This is the 4V variant of the 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module in Battery Protection Board. Available at ₹54.28 (₹46.00 + GST) with free shipping across India.
2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module
This 2S 5A 8.4V 18650 lithium battery protection module is designed to safeguard your batteries from overcharging, over-discharging, overcurrent, and short circuits. It features high-quality, precision imported components for the main IC and premium MOSFETs from trusted brands like VISHAY, AOS, and IR, ensuring reliable performance.
The module is built on a low-temperature coefficient FR-4 board and undergoes rigorous testing to ensure safety and functionality. Its compact design makes it ideal for applications that require high integration at a low cost, while meeting the performance demands of various projects. This protection module offers peace of mind by ensuring the absolute safety of your battery pack, making it a reliable solution for a wide range of battery-powered applications.
Protections:
- Short circuit protection.
- Overcharge protection.
- Over-discharge protection.
- Over-current protection.
Connections:
MB: The Common connection point between the batteries.
B : Battery V Positive.
B-: Battery V- Negative.
P : Charging V .
P-: Charging V-.
Specifications:
- Maximum Working Current: 5A.
- Transient Current: 7A.
- Operating Temperature: -40-50℃.
- Internal Resistance: Less than 45m Ω.
- B B-: The interface of battery core.
- P P-: The connector of the battery board.
Package Includes :
1 x 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module.
2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Overview
This 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module is designed to manage and safeguard two-cell 18650 lithium battery packs. It provides precise overcharge, over-discharge, overcurrent and short-circuit protection for reliable charging and discharging in compact battery applications.
Key Features of 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection
- Input Voltage Range: 8.4–9V for direct connection to standard 2S chargers or adapters
- Overcharge Detection: 4.25–4.35V ±0.05V per cell to prevent cell damage
- Over-Discharge Detection: 2.3–3.0V ±0.05V per cell for extended battery life
- Maximum Continuous Current: 5A handling typical charge/discharge loads
- 7A Transient Current Capacity for surge protection in high-load conditions
- High-quality imported main IC and premium MOSFETs (VISHAY, AOS, IR) on FR-4 board
- Fast shipping from Zbotic with genuine, tested modules in stock
Applications and Use Cases
- DIY 2S 18650 battery packs for portable power banks
- Battery management in handheld LED lighting systems
- Power source protection for small robotics and Arduino projects
- Backup power modules for IoT devices and sensors
- Replacement protection board in RC cars and drones with 2S packs
- Solar energy storage modules using 2-cell 18650 configurations
How to Use 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection
Begin by wiring your two-cell 18650 pack in series and connecting the battery negatives and positives to the B– and B+ pads on the module. Attach your charger’s 8.4–9V input to the same B–/B+ terminals. The P– and P+ pads then serve as the protected output for your load. Ensure correct polarity, secure solder joints, and test with a small load before full operation.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
Does this board support continuous 5A charging and discharging?
Yes, the module is rated for a continuous working current of 5A, with transient handling up to 7A to accommodate brief surges.
How do I wire my 2S 18650 pack correctly?
Connect the negative of cell one to B–, the positive of cell two to B+, and join the cell junction between cells to the middle battery terminal. The P– and P+ pads serve as the protected load/charge terminals.
What protection features are integrated into this module?
This board provides overcharge detection at 4.25–4.35V per cell, over-discharge detection at 2.3–3.0V per cell, overcurrent protection at 5A continuous (7A transient), and short-circuit protection to safeguard your pack.
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| Operating Voltage | 8.4V |
|---|---|
| Current Rating | 5A |
| Cell Configuration | 2S |
| SKU | AI3439 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The 2S 5A 8.4V 18650 Lithium Battery Charger Board Protection Module is a versatile battery protection board used across a wide range of applications including lithium battery pack protection, power bank builds, e-bike battery management, solar energy storage, and UPS systems.
Common use cases:
- Building a custom lithium battery pack
- Adding overcharge/overdischarge protection
- Creating a DIY power bank
This product is ideal for battery pack builders and power electronics engineers.
Technical Tip: BMS boards prevent overcharge, overdischarge, overcurrent, and short circuit. Match cell count (S) and max current rating to your battery pack.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
