4S 16.8V 18650 Lithium Battery Capacity Indicator Board

4S 16.8V 18650 Lithium Battery Capacity Indicator Board – Your Essential Battery Management Tool!

This brand new, ultra-thin 4-series 16.8V lithium battery capacity display board is designed specifically for 18650 lithium battery packs, offering intuitive and accurate power monitoring. Whether you’re using it for power tools, outdoor gear, or DIY power projects, you can easily keep track of your battery’s status and avoid unexpected power loss.

Key Features:

• Ultra-Thin Design: Slim and lightweight, easy to integrate into various devices.
• Intuitive Display: 5 LED indicators provide a clear, at-a-glance view of remaining battery power.
• Wide Compatibility: Suitable for lithium battery packs, lead-acid batteries, electric vehicle batteries, and other electric equipment.
• Real-time Monitoring: Simply press the red button to instantly display the current battery charge level.
• Ultra-Low Power Consumption: After releasing the button, the LEDs turn off after a 3-5 second delay, consuming no power in static mode.
• Reverse Connection Protection: Built-in anti-reverse function prevents damage if positive and negative terminals are connected incorrectly, ensuring safe use.

Specifications:

• Battery Compatibility: 4-series Lithium Batteries (Li-ion / Li-Po), fully charged voltage 16.8V
• Dimensions: 2.7 x 62 x 15.8 MM
• Cable Length: 140 MM
• Display Type: 5 LED indicators
• Static Power Consumption: 0mA (when LEDs are off)
• Operating Current: Approx. 30mA (when LEDs are on)

Power Level Display Parameters (Reference values, with a 2% error range):

How to Use:

1. Connect the red wire (positive) and black wire (negative) of the display board to the positive and negative terminals of the battery pack you wish to measure.
2. Gently press and hold the red button on the display board with your finger.
3. The LED indicators will light up, showing the real-time battery charge status.
4. Upon releasing your finger, the LED lights will turn off automatically after approximately 3-5 seconds, entering a low power consumption mode.
5. If the wires are connected in reverse, the module’s reverse connection protection will prevent damage; simply correct the wiring.

This capacity indicator board is an indispensable accessory for your battery management, providing reliable power level alerts!