This is the 1V variant of the 3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module in Battery Protection Board. Available at ₹103.84 (₹88.00 + GST) with free shipping across India.
3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V with Balance for Drill Motor Lipo Cell Module
The 3 Series 40A 18650 Lithium Battery Protection Board (11.1V / 12.6V) with Balance for Drill Motors and LiPo Cell Modules offers an automatic recovery function and features integrated 10 low-resistance MOSFETs.
This board supports a continuous discharge current of up to 40A, with a 100mA balancing current, making it ideal for use in devices like electric drills, sprayers, LED lights, and low-power inverters. (Note: If the cooling environment is suboptimal, it is recommended to reduce the load current.)
Designed for 3.6V or 3.7V lithium batteries (such as 18650, 26650, and polymer Li-ion batteries), the board’s charging voltage range is 16.8V to 18.1V. It supports a continuous charge current of up to 20A, and the balanced version can handle startup currents below 80A, with a maximum power output of 135W for drills (with balancing enabled).
The module is compact, measuring approximately 46 x 60 x 3.4 mm, making it easy to install either in a tight space or directly onto the battery pack itself.
Features:
3S 11.1V 12.6V 40A 18650 lithium battery protection board (comes with recovery function-AUTO Recovery).
Application: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650.26650, a polymer lithium battery).
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use).
Continuous charge current (upper limit): 20A.
Suitable for the drills with starting current below 80A, power 135W below.
Specifications:
| Battery | 3 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) | 41 |
| Height (mm) | 3.5 |
| Weight (gm) | 9 |
Package Includes:
1 x 3 Series 40A 18650 Lithium Battery Protection Board.
Note:
The Successful start of the drill requires a three 15C-20C power battery, or six 10C-15C power battery (ordinary 18650 cannot start the drill!!).
Strictly according to map wiring 0V, 4.2V, 8.4V, 12.6V, 16.8V, do not deliberately short circuit.
When the load of the brush motor is used, try to connect a non-polar capacitor (withstand voltage above25V, capacity 10uF-100uF) to the motor’s positive and negative terminals to prevent the reverse spike from the motor. Break the MOS tube.
4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use it in series. The Discharge test, the voltage drop faster battery that group is a poor battery.
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Read More →Technical Specifications
| Voltage Range | 11.1V - 12.6V |
|---|---|
| Current Rating | 40A |
| SKU | AI0500 |
| Weight | 0.01 kg |
| Availability | Out of Stock |
Applications & Use Cases
The 3 Series 40A 18650 Lithium Battery Protection Board 11.1V 12.6V 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
Jayesh Pandey (verified owner) –
Good quality 3 Series 40A 18650 Lithium Battery. Minor vibration at high speed but acceptable for my project.
Ananya Modi (verified owner) –
Pretty good 3 Series 40A 18650 Lithium Battery. Using it in my conveyor project. Performs reliably.
Rahul (verified owner) –
👍
Pooja Patel (verified owner) –
Superb 3 Series 40A 18650 Lithium Battery! Torque is exactly as specified. My project runs perfectly with this.
Ravi Rathore (verified owner) –
Perfect 3 Series 40A 18650 Lithium Battery for my automation project. Speed control works beautifully.
Eshan Tiwari –
Perfect 3 Series 40A 18650 Lithium Battery for my automation project. Speed control works beautifully.
Nikhil Singh (verified owner) –
Love this 3 Series 40A 18650 Lithium Battery. Silent operation and consistent speed. Worth every rupee.
Sanjay Rajan (verified owner) –
Superb 3 Series 40A 18650 Lithium Battery! Torque is exactly as specified. My project runs perfectly with this.
Lalremsiama Renthlei (verified owner) –
Pankaj Rathore (verified owner) –
Very satisfied with this 3 Series 40A 18650 Lithium Battery. My robotic arm moves precisely with this motor.
Atharv Krishnan (verified owner) –
Very satisfied with this 3 Series 40A 18650 Lithium Battery. My robotic arm moves precisely with this motor.
Milan Rathore (verified owner) –
Decent 3 Series 40A 18650 Lithium Battery. Works as expected. Shaft length is adequate for most applications.
Varun Thakur (verified owner) –
Perfect 3 Series 40A 18650 Lithium Battery for my automation project. Speed control works beautifully.
Chirag Kohli –
Good 3 Series 40A 18650 Lithium Battery. Runs well but generates a bit of heat under full load.