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The 3S 18650 Li-Po Lithium Battery Capacity Indicator Module is a compact and intuitive digital display board designed to monitor the real-time charge status of 3-cell (3S) lithium battery packs. This module is compatible with a wide range of battery types including 18650 Li-ion cells, Li-Po batteries, nickel-metal hydride, and even lead-acid batteries.
Equipped with a reverse polarity protection feature, this module prevents damage from incorrect connections. Its vibrant digital LED display clearly shows battery levels, making it ideal for electric vehicle batteries, portable tools, battery packs, and DIY projects. Simple to wire and install, it offers a reliable visual indicator of battery health and charge status.
🔧 Key Features
- Real-time battery capacity display
- Bright LED digital bar meter
- Compatible with 3S (12V) battery packs
- Supports Li-ion, Li-Po, NiMH, and lead-acid types
- Reverse polarity protection built-in
- Compact size and easy installation
📐 Technical Specifications
| Product Name | 3S 18650 Li-Po Lithium Battery Capacity Indicator Module |
| Battery Type Supported | Li-ion, Li-Po, NiMH, Lead-acid |
| Cell Configuration | 3S (3-cell in series) |
| Voltage Range | 11.1V to 12.6V |
| Display Type | 10-segment LED bar |
| Reverse Polarity Protection | Yes |
| Input Connection | Screw terminals or solder pads |
| Module Dimensions | Approx. 40mm × 15mm |
| Mount Type | Panel or enclosure mount |
| Operating Temperature | -20°C to +70°C |
| Use Case | Battery monitoring in DIY power systems |
📌 Applications
- 3S 18650 battery packs
- Electric bicycle and scooter batteries
- Solar and off-grid battery monitoring
- DIY power banks and energy storage
- Electric tools and battery-powered devices
💡 Why Choose This Product?
The 3S Battery Capacity Indicator Module is a smart and reliable choice for real-time monitoring of battery charge levels. Its reverse polarity protection, universal battery compatibility, and easy integration make it essential for hobbyists and professionals alike.
📦 Package Includes
- 1 × 3S 18650 Battery Capacity Indicator Module
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