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  • Up to 3000mΩ resistance
  • Up to 1000VDC (BT521)
    • Up to 600VDC (BT510 & BT520)
  • 600VAC (45 to 500Hz with 800Hz filter)
  • 500Hz frequency measurement
  • Up to 6000mV AC voltage ripple test (20KHz max)
  • Comprehensive logging, AutoHold, & AutoSave
  • Users can configure a maximum of 10 sets of thresholds
    • Receive Pass/Warning/Fail indications
  • 7.4V 3000mAh li-ion battery (8hr continuous operation)
  • CAT III 600V, 1000V max safety rated
  • 3-year warranty

What's in the Box

  • Battery analyzer
  • 4-wire test pin set
  • BTL10 test lead set
  • TL175 TwistGuard test leads with adapter
  • BP500 lithium-ion battery
  • BC500 AC charger
  • mini-USB cable
  • Shoulder strap
  • Belt strap
  • Magnetic hanging strap
  • FlukeView battery management software
  • Soft carrying case
  • 2 spare fuses
  • Zero Ohm calibration resistor


The Fluke 500 series battery analyzers cover a broad range of battery test functions ranging from DC voltage and resistance tests to full condition testing. They are designed for measurements on stationary batteries of all types. Intuitive user interface, compact design, and rugged construction ensure optimum performance and reliability.

All measured values are automatically captured during testing and can be reviewed on the instrument before downloading. Meter mode takes 999 records for each measurement position with time stamp. Sequence mode provides up to 100 profiles and 100 profile templates with time stamp (each profile stores up to 450 batteries).

The Discharge mode collects the voltage of each battery multiple times at a user defined interval during a discharge or load test. Users can calculate the time a battery takes to drop to the cut-off voltage and use this time to determine the capacity loss of the battery.