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Fluke BT521

Fluke BT521 Battery Analyzer

Battery Analyzer

The Fluke BT521 is one of our Factory New Battery Analyzers.

Price: $4,499.99



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Fluke BT521 Features:

  • Key measurements: Battery resistance, dc and ac voltage, dc and ac current, ripple voltage, frequency and battery temperature
  • Sequence measurement mode: Automatic or manual sequence testing of battery strings with automatic measurement storage including voltage, resistance and temperature (with BTL21 intelligent test probe)
  • Comprehensive logging: All measured values are automatically captured during testing and can be reviewed on the instrument before downloading for on the-go analysis
  • Optimized user interface: Quick, guided setup ensures you're capturing the right data every time, and the combined visual and audio feedback cues reduce the risk of measurement confusion
  • Threshold comparison: Configure multiple reference values and thresholds for resistance and voltage. Comparison result feedback after each measurement via visual and verbal cues
  • Ergonomic test leads: Rugged coaxial two pole kelvin test pins with remote SAVE button reduce test time and increase efficiency
  • Test probe extenders: Long reach probes for double stacked cells
  • Intelligent test probe set (BT520 and BT521): Integrated LCD display, flashlight, verbal audio feedback and captures voltage readings and temperature logging automatically or via integrated save button
  • Enhanced data analysis: Quickly compare trends, analyze results and create reports with included battery management software
  • Easy reporting: Generate PDF report on the PC software with analysis graphics and data table or quick email format report with csv file on the mobile app
  • Wireless communication: For data download and remote display while measuring. Browse and email measurement data via iOS app
  • Battery life: 7.4 V 3000 mAh lithium-ion battery for more than eight hours continuous operation
  • USB port: For fast data download to supplied data analysis and report management application software
  • Highest safety rating in the industry: CAT III 600 V, 1000 V dc max. rated for safe measurements all around the battery power supply equipment


  • Battery analyzer
  • 4-wire test pin (set)
  • BTL10 Basic Test Lead (set)
  • TL175 TwistGuard™ Test Leads with adapter
  • L300 Attachable LED Flashlight (2)
  • BTL21 Intelligent Test Probe Set, with extender and temperature sensor
  • i410 AC/DC Current Clamp
  • BP500 lithium-ion battery
  • BC500 AC charger
  • mini-USB cable
  • Shoulder strap
  • Belt strap
  • Magnetic hanging strap
  • FlukeView® Battery Management Software
  • Soft carrying case
  • Spare fuses (2)
  • Battery tags