BT6065

Precision OCV/IR testing for Next-gen High-capacity Battery

The Precision Battery Tester BT6065 and BT6075 are designed for OCV/AC-IR testing of high-capacity EV battery cells with low internal resistance. The extremely high resolution enables these models to perform advance cell-grading. These testers powerfully facilitate the creation of reliable and efficient OCV/IR testing systems with their innovative features and capability of high-speed testing.

Excellent resistance measurement resolution and accuracy

AC-IR offers a 10 nΩ resolution. At a measurement current of 300 mA, stable measurement data is obtained with an excellent SN ratio suitable for inspecting low-resistance batteries.

Voltage measurement accuracy comparable to a high-precision voltmeter

No additional voltmeter is needed for OCV/IR testing. Both models, one with 7-1/2 digits (resolution of 1 µV) and the other with 6-1/2 digits (resolution of 10 µV) feature unparalleled measurement accuracy.

Stable measurement with the MIR mode (mutual interference reduction)

Ordinarily, mutual interference causes measured values to fluctuate when making simultaneous measurements with two battery testers placed in close proximity. The MIR mode reduces mutual interference to ensure stable measurement. The feature makes possible accurate, high-speed parallel-testing with two testers.

• No need for additional accessories like sync cables
• Unlike an older technology known as pulse output functionality, the MIR mode facilitates reliable parallel testing.

Compensation of individual channels with referential adjustment

When measuring rows of batteries in a tray, eddy currents occurring in the metal enclosures of adjacent batteries cause measurement error.
The referential adjustment function, which accurately compensates for the effects of eddy currents by using actual batteries as a reference, allows more accurate measurement.

• Referential adjustment: up to 528 channels
• Adjustment data for up to six batteries (6 × 528 channels) can be saved on the instrument using its "panel save" feature.