percentage.
• Adjustable 0–100% PWM balancing load.
• Adjustable voltage threshold for balancing.

Operation

• Short press — switches between setting mode and voltmeter (anti-degradation screen mode).
• Long press — toggles between setting and display modes.
• The encoder changes settings; the button selects the mode.

Setting up

• Balancing starts when all cell voltages are above the set threshold.
• Set the voltage to match the values at the inputs.
• Set on/off thresholds for relays Relay1–Relay3.
• Set 0% and 100% of the battery correctly for accurate charge display.
• Critical discharge and overcharge checks run per cell; an audible alarm sounds when exceeded.