.  . Battery Charger, Power Control . Li-ion Battery 2S 3A Charger Protection Module

Li-ion Battery 2S 3A Charger Protection Module

$3.95 (AUD)

2S 3A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module is a small PCB mounted Li-ion Lithium Battery charger protection module

122 in stock

Qty Discount
2 - 4 5%
5 - 9 8%
10 + 10%
SKU: OKY3399 Categories: ,

Recommended and Related Products.

DC-DC boost conversion power 1.5 to 4.2v to 5v boost
$2.95 (AUD) Add to Cart
14 in stock
402530 Lithium ion polymer Battery (LiPo) (3.7V 250mAh)
$9.65 (AUD) Add to Cart
49 in stock
Charge Level Indicator Voltmeter 12-60V, 72V, 84V, 96V Lithium/Lead-acid Battery
$3.95 (AUD) Options

We Ship World Wide We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company. We are an Australian owned and Based Company.

Calculate Shipping - shipping options and estimates can be found in your shopping cart.


Li-ion Battery 2S 3A Charger Protection Module is a small PCB mounted Lithium Battery charger protection module. This small and smart BMS module comes with various features like Short circuits, Overcharge, Over-discharge, Over-current protection. It is straightforward to install and convenient to use in all your DIY portable projects.

Li-ion Battery Charger  2S 3A   has Built-in three-stage over-current detection circuit (over-current 1, over-current 2, or load short circuit). MOS transistors can control the battery charge and discharge.

Therefore a BMS may also feature a precharge system allowing a safe way to connect the battery to different loads and eliminating the excessive inrush currents to load capacitors.


  • Overcharge Detection Voltage: 4.25-4.35V±0.05V
  • Over-Discharge Detection Voltage: 2.3-3.0V±0.05V
  • Maximum Working Current: 3A
  • Transient Current: 5A
  • Operating Temperature: -40-50℃
  • Internal Resistance: Less than 45m Ω
  • B+ B-: The interface of the battery core
  • P+ P-: The connector of the battery board
  • MB: The connection point between the batteries
  • B+: Battery V+ Positive
  • B-: Battery V- Negative
  • P+: Output / Charging V+
  • P-: Output / Charging V-
  • Size: Approx. 36x6x1mm/ 1.42″ x 0.24″ x 0.04″

Package included: 1 x Li-ion Battery 2S 3A Charger Protection Module

Check out our On Sale and Clearance Items 

Development  Resources: demo codes, schematics, datasheets, etc


  • Short circuit protection
  • Overcharge protection
  • Over-discharge protection
  • Overcurrent protection
  • Dissipation Power: 18650 Li-Ion Battery charging BMS


     Hackaday serves up Fresh Hacks Every Day from around the Internet.

Instructables is a community for people who like to make things. Explore, share, and do your next project with us!


     Where the world builds software

    Raspberry Pi Foundation What would you like to make today?

    Arduino‘s mission is to enable anyone to enhance their lives through accessible electronics and digital technologies.

Wikipedia is a free online encyclopedia created and edited by volunteers worldwide and hosted by the Wikimedia Foundation.



1. There may be slight size deviations due to manual measurement, different measuring methods and tools.
2. The picture may not reflect the actual colour of the item because of different photographing light, angles and display monitors.


Weight 0.002 kg
Dimensions 3.7 × 1 × .5 cm

Product Applications

We Customize Just for You!!

Tempero Systems offers many custom IoT electronic design services to help tailor our product to your exact needs. Whether you are looking for custom firmware, circuit board modifications, metal enclosures, or industrial color printing, we can help you with a wide variety of design services.

Product Reviews and FAQ's

Please login or register to ask a question. Thanks

Post Your Question


* All questions and comments are approved by a system administrator before re-posting to our FAQ product sections.