UNI-T UT3550 Handheld Battery Tester – Internal Resistance & Voltage
Pickup available at Digilog Electronics
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UNI-T UT3550 Handheld Battery Tester – Internal Resistance & Voltage
UNI-T UT3550 — The UT3550 measures battery internal resistance and voltage together using a 4-wire Kelvin connection and 1 kHz AC injection — the method that reveals a weak cell before it fails under load. It resolves internal resistance from 0.001 mΩ to 30 Ω at ±0.5% and voltage to 100 V at ±0.05%, covering everything from small consumer cells to large industrial battery banks. Genuine UNI-T product supplied by Digilog.pk with warranty.
Key Features
- AC-injection internal-resistance method (1 kHz)
- Internal resistance 0.001 mΩ to 30 Ω, ±0.5%
- Voltage 0.0001 V to 100 V, ±0.05%
- 4-wire Kelvin connection removes lead resistance
- Comparison function with pass/fail sorting
- Data logging to 500 groups; CSV export over USB-C
- Dual display (LCD & OLED); IP65 sealing
Technical Specifications
| DC Voltage In | 100 V (0.0001 V to 100.00 V) |
|---|---|
| Internal Resistance Range | 0.001 mΩ to 30.00 Ω |
| Max Resistance | 30 Ω (0.001 mΩ to 30.00 Ω) |
| Battery Voltage Range | 0.0001 V to 100.00 V |
| Battery Test Frequency | 1 kHz±30 Hz |
| Voltage Resolution | 0.1 mV |
| Measurement Resolution | 0.001 mΩ / 0.1 mV |
| Accuracy | Resistance: ±0.5%rdg±5dgt , Voltage: ±0.05%rdg±5dgt |
| Auto Ranging | Yes |
| Test Method | 4-Wire Kelvin |
| Comparison Function | Yes |
| Data Logging | Yes |
| Programmable | Yes |
What's in the Box
- Bench digital multimeter
- Power cord
- Test leads
- USB cable
- English user manual
- Calibration certificate
Downloads
Certifications: CE, RoHS | HS Code: 9030.31
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