• Includes L2020 Leads

• Does not include wireless adapter; see accessories and other versions
• Measures resistance, voltage, and temperature
• Battery measurement can be performed while the battery is connected to its host device, without taking it offline
• Measure and save data in as fast as 2 seconds, a 60% improvement from the legacy 3554

Hioki portable battery testers support the maintenance of UPS and storage batteries critical to the life support of all businesses. The BT3554-50 battery internal resistance tester sets the standard for assessing the deterioration and remaining life of UPS and other lead-acid batteries by giving a complete diagnosis via battery resistance testing.

The new Battery Tester BT3554-50 sets a new standard for UPS and lead-acid battery diagnostics. Since the battery’s internal resistance and voltage are measured using the impedance method, diagnostics can be performed while the battery is connected to its host device, without taking it offline. Proprietary noise reduction technology allows more accurate measurement, even in noisy environments.

The L2020 Pin Type Lead has a 4-terminal structure that can be used in small spaces where there may be difficulty in contacting an object to be measured, such as during an emergency battery maintenance.

Since the conductor contact pins have an outside diameter of 2.9 mm, they can be used to measure batteries via the battery terminal cover’s test holes without needed to remove the cover.

By using its comparator function to simultaneously measure the internal resistance and voltage of a lead-acid, nickel-cadmium, or nickel-hydride battery, the BT3554-50 can generate comparative judgments quantifying degradation of the cell based on user-specified threshold values.

Furthermore, voltage sign detection facilitates instantaneous determination of whether batteries have been connected properly in newly installed UPS systems.

The BT3554-50 auto-hold function automatically holds measured values once they stabilize. The instrument’s auto-memory function, which automatically stores measured values resulting from the auto-hold function in its internal memory, further streamlines work tasks.

*Image shows optional WiFi. Sold separately.

If you’re measuring a number of batteries in a large area, use the included shoulder strap to carry the instrument with you while making measurements. Or if there are numerous batteries at a single location, use the Magnetic Strap Z5020 (sold separately) to hang the instrument on the wall while you work.