Shenzhen Kinglisheng New Energy Technology Co., Ltd.
                                                                                                           
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12 Years
Since 2014
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Custom 4S 15A Lithium Battery BMS Board - 52mm Size with Overcharge & Short Circuit Protection

Price Negotiable
Price: $0.1-$10.0/PCS
MOQ: 10PCS
Delivery Time: 5-8 Work Days
Brand: KLS
Product Description
Product Overview
The Custom Circuit Protection BMS Board 4S 15A is a professional-grade battery management system designed for 4-series lithium battery packs. This round lithium battery BMS supports maximum working current of 15A and features comprehensive protection functions.
Technical Specifications
ParameterSpecification
Board Size52mm × 52mm
Discharge Current15A MAX
Battery Configuration4S (4-series)
Protection FunctionsShort Circuit, Over Charge, Over Discharge, Over Current
Selectable FunctionsBalance Function, Temperature Sensor
Board Thickness0.5-4OZ / Custom
Copper Thickness0.2~6mm or Custom
Surface FinishingHASL, Immersion Gold, Flash Gold, Plated Silver, OSP
CertificationsCE, FCC, RoHS, ISO9001, ISO14001, ISO13485, REACH
Warranty1 Year
Key Features
  • Same-port interface design for simplified installation
  • Compatible with LiFePO4, Li-ion, LTO, NMC, and LFP battery chemistries
  • High-performance chips and MOS transistors for stable operation
  • Rapid response function for effective battery protection
  • Customizable balanced current and voltage settings
  • Professional-grade components ensuring exceptional durability
Application Fields
Electric bicycles, motorcycles, e-bikes, e-wheelchairs, e-tricycles, low-speed cars, electric tools, startup power systems, and energy storage applications.
Product Images
Custom BMS Board 4S 15A front view showing circuit components and connections Custom BMS Board 4S 15A side view displaying board thickness and construction Custom BMS Board 4S 15A detailed circuit view showing high-quality components
Installation Guidelines
Wiring Precautions
  • Installation requires basic electronics technical expertise
  • Connect B- wire first using short, thick wire to battery negative terminal
  • Ensure B- to B- connection is short and thick to prevent malfunctions
  • Use thick wires for P+/P- connections to prevent board damage
  • Solder wired terminal to battery pack before inserting protection board
Frequently Asked Questions
Q1. Why Choose Our Company?
We provide efficient after-sales service with over 10 years of technical support, factory-direct pricing, and international certifications including FCC, CE, and RoHS.
Q2. What Battery Types Are Compatible?
Compatible with LFP (3.2V), Li-ion (3.6V/3.7V), and LTO battery chemistries.
Q3. Are Customization Options Available?
Yes, we offer ODM customization with minimum order quantity of 1 piece. Sample delivery: 1-3 days for existing, 3-10 days for customized.
Q4. What Payment Methods Do You Accept?
We accept wire transfer, cash, Visa, Mastercard, PayPal, Apple Pay, Google Pay, and real-time bank transfers.
Q5. How Do You Ensure Product Quality?
All products undergo 100% professional laboratory testing, repeated aging tests, and carry international certifications. We provide 3-year after-sales warranty with free replacement units.
Contact Information
Mobile & WhatsApp & WeChat: +8617779781189
Email: sale10@jlspcba.com
We offer 7x24 hours online service and technical support.

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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