Fluke FLUKE-BT521 Battery Analyzer

Overview

The Fluke FLUKE-BT521 is an advanced battery analyzer designed for maintenance, troubleshooting, and performance testing of individual stationary batteries and battery banks in critical backup power applications. It supports measurements on all types of stationary batteries including GEL, AGM (Absorbed Glass MAT), and float open cells. The intuitive interface and compact, rugged design ensure reliable testing in demanding data center, telecom, and power distribution environments.

Key Features

• Measures battery resistance, AC/DC voltage, AC/DC current, ripple voltage, frequency, and battery temperature
• Sequence measurement mode for automatic or manual testing of battery strings with automatic data storage
• Comprehensive data logging with automatic capture during testing for on-the-go analysis
• Optimized user interface with guided setup and visual/audio feedback to reduce measurement errors
• Threshold comparison with configurable reference values and visual/verbal feedback after each measurement
• Intelligent test probe set (BTL21) with integrated LCD display, infrared temperature measurement, flashlight, and verbal audio feedback
• Enhanced data analysis with included battery management software
• Wireless communication for remote data download via iOS app and email reporting
• PDF report generation on PC software with analysis graphics and data tables
• Three-year manufacturer warranty

Applications

• Data center battery backup systems
• Telecom network uninterruptible power supply (UPS) systems
• Power distribution system battery maintenance
• Critical infrastructure backup power testing

Included Accessories

• BTL21 Intelligent Test Leads & Extenders (with temperature measurement)
• BTL10 Test Leads
• Magnetic hang strap and shoulder harness
• Zero Ohm calibration resistor
• BC500 AC charger
• BTL-A probe adapter
• i410 current clamp
• TL175 test leads
• Probe tip covers and extra probe tips (2 sets)
• Probe lights (2 units)
• Adhesive paper battery tags (100 units)
• Large soft carrying case
• AC line cord