Shenzhen Kinglisheng New Energy Technology Co., Ltd.
                                                                                                           
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12 Years
Since 2014
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3S 4S 5S Li-Ion Battery BMS Board - 20A Discharge Current, 60x32mm Size for Power Tools

Price Negotiable
Price: $0.1-$50.0/PCS
MOQ: 10PCS
Delivery Time: 5-8 Work Days
Brand: KLS
Product Description
Product Overview

3S/4S/5S Battery Management System (BMS) designed for Li-Ion lithium battery packs in power tools and electric vehicles. Features 12.6V/16.8V/21V voltage options with 20A maximum working current.

Technical Specifications
Parameter Specification
Board Size 60mm × 32mm
Discharge Current 20A Maximum
Battery Strings 3S / 4S / 5S
Protection Functions Short Circuit, Over Charge, Over Discharge, Over Current
Selectable Functions Balance Function, Temperature Sensor
Board Thickness 0.5-4OZ / Custom
Copper Thickness 0.2-6mm / Custom
Certifications CE, FCC, RoHS, ISO9001, ISO14001, REACH, ISO13485
Key Features
  • Same-port interface design for simplified wiring
  • High-performance chips and MOS transistors for stable operation
  • Rapid response protection functions for battery safety
  • Customizable voltage, current, and balance settings
  • Temperature detection via NTC port for thermal protection
  • Compatible with LiFePO4, Li-ion, LTO, and NMC battery chemistries
Applications

Electric bicycles, motorcycles, e-bikes, wheelchairs, tricycles, low-speed vehicles, power tools, startup power systems, and energy storage applications.

Product Images
3S 4S 5S BMS board front view showing component layout and connections
BMS board side view displaying thickness and connector details
Close-up of BMS board components including protection IC and MOSFETs
Installation Guidelines
  • Requires basic electronics technical expertise for installation
  • Connect B- wire first to battery negative terminal using short, thick wire
  • Use thick wires for P+/P- connections to prevent board damage
  • Ensure all connections are secure and properly soldered
Professional Support: We provide 7x24 online service, technical guidance, and custom solutions. Contact our engineering team for specific application requirements.
Contact Information

Mobile & WhatsApp & WeChat: +8617779781189

Email: sale10@jlspcba.com

Brand: KLS (Custom OEM/ODM Available)

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Kinglisheng New Energy Technology Co., Ltd.
Location Room 101, Building 4, North Yongfa Science Park, Xinhe Road, Gonghe Community, Shajing Street, Shenzhen, Guangdong, China
Contact Person Miya

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