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Racing Drone Multifunction 3-4S LiPo Battery Protection Board with LED Lights and Low Voltage Alarm

Racing Drone Multifunction 3-4S LiPo Battery Protection Board with LED Lights and Low Voltage Alarm


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This is a multifunctional battery protection board designed for racing drones. It's designed to sit over your LiPo Battery to provide it with a protective shell. In addition, it has functions such as voltage monitoring, low voltage alarm, LED navigation lights, and an active out of control alarm.

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

Low voltage alarm: The voltage alarm can be set so that when a cell reaches the preset alarm voltage (3.3-3.7V), the buzzer starts to alarm and the LED lights start to flash.

Multicolour LED navigation lights: The board incorporates LEDs on top and at the rear with seven different colour options to select from.

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 - a useful feature to help you find your quad if you lose it in long grass.


  • Plug and Play - Powered by a 4S or 3S LiPo Battery Balance Plug
  • Multicolour LED Lights
  • Battery Voltage Monitor
  • Low Voltage Alarm
  • 6 Minute Buzzer

Please Note: The device is powered by a 4S or 3S LiPo battery's balance plug. Default factory setting is for a 4S LiPo battery. If a 3S LiPo battery is used, the positive wire should be soldered to the pad marked as “3S+” on PCB.

  • Input voltage: 11.1-17.4V
  • Working current:60mA
  • Alarm set value range: 3.4-3.7V
  • Buzzer volume: 170db
  • Size:87x33x30mm
  • Weight: 26g


  • 1x Battery Protection Board
  • 1x Anti-Slip Pad

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We are partnered with several delivery companies including Royal Mail, DHL, APC and Parcel Force. If you have a special delivery requirement or would like to arrange a shop collection please contact us. For small low value orders our cheapest delivery service is Royal Mail First Class; this service aims to deliver the next working day including Saturdays and it can be sent recorded for extra peace of mind – please note this is not a guaranteed next day delivery or trackable service.

For a guaranteed next day delivery we recommend Royal Mail Special Delivery or one of our courier delivery options. Royal Mail Special Delivery will arrive by 1PM the next day and for an extra fee can be delivered on Saturdays. APC Overnight offers next day delivery with full tracking and a 2hr time slot pre-delivery text notification. DHL is a good option for larger consignments and remote locations such as Northern Ireland and Isle of Man. All high value orders are fully insured and will likely require a signature on delivery.

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