Fluke BT521 Battery Tester | Professional Battery Analyser

Original price was: $7,566.00.Current price is: $6,190.00. .( $6,809.00 inc. GST )

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Professional Fluke BT521 Battery Tester for accurate battery analysis. Advanced testing capabilities, intuitive interface, and reliable results for maintenance teams.

Fluke 500 Series Datasheet

SKU: 4489996 Categories: Battery Analyzers, FLUKE Tags: Battery Tester, Fluke Brand: Fluke

The Fluke BT521 Battery Tester delivers comprehensive battery analysis capabilities designed for professionals who demand precision and reliability in their testing operations. This advanced battery analyzer combines cutting-edge technology with user-friendly operation, making it the preferred choice for maintenance teams across industrial, telecommunications, and critical power applications.

Engineered to test lead-acid batteries from 1.5V to 48V, the BT521 provides accurate measurements of battery capacity, internal resistance, and overall health status. The device employs sophisticated conductance testing methodology that delivers results without fully discharging the battery, enabling efficient testing without interrupting critical operations.

The intuitive interface features a large colour display that presents test results clearly, whilst the rugged construction ensures dependable performance in demanding environments. With its ability to test both individual cells and complete battery strings, the BT521 streamlines maintenance workflows and reduces testing time significantly.

This professional-grade battery testing tool stores up to 100 test records, enabling technicians to track battery performance over time and make informed maintenance decisions. The device’s comprehensive reporting capabilities support predictive maintenance programmes, helping organisations avoid unexpected battery failures and costly downtime.

The BT521’s versatility extends to multiple battery types, including VRLA, flooded, gel, and AGM batteries commonly found in UPS systems, telecommunications infrastructure, and emergency lighting applications. Temperature compensation features ensure accurate readings across varying environmental conditions, whilst the robust probe design withstands repeated use in industrial settings.

For organisations implementing systematic battery maintenance programmes, the BT521 provides the reliability and accuracy needed to maintain critical power systems effectively. Its combination of advanced testing capabilities, durable construction, and user-friendly operation makes it an essential tool for facilities management, telecommunications maintenance, and industrial operations teams.

Key Features

Wide Voltage Range: Tests lead-acid batteries from 1.5V to 48V with exceptional accuracy
Multiple Battery Types: Compatible with VRLA, flooded, gel, and AGM battery technologies
Non-Invasive Testing: Conductance-based testing without battery discharge requirements
Large Colour Display: Clear, easy-to-read interface for efficient result interpretation
Data Storage: Stores up to 100 test records for performance tracking and analysis
Temperature Compensation: Automatic adjustment for environmental temperature variations
Rugged Construction: Industrial-grade design for demanding maintenance environments

Weight	2 kg

FAQ Section

Q: What battery types can the Fluke BT521 test?
A: The BT521 tests multiple lead-acid battery types including VRLA (valve-regulated lead-acid), flooded, gel, and AGM (absorbed glass mat) batteries commonly used in UPS systems, telecommunications, and emergency power applications.

Q: Does the BT521 require battery discharge for testing?
A: No, the BT521 uses advanced conductance testing technology that provides accurate results without discharging the battery. This non-invasive approach allows testing of batteries in active systems without interrupting operations.

Q: How many test results can the device store?
A: The BT521 can store up to 100 test records in its internal memory, enabling technicians to track battery performance trends over time and maintain comprehensive maintenance records.

Q: What is the voltage range for battery testing?
A: The Fluke BT521 can test lead-acid batteries within a voltage range of 1.5V to 48V DC, covering most common battery configurations used in industrial and commercial applications.

Q: How does temperature affect test accuracy?
A: The BT521 features automatic temperature compensation that adjusts readings based on ambient temperature conditions, ensuring consistent accuracy across varying environmental conditions from -10°C to 50°C operating range.

Q: What are the differences between the Fluke 500 Series Battery Analyzers?
A: The Fluke 500 Series includes several models with varying feature sets:

The BT510 offers basic battery analysis with essential test leads and no temperature measurement.
The BT520 provides standard battery analysis, comes with a test probe set, but does not include temperature measurement.
The BT521 is equipped with advanced features, including temperature measurement functions, and includes a complete test probe set.
The BT521ANG and BT520ANG models feature both angled and straight test probe sets for enhanced accessibility; the BT521ANG supports temperature measurement, while the BT520ANG does not. Each model is designed to address specific maintenance requirements and accessory preferences.