Neware CT-9008-SD-5V300mA Self-Discharge Tester, ENCT9008SD5V300mA
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The Neware CT-9008-SD-5V300mA is a specialized high-precision instrument within the 9000-series "Ultra" family. While standard cyclers measure capacity and cycle life, the SD (Self-Discharge) model is engineered specifically to quantify the minute electrochemical leakage that occurs when a battery is at rest.
The "SD" variant prioritizes voltage stability and current resolution over raw power. (1) Voltage Accuracy: 7-digit resolution with a stability of ±0.01% FS. This extreme precision is required to detect millivolt drops over long rest periods. (2) Current Resolution: 0.1 μA (100 nA). It can perceive the tiniest fluctuations in parasitic current. (3) Current Range: 0 to 300 mA (optimized for small-format pouch and coin cells). (4) Input Impedance: ≥1000 MΩ. High impedance is critical so that the tester itself doesn't "drain" the battery while trying to measure its self-discharge. (5) Four-Range Switching: Like other 9000-series units, it automatically shifts between four current ranges (starting at the 150 μA scale) to maintain 0.02% accuracy across the entire spectrum.
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| Power |
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Voltage Features |
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| Current Features |
Range 1: 0-0.3 mA Range 2: 0.3-3 mA Range 3: 3-30 mA Range 4: 30-300 mA
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