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21700 Cell Charge & Discharge Tester – Internal Resistance & BMS Protection Board Analyzer

MOQ: 1 Pcs (Min. Order)
SKU: SW-CS1000

The SW-CS1000 is a digital multi-function battery tester designed for 21700 and other cylindrical cells. It supports charge/discharge cycling, internal resistance measurement, and BMS protection board testing. With multiple test modes including auto, dynamic, and OCP tests, it delivers wide-range, high-accuracy measurements—ideal for R&D, production QC, and after-sales maintenance.

Parameter Specification
Country of Origin China
Customization Support Yes
Model No. SW-CS1000
Type Digital
Current Measuring Range 0 – 120(A)
Current Measuring Accuracy ±0.1(A)
Voltage Measuring Range 1.70V – 3.20V(V)
Voltage Measuring Accuracy ±0.1(V)
Internal Resistance Range 0 – 300(mΩ)
Internal Resistance Accuracy ±1(mΩ)
Temperature Measuring Range -10 – 40(℃)
Temperature Measuring Accuracy ±0.2(℃)
Capacity Measuring Range 0.1(AH)
Capacity Measuring Accuracy ±0.1(AH)
Power Supply Voltage 220(V)
Power Consumption 600(W)
Weight 30(Kg)
Dimensions(L×W×H) 460 × 360 × 110(mm)
Supported Test Modes Auto Test, Dynamic Test, Battery Test, OCP Test, etc.
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SW-CS1000 Battery Comprehensive Tester – Accurate, Versatile, Reliable

The SW-CS1000 is a digital integrated tester specifically designed for lithium-ion batteries and protection circuit boards (BMS). It is widely used for production testing and quality control of 21700, 18650, and other cylindrical cells, as well as battery packs.

Core Functions
This unit combines charge/discharge capacity testing, internal resistance measurement, temperature monitoring, and BMS protection board validation into one system. It supports multiple operating modes including auto test, dynamic test, battery cycle test, and OCP (overcurrent protection) test—switchable with a single touch for easy operation.

Wide Range & High Accuracy

  • Current range: 0–120A, accuracy: ±0.1A

  • Voltage range: 1.70V–3.20V, accuracy: ±0.1V

  • Internal resistance range: 0–300mΩ, accuracy: ±1mΩ

  • Capacity measurement accuracy: ±0.1AH, enabling effective evaluation of actual battery capacity

Stable and Production-Ready
Powered by 220V supply with 600W power rating, the unit weighs 30Kg and features a rugged structure. Its compact dimensions of 460×360×110mm make it ideal for benchtop placement. With an operating temperature range of -10°C to 40°C, it adapts well to various workshop environments.

Customizable Options
Customization is supported—test parameters and interface configurations can be adjusted to meet specific cell specifications and testing standards.

Whether you need incoming material inspection, aging testing, or BMS function verification, the SW-CS1000 delivers an efficient and accurate testing solution for your operations.

Why Chooes Us?

Icon Title Tagline
🎯 3-in-1 Tester Charge/Discharge + Internal Resistance + BMS protection board testing – all integrated into one compact unit.
📊 Wide-Range Accuracy Measures up to 120A, 3.20V, and 300mΩ with consistent, reliable precision.
🏭 Production-Ready Rugged design, flexible customization, and direct factory support for demanding production environments.

Product Attributes

Parameter Specification
Country of Origin China
Customization Support Yes
Model No. SW-CS1000
Type Digital
Current Measuring Range 0 – 120(A)
Current Measuring Accuracy ±0.1(A)
Voltage Measuring Range 1.70V – 3.20V(V)
Voltage Measuring Accuracy ±0.1(V)
Internal Resistance Range 0 – 300(mΩ)
Internal Resistance Accuracy ±1(mΩ)
Temperature Measuring Range -10 – 40(℃)
Temperature Measuring Accuracy ±0.2(℃)
Capacity Measuring Range 0.1(AH)
Capacity Measuring Accuracy ±0.1(AH)
Power Supply Voltage 220(V)
Power Consumption 600(W)
Weight 30(Kg)
Dimensions(L×W×H) 460 × 360 × 110(mm)
Supported Test Modes Auto Test, Dynamic Test, Battery Test, OCP Test, etc.