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- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDBT-8611 is a compact, high-precision handheld battery internal resistance & voltage tester designed for 2V/6V/12V lead-acid (VRLA/flooded/gel) and lithium cells. Using the AC 4-terminal test method with advanced noise reduction and auto-frequency conversion (920Hz–1.5kHz), it eliminates contact resistance interference and delivers accurate, stable readings while the battery remains online (UPS/DC system energized).
With a 3.5” TFT touchscreen, 0.01mΩ resolution, and ±2% accuracy, it measures internal resistance, voltage, and estimates battery health/status in 1 second per cell. Lightweight (~0.5kg) and rugged, it’s ideal for substation, UPS, telecom, and industrial battery maintenance—enabling fast, safe, and reliable on-site testing.
Specifications
| Parameter | Specification |
| Measurement Method | AC 4terminal, 920Hz–1.5kHz auto freq |
| Internal Resistance | 0.01–100mΩ；0.01mΩ res；±2% rdg ±6dgt |
| Voltage | 0–16V DC；1mV res；±0.2% rdg ±6dgt |
| Display | 3.5” TFT LCD, 240×320, touchscreen |
| Data Storage | 16MB, 5000+ records；USB export |
| Power Supply | Builtin Liion, 8hrs continuous |
| Dimensions | 190×100×30mm |
| Weight | ~0.5kg |
| Operating Temp | 10°C ~ +50°C |
| Compliance | DL/T 724, IEC 60896, CE |
Applications
Core Test Objects
· 2V/6V/12V lead-acid cells: VRLA, flooded, gel
· Lithium-ion cells: 3.2V/3.7V (optional)
· Battery banks: 24V–600V DC systems
Typical Usage Scenarios
· New battery acceptance: Match cells by resistance/voltage
· Routine maintenance: Track resistance rise (early degradation warning)
· Fault diagnosis: Identify weak/imbalanced cells before failure
· Discharge reference: Test before/after discharge to locate bad cells
· UPS/telecom: Online monitoring without system downtime
Advantages
Test While System Is Live
No shutdown needed → zero downtime for critical power systems
Lab-Grade Accuracy On-Site
±2% resistance & ±0.2% voltage → reliable health data for maintenance decisions
Ultra-Fast Testing
1 second per cell → cut maintenance time by 70% vs traditional methods
One Tool for All Common Cells
2V/6V/12V lead-acid + lithium → no multiple testers required
Compact & Lightweight
0.5kg, palm-sized → easy to carry and operate single-handed
FAQ
Q: Can it test batteries while the UPS is running?
A: Yes. It supports online energized testing without shutting down the system.
Q: What’s the difference between AC 4-terminal and 2-terminal?
A: AC 4-terminal eliminates test lead/contact resistance → far more accurate for low-resistance cells.
Q: How many cells can it test per hour?
A: Up to 1200 cells/hour (1s per cell), ideal for large banks.
Q: Does it come with PC software?
A: Yes. Free software for data analysis, trend tracking, and professional report generation.
Q: What’s in the standard package?
A: Main unit, insulated test leads, USB cable, Li-ion charger, user manual, carry case.
