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The 5S 15A 18650 Lithium Battery Protection Board is a compact BMS module designed to ensure safe charging and discharging of lithium-ion battery packs. It supports up to five 18650 cells connected in series, offering reliable overcharge, over-discharge, and short-circuit protection for long-lasting performance.
Built for stability, the 5S 15A 18650 Lithium Battery Protection Board can handle a continuous load of 15A and withstand a peak discharge of 25A. The advanced circuit design automatically disconnects power during unsafe conditions, while reactivation is simple by reapplying voltage or waiting for auto-reset.
With a high cycle life and low self-consumption, this 5S 15A 18650 Lithium Battery Protection Board is ideal for DIY power banks, e-bikes, solar packs, and RC battery systems. Its robust protection features extend battery lifespan while providing consistent and safe operation.
Engineered for demanding environments, the 5S 15A 18650 Lithium Battery Protection Board delivers dependable performance across a wide temperature range, making it an essential module for anyone working with lithium battery packs.
🔧 Key Features
- Supports 5-cell 18650 lithium battery pack
- Continuous discharge current of 15A
- Instantaneous current handling up to 25A
- Overcharge and over-discharge detection with auto recovery
- Short-circuit and over-current protection for safety
- Compact, lightweight, and efficient circuit design
📐 Technical Specifications
| Product Name | 5S 15A 18650 Lithium Battery Protection Board |
| Supported Cells | 5 × 18650 Lithium-ion in series |
| Charge Voltage | 21 V (nominal) |
| Charging Current | Up to 15 A |
| Discharge Current | 15 A continuous, 25 A peak |
| Overcharge Detection | 4.28 ± 0.05 V per cell |
| Over-discharge Cutoff | 2.55 ± 0.08 V per cell |
| Short Circuit Response | 250 µs detection, load cut-off |
| Over-current Limit | 30 ± 3 A trigger with auto-release |
| Internal Resistance | ≤ 20 mΩ |
| Self-Consumption | ≤ 30 µA active, ≤ 10 µA sleep |
| Operating Temperature | -30°C to +80°C |
| Dimensions | 90.4 × 17.3 × 3.6 mm |
| Weight | Approx. 5 g |
📌 Applications
- DIY lithium battery packs (5-cell)
- RC cars, drones, and boats power systems
- Solar energy storage modules
- E-bikes and portable power banks
- Laboratory and prototyping battery setups
💡 Why Choose This Product?
The 5S 15A 18650 Lithium Battery Protection Board is engineered to protect and extend the life of your lithium battery packs. Compact, efficient, and highly reliable, it offers safety and stability for a wide range of electronics and DIY applications.
📦 Package Includes
- 1 × 5S 15A 18650 Lithium Battery Protection Board
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