The 11.1-12.6V 3S Lithium Battery Capacity Indicator is a compact and practical module for monitoring battery charge levels in real time. Specially designed for 3S lithium-ion packs, it delivers precise voltage-based readings, helping you track power usage efficiently in drones, e-bikes, and other battery-powered devices.
Equipped with reverse connection protection, the 11.1-12.6V 3S Lithium Battery Capacity Indicator safeguards the circuit from wiring mistakes. Its LED display features a red outline and blue segments, clearly showing charge levels, with all LEDs lighting up when the battery is fully charged.
Easy to operate, the 11.1-12.6V 3S Lithium Battery Capacity Indicator connects directly to the positive and negative terminals of the battery. Once installed, it instantly displays the remaining capacity, ensuring reliable and safe monitoring in any application.
With durable construction and simple plug-and-play functionality, the 11.1-12.6V 3S Lithium Battery Capacity Indicator is ideal for hobbyists, engineers, and DIY enthusiasts who need accurate and clear charge level indication.
🔧 Key Features
- Supports 3S Lithium-ion batteries (11.1V–12.6V)
- Clear LED display with red outline and blue indicator block
- Reverse polarity protection for safe use
- Simple two-wire connection for quick setup
- Durable module for long-term operation
📐 Technical Specifications
| Product Name | 11.1-12.6V 3S Lithium Battery Capacity Indicator |
| Battery Compatibility | 3S Lithium-ion packs (11.1V–12.6V range) |
| Display Type | Multi-segment LED with visual full-charge alert |
| Protection Feature | Integrated reverse polarity safeguard |
| Connection Method | Direct 2-wire hookup to battery terminals |
| Voltage Range | 11.1V – 12.6V |
| Applications | Drones, EV batteries, robotics, DIY power projects |
| Build Quality | Compact PCB with durable housing |
| Operation | Plug-and-play capacity monitoring |
| Package Contents | 1 × Battery Capacity Indicator Module |
📌 Applications
- Battery health monitoring in drones and UAVs
- Charge level display in EV and e-bike systems
- DIY robotics and embedded projects
- Portable testing and lab power equipment
💡 Why Choose This Product?
This module delivers safe, accurate, and user-friendly charge level monitoring for lithium-ion packs. Its clear LED display and built-in safety features make it a valuable tool for professionals and DIY users alike.
📦 Package Includes
- 1 × 11.1-12.6V 3S Lithium Battery Capacity Indicator







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