Shenzhen Kinglisheng New Energy Technology Co., Ltd.
                                                                                                           
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12 Years
Since 2014
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KLS-137 4S 12V LiFePO4 Battery Management System with 80A Max Current and 90×54mm Dimensions

Price Negotiable
Price: $6.60/pieces 1-49 pieces
MOQ: 10PCS
Delivery Time: 5-8 Workdays
Brand: KLS
Product Description
Product Overview

KLS LiFePO4 Balance BMS for electric vehicles and scooters - a versatile battery management system supporting 4S configuration with multiple current ratings from 10A to 80A for 12V LiFePO4 battery packs.

KLS-137 BMS for 4S LiFePO4 battery pack with balance function
Key Features & Protection Functions
  • Compatible with 3S battery pack configurations
  • Supports Li-ion, LiFePO4, NMC, and Sodium ion battery chemistries
  • Comprehensive protection: over-charging, over-discharging, over-current, short circuit, and temperature protection
  • Built-in balance function for optimal cell performance
  • High-quality MOS components for extended battery cycle life
  • Aluminum alloy heat sink for efficient heat dissipation at high working currents
Technical Specifications
Parameter Specification
Product Name 4S, 80A MAX NMC Battery BMS with Balance
Model KLS-137
Dimensions 90 × 54mm
Port Configuration Common port for charge/discharge
Customization Available for 3S-32S lithium batteries with different current ratings
MOQ 1 piece
Delivery Time 1-7 working days
Product Images
KLS-137 BMS technical specifications and wiring diagram KLS-137 BMS circuit board layout and component details KLS-137 BMS installation and connection guide KLS-137 BMS thermal management and heat sink design KLS-137 BMS quality testing and certification details KLS-137 BMS application examples and use cases
Frequently Asked Questions
Why Choose KLS BMS?
  • 10+ years of technical support and efficient after-sales service
  • FCC, CE, ROHS, ISO international certifications
  • Factory-direct pricing with controlled delivery times
Product Range & Customization

Specializing in battery management systems for power batteries, energy storage batteries, and consumer batteries, primarily for LFP and NCM battery chemistries.

Ordering & Delivery

Minimum order quantity: 1 piece. Custom ODM solutions available. Sample delivery: 1-3 days for existing models, 3-15 days for custom designs.

Quality Assurance
  • Strict inspection procedures from raw materials to shipment
  • Full product inspection implementation
  • 2-year after-sales warranty service
Contact Information

For technical consultation and product selection assistance, please contact:

Email: sale10@klspcba@com

Available via WhatsApp, WeChat, and other communication platforms.

KLS BMS technical support and customer service contact information

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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