This is the 8V variant of the 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module in Battery Protection Board. Available at ₹127.44 (₹108.00 + GST) with free shipping across India.
4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell Module
This product is a 4 Series 40A 18650 Lithium Battery Protection Board with Balance for 14.8V to 16.8V batteries. It is suitable for lithium batteries with a nominal voltage of 3.6V or 3.7V, such as 18650, 26650, or polymer lithium batteries. can charge the batteries with a voltage range of 16.8V to 18.1V and a continuous charge current of up to 20A. It can also discharge the batteries with a continuous current of 40A and a balanced current of 100mA.18650 Lithium Battery Protection Board has an auto-recovery function and uses 10 low-resistance MOS tubes. It is ideal for electric drills, sprayers, LED lights, or low-power inverters with a starting current below 80A and a power below 135W (with balance). It has a compact size and can be easily installed on the battery pack itself.
Note:
This product is a protection board with balance for 4 Series 40A 18650 lithium batteries. It works with lithium batteries that have a nominal voltage of 3.6V or 3.7V, such as 18650, 26650, or polymer types. It can charge the batteries at a voltage between 16.8V and 18.1V and a maximum current of 20A. It can also discharge the batteries at a maximum current of 40A and a balanced current of 100mA. It has a self-recovery feature and uses 10 low-resistance MOS tubes. It is suitable for electric drills, sprayers, LED lights, or low-power inverters that have a starting current less than 80A and a power less than 135W (with balance). It has a small size and can be easily attached to the battery pack itself.
Features:
This is a lithium battery protection board with four strings and 16.8V 40A. It has an auto recovery function.
It can be used with lithium batteries that have a nominal voltage of 3.6V or 3.7V, such as 18650, 26650, or polymer lithium batteries.
The product weight is 9.3g for the standard or enhanced version, and 10.3g for the balanced version.
The charging voltage range is 16.8V to 18.1V. The maximum continuous discharge current is 40A, but it should be reduced if the cooling environment is poor.
The maximum continuous charge current is 20A.
The balanced version is suitable for drills with a starting current below 80A and a power below 135W.
Specification:
| Battery | 4 Cell |
|---|---|
| Overcharge detection voltage (V) | 4.25 ± 0.025 |
| Over-discharge detection voltage (V) | 2.50 ± 0.08 |
| Over current Protection (A) | 40 |
| Working current (A) | 20 |
| Operating Temperature (°C) | -40 ~ +85 |
| Length (mm): | 60 |
| Width (mm) | 45 |
| Height (mm) | 3.5 |
| Weight (gm) | 12 |
| Shipping Weight | 0.016 kg |
| Shipping Dimensions | 9 × 5 × 1 cm |
Package Includes:
1 x 4 Series 40A 18650 Lithium Battery Protection Board.
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Read More →Technical Specifications
| Voltage Range | 14.8V - 16.8V |
|---|---|
| Current Rating | 40A |
| SKU | AI3445 |
| Weight | 0.01 kg |
| Availability | In Stock |
Applications & Use Cases
The 4 Series 40A 18650 Lithium Battery Protection Board 14.8V 16.8V with Balance for Drill Motor Lipo Cell 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
