Lipo Battery Voltage Tester with Buzzer Alarm

Lipo Battery Voltage Tester with Buzzer Alarm 

A LiPo Battery Voltage Tester with Buzzer Alarm is a highly useful and essential tool for anyone working with Lithium-based rechargeable batteries, especially in RC hobbies, drones, robotics, and other high-performance electronic applications. LiPo batteries are powerful but require careful handling, as over-discharging them can lead to permanent damage, reduced capacity, or even safety risks. This compact tester provides a quick, accurate, and reliable way to monitor battery health in real time.

The device connects directly to the battery through its balance connector, allowing it to read both the overall pack voltage and the voltage of each individual cell. This is important because LiPo packs often consist of multiple cells in series (1S to 8S), and even if the total voltage seems acceptable, a single cell may be critically low. By scanning each cell automatically and displaying the values on the bright LED screen, the tester helps ensure balanced performance and safe operation.

One of the standout features is its built-in low-voltage buzzer alarm. When any cell drops below the preset threshold (adjustable between 2.7V and 3.8V), the device emits a loud warning sound. This feature is extremely useful during flight or field use, allowing users to immediately stop and replace or recharge the battery before it becomes dangerously depleted.

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Features

• Compatible with 1S–8S LiPo/Li-ion/LiFe batteries
• Dual display showing total pack voltage and individual cell voltages
• Audible low-voltage buzzer alarm
• Adjustable alarm threshold (2.7V–3.8V per cell)
• Bright LED display for easy reading
• Plug-and-play design
• Compact and lightweight
• Helps prevent battery over-discharge
• Low power consumption

Specifications

• Battery Compatibility: LiPo, Li-ion, LiFe
• Supported Cells: 1S to 8S
• Total Voltage Range: 0.1V – 36V
• Cell Voltage Range: 0.1V – 4.5V
• Voltage Accuracy: ±0.01V
• Alarm Setting Range: 2.7V – 3.8V per cell
• Display Type: Red 7-segment LED
• Alarm Type: High-decibel buzzer
• Operating Temperature: –10°C to +45°C
• Dimensions (approx): 40 × 25 × 11 mm
• Weight: ~20 g

Applications

• RC aircraft, helicopters, quadcopters, and drones
• RC cars and boats
• Robotics and DIY electronics
• LiPo battery monitoring during field use
• Battery testing and maintenance
• Over-discharge protection for LiPo packs
• Ideal for hobbyists, FPV pilots, and RC enthusiasts

*Product image for illustration purposes only, actual product may vary.