Description (user manual):
-Powered by 4S or 3S LiPo battery's balance plug
Default factory setting is only for 4S LiPo battery. If 3S LiPo battery is used, the positive wire (the red one)
should be soldered to the pad marked as “3S+” on PCB.

-Battery voltage monitor
Display the battery real-time total voltage through a digital display.

-Low voltage alarm
As the digital monitor displays the battery total voltage, press and hold the button for 3 seconds and enter
into the low voltage alarm range setting, and then press the button and set the alarming voltage(3.3-3.7V).
When the single cell voltage reaches the preset alarm voltage, the buzzer starts to alarm and the LED lights
start to flash. When the setting is done, press and hold the button for 3 seconds and enter into the next function
setting (LED color setting).

-Multicolor LED navigation lights
After entering the LED color selection interface, press the button to switch the LED light color (seven color options).
Press and hold the button for 3 seconds to return to the battery total voltage display interface.

-Active out of control alarm function
When the battery board is powered on, it starts counting and the buzzer will start to beep in 6 minutes.

Specification:
Item name: Battery Protection Board
Material:PC
Input voltage: DC11.1-17.4V
Working current: 60mA
Alarm set value range: 3.4-3.7V
Buzzer volume: 170db
Size: 87*33*30mm
Weight: 26g

Features:
-This is a multifunctional battery protection board designed for Type “X” multrirotors.
-This product can effectively protect LiPo batteries from being hit and damaged.
-In addition, it has functions such as voltage monitoring, low voltage alarm, LED
navigation lights, and active out of control alarm.

Packege included:
1* battery protection board
1* battery strap
1* user manual

User Manual