The 4 Series 30A 18650 Lithium Battery Protection Board (14.8V–16V) is built to provide safe and stable management for lithium-ion and 18650 battery packs. With its integrated low-resistance MOSFETs and AUTO recovery function, it ensures efficient charging and discharging while protecting your cells from damage.
This 4 Series 30A 18650 Lithium Battery Protection Board supports a continuous discharge of 30A and can handle peak loads up to 60A. Featuring a balancing circuit, it equalizes cell voltages to improve battery cycle life and performance. The design makes it suitable for electric drills, sprayers, LED lights, and small inverters.
🔧 Key Features
- Designed for 4S lithium-ion battery packs
- Supports 30A continuous and 60A peak current
- Integrated cell balancing function for longer cycle life
- Automatic recovery and MOSFET protection design
- Multi-level safety: overcharge, over-discharge, short circuit
- Compact and lightweight for easy installation
📐 Technical Specifications
| Product Name | 4 Series 30A 18650 Lithium Battery Protection Board |
| Cell Configuration | 4S (4 cells in series) |
| Nominal Voltage | 14.8V – 16V |
| Supported Cell Types | 18650, 26650, Li-ion, Li-polymer |
| Continuous Current | 30A (discharge/charge) |
| Peak Current | 60A (short duration) |
| Charge Current Limit | 20A |
| Balancing Current | ~60mA |
| Operating Temperature | -30°C to +80°C |
| Dimensions | 46 × 60 × 3.4 mm |
| Weight | ~17 g |
| Protection Features | Overcharge, over-discharge, overcurrent, short circuit |
📌 Applications
- Electric drills and small power tools
- Sprayers and LED lighting systems
- Portable battery packs and DIY energy projects
- Low-power inverters and backup systems
- Custom lithium-ion battery assemblies
💡 Why Choose This Product?
This protection board ensures safe and efficient operation for lithium battery packs. With 30A continuous current handling, balancing support, and robust protective features, it’s the ideal solution for extending the lifespan and stability of your 4S Li-ion batteries.
📦 Package Includes
- 1 × 4 Series 30A 18650 Lithium Battery Protection Board
- 1 × Battery Connecting Cable















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