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3S 18650 Lithium Battery Level Indicator – Capacity Display Module
This high-precision 3S 18650 Lithium Battery Level Indicator is designed to monitor the voltage and remaining
capacity of 3-cell 18650 battery packs. Featuring a bright LED bar display, the module gives quick and reliable
visual feedback, making it ideal for DIY power systems, portable devices and e-bike battery packs.
🔧 Key Features
- 📊 LED Bar Graph Display for instant visual capacity indication
- 🔋 Supports 3S 18650 lithium battery packs (10.8V–12.6V)
- ⚡ Accurate voltage-based battery monitoring
- 📏 Slim, compact module suitable for tight enclosures
- 🛡 Protects batteries from over-discharge by providing early warning
- 🔌 Easy 2-wire connection for quick installation
📐 Technical Specifications
| Battery Type | 3S Lithium-ion (3 × 18650) |
| Working Voltage | 10.8V – 12.6V |
| Display Type | LED Bar Level Indicator |
| Module Length | Long PCB design with 5-level LEDs |
| Accuracy | Voltage-based capacity estimation |
| Wiring | 2-wire input (VCC, GND) |
| Compatibility | DIY battery banks, e-bikes, solar packs |
| Operating Temperature | -10°C to 60°C |
| Dimensions | As shown in product image |
| Weight | Lightweight mini module |
💡 Applications
- 🔋 DIY 18650 Battery Packs: Monitor power levels accurately.
- 🚴 E-Bikes & Electric Scooters: Quick battery status indication.
- 🔌 Portable Power Banks: Add a user-friendly capacity display.
- ☀️ Solar Backup Systems: Monitor battery voltage easily.
- 🧪 STEM & DIY Projects: Ideal for learning battery management.
📦 Package Includes
- 1 × 3S Lithium Battery Level Indicator Module
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