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KYSB1S38 Replaceable Battery

The battery pack is a KYSB1S38 standard lithium battery pack that utilizes removable 18650 cells and has a gold finger connector and NTC temperature sensor. It has passed multiple international certifications, with a compact and robust design, making it suitable for portable applications such as medical and industrial equipment.

  • Nominal Voltage: 3.6V
  • Nominal Capacity: 3.3Ah
  • Internal Resistance: <100mΩ @ 1kHz at 25°C
  • Max. Charge Current: 1.65A
  • Max. Charge Voltage: 4.2V
  • Max. Discharge Current: 3.5A
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Standard Smart Lithium Battery Pack
Standard Smart Lithium Battery Pack

Overview

Product Details

Technical Parameters

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Overview

The Replaceable Battery is designed by engineers based on a small 1S modular platform. They are first aligned into a precision housing with controlled spacing of cylindrical lithium-ion cells. A clever interface connector is then added to enable quick plug-in connection and reliable electrical conductance. In the meantime, a reinforced polymer shell is created to ensure mechanical stability and insulation stability. Once the structure has been assembled, technicians will perform electronic calibration and system validation to maintain the same output behavior.

Material Composition and Internal Configuration

Manufacturers use high-energy lithium-ion cells that have stable electrochemical performance. Moreover, Panasonic-grade or similar cells are commonly chosen to ensure stable cycling and consistency in energy density. Moreover, a microporous separator is placed between electrodes to control the flow of ions and minimize the risk of internal shorts. In the meantime, a lithium salt electrolyte is injected under controlled humidity conditions to guarantee chemical stability. Copper alloy terminals are added to enhance conductivity, and insulating layers ensure electrical isolation throughout the pack.

Smart Control System and Electrical Logic

A smart Battery Management System (BMS) is incorporated by engineers to actively measure voltage, current, and temperature in real-time. The system then automatically performs overcharge, over-discharge, and short-circuit protection. Additionally, communication interfaces enable host devices to read battery status and operating conditions. In the meantime, CC/CV charging logic provides consistent charging curves with repeated cycles. Consequently, electrical performance is stable despite the varying load conditions.

Manufacturing Process and Quality Control

The process starts with cell grading and matching capacity to achieve consistent performance. This is followed by automated welding to form cell terminals into a stable structure. Subsequently, technicians carry out insulation resistance testing and continuity checking. In the meantime, firmware calibration is used to guarantee the correct smart data reporting. Moreover, vibration and thermal tests confirm the structural endurance under operational stress.

Product Details

Product Features

  • 18650 Removable Lithium-ion Battery Pack
  • Meets IEC62133/UN38.3 certification
  • Gold finger interface
  • NTC temperature interface lead-out of the battery.
  • Utilizes Panasonic cells, with the highest energy density and stability available.
  • Small and strong structure.
  • Comprehensive safety protection functions, e.g., overcharge, over-discharge, overcurrent, over-temperature, and short-circuit protection.
  • Supports quick-swap operation
  • Charge with the KYSCH1S04 charging dock.

Product Application Areas

  • Class III Medical Devices
  • Precision Measuring Instruments
  • Industrial Computers
  • Non-destructive Testing Equipment
  • Portable industrial and medical devices, etc.

Technical Parameters

Overview
Initial Shipment Capacity 20%~30%
Certifications CE/FCC/IEC62133/UN38.3/REACH/RoHS/ (EU) 2023/1542
Operating Temperature 0°C ~ 50°C (Charge)
-20°C ~ 60°C (Discharge)
Storage Temperature -20°C ~ 50°C (Max)
-20°C ~ 25°C (Recommended)
Electrical Performance
Nominal Voltage 3.6V
Rated Capacity 3.3Ah
Internal Resistance <100mΩ @ 1kHz at 25°C
Max. Charge Current 1.65A
Max. Charge Voltage 4.2V
Max. Discharge Current 3.5A
Cycle Life 500 cycles ≥ 80% of rated capacity
(Test standard: CC/CV charge 1.65A/4.2V; CC discharge 0.66A to 2.5V @ 25°C)
Size Specifications
Length 75.0mm ± 0.2mm
Width 20.5mm ± 0.2mm
Thickness 20.5mm ± 0.2mm
Weight 57g±5g

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