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  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
  • YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board
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YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board

  • >= 1 Pieces
    $1.45

Customization:

Parameter and structure customization（Min.Order: 100 pieces）
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YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Real-Time Battery Monitoring: Equipped with an LCD display to track voltage, current, and state of charge for 2S/3S/4S Li-ion battery packs.
  • Cell Balancing & Protection: Automatically balances cells and safeguards against overcharge/overdischarge, ensuring optimal battery performance and longevity.

Key features

  • 1. Material Technology

    • With FR-4 epoxy-glass laminate material, ensure superior durability and thermal stability compared to standard PCB materials*.

  • 2. Interactive Design

    • With an LCD display for real-time charge/discharge monitoring, simplify battery management compared to non-display models*.

  • 3. Performance Parameters

    • Supports 2S to 4S Li-ion battery configurations, offering broader compatibility than single-configuration testers*.

  • 4. Scenario Solutions

    • Designed for both industrial automation and consumer electronics applications, providing versatility unmatched by single-purpose devices*.

  • 5. Certification Standards

    • Constructed with materials compliant with industry safety standards, ensuring reliability compared to uncertified alternatives*.

  • Thought

    • The selling points emphasize the product’s robust construction (FR-4 material), user-friendly interface (LCD display), adaptability across battery setups, and suitability for diverse applications. Comparative hints highlight advantages over non-display models and single-configuration alternatives, while the disclaimer ensures transparency regarding manufacturer-provided data.

Product details

YunYi BMS18650 Power Level Tester LCD Charge/Discharge Indicator Display for 2S 3S 4S Li-ion Batteries PCB & PCBA Board

The YunYi BMS18650 Power Level Tester is a high-performance PCB solution designed for precise charge/discharge monitoring of 2S/3S/4S Li-ion battery packs. Built with FR-4 material and modular design, it ensures robust electrical performance, thermal stability, and adaptability for diverse battery management applications.

Technical specifications

FeatureSpecificationBenefit
MaterialFR-4 epoxy-glass laminate, plasticEnhanced thermal stability and flame resistance
Conductive LayerCopper traces (thickness: 35μm)Low resistance for efficient power distribution
DesignGrid-patterned modular PCB layoutEasy integration into multi-cell battery systems
DisplayLCD with real-time voltage/current readoutClear, user-friendly monitoring of battery status
CompatibilitySupports 2S/3S/4S Li-ion battery packsFlexible configuration for varying battery setups

Customization guide

Adjustable parameters include:

  • Cell Configuration: Customize the number of series-connected cells (2S/3S/4S) to match battery pack requirements.
  • Display Interface: Modify LCD layout or add IoT connectivity for remote monitoring.
  • Thermal Management: Optimize FR-4 layer thickness for enhanced heat dissipation in high-power scenarios.

Get inspired

Whether you’re building a portable drone battery or a high-capacity EV storage system, the YunYi BMS18650 ensures precise voltage balancing and real-time diagnostics. Its modular design allows seamless scaling, making it ideal for prototyping, industrial automation, or consumer electronics.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Handling8.4V–16.8V (2S/3S)8.4V–21V (2S–4S)8.4V–28.8V (2S–6S)*
Temperature Range-20°C to +70°C-30°C to +85°C-40°C to +105°C*
CertificationsCE, RoHSCE, RoHS, ULCE, RoHS, UL, IP67
Cell Compatibility2S/3S2S/3S/4S2S–6S*

Supplier's note

  1. Three Key Breakthroughs:

    • FR-4 Thermal Stability: With FR-4’s 140°C glass transition temperature, you can operate in extreme environments without deformation.
    • Real-Time LCD Monitoring: The integrated display allows users to track voltage and current fluctuations instantly, reducing downtime.
    • Modular Scalability: The grid-patterned design enables rapid assembly of multi-cell systems, cutting prototyping time by 30%.

  2. Optimal Version Selection:

    • Base Model: Ideal for hobbyists or small-scale projects (e.g., RC vehicles) where cost-efficiency is prioritized.
    • Advanced Model: Suited for industrial applications (e.g., solar storage systems) requiring wider temperature tolerance and 4S compatibility.
    • Pro Model: Designed for high-demand scenarios like electric vehicles or aerospace, where extreme temperature resistance (down to -40°C) and 6S scalability are critical.

Pro Model’s expanded voltage range and certifications enable safe handling of high-density Li-ion arrays, while its IP67 rating ensures dust/water resistance in outdoor deployments. Pair this with the FR-4’s flame-retardant properties to meet stringent safety standards.

Frequently asked questions

  • Which YunYi BMS18650 model suits 3S Li-ion battery packs?

  • How to clean YunYi BMS18650's FR-4 PCB without damaging?

  • FR-4 vs Aluminum: Which is better for battery management PCBs?

  • Can YunYi BMS18650 PCB be customized for drone battery packs?

  • Is YunYi BMS18650's material RoHS certified?

  • How does YunYi BMS18650's LCD display improve battery monitoring?

  • What makes YunYi BMS18650's conductive layer reliable?

  • Does YunYi BMS18650 support real-time discharge monitoring for electric vehicles?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
FR-4 PCB SubstrateIndustrial battery systems1.6mm thickness (IEC 60335-1), UL 94 V-0 flame rating ▲▲ vs plastic alternativesThermal stability up to 130°C (▲▲ vs Industry Standard’s 105°C)Slightly heavier than plastic (▲)
Multi-Cell CompatibilityTesting 2S/3S/4S Li-ion packsSupports 2–4 series cells (IEC 62133), voltage range 7.4V–16.8VVersatile for 2–4S configurations (▲▲ vs Industry Standard’s 2S–3S limit)Requires manual setup for each configuration (▲)
LCD Display ModuleReal-time monitoring in workshops128x64 pixel resolution (ISO 13406-2), 2-second refresh rateClear voltage/current visualization (▲ vs analog dials)Limited sunlight readability (▲▲ needed for Advanced anti-glare coating)
Conductive Trace DesignHigh-current applications35μm copper thickness (IPC-2221), 0.5mm trace widthLow resistance for 10A+ handling (▲▲ vs Industry Standard’s 5A limit)Requires precise soldering (▲)
Plastic EnclosurePortable field testingPolycarbonate (ASTM D786), IP54 dust/water resistanceLightweight (▲▲ vs metal enclosures), durable for portabilityLower thermal resistance (▲ vs FR-4)
Thermal ManagementHigh-heat environmentsFR-4 substrate with 0.5°C/W heat sinks (UL 746C)Maintains performance at 85°C (▲▲ vs Industry Standard’s 70°C limit)Adds cost (▲)

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