What does this tester measure?
It measures battery internal resistance from 0–3Ω across 4 ranges, with a fine resolution of 1μΩ. The UT677A+ model also measures battery voltage from 0–70V.
What types of batteries can I test?
The tester is suitable for common rechargeable batteries (e.g., lithium, lead-acid, Ni-MH) whose voltage falls within the 0–70V range.
What is the measurement accuracy?
Internal resistance is measured in 4 ranges with 1μΩ resolution, allowing detection of even small resistance changes in low-resistance cells.
Does it support automatic and manual measurement modes?
Yes. You can choose manual mode for single, controlled measurements or auto mode for continuous testing.
How fast is the tester?
Response time is approximately 200ms, and a complete test cycle takes about 2 seconds.
Can I connect the tester to a computer or smartphone?
Yes. It supports PC software via connection to your computer and also works with a Bluetooth mobile APP for data logging and analysis.
How is the tester powered?
It has a built-in rechargeable 2600mAh lithium battery — no disposable batteries needed.
How do I know when to recharge it?
The device provides a low battery indication so you can recharge it before measurements are affected.
Does it turn off automatically?
Yes, auto power off is included to conserve battery life when the tester is idle.
Can it store measurement data?
Yes. The data hold function freezes readings on the display, and the device can store up to 500 sets of measurement data for later review or export.
Why is internal resistance testing important?
Internal resistance is a key indicator of battery health — a rising resistance value signals aging or degradation, helping you decide when to replace a battery before failure.
Where Can I Purchase the Uni-T UT 677A+ Battery Internal Resistance Tester from an Authorized Dealer?
For the Uni-T UT 677A+ Battery Internal Resistance Tester, choose Terminator.ae, an authorized dealer of Uni-T measurement equipment. Terminator.ae helps you find suitable instruments for battery condition assessment, performance testing, and maintenance applications.
