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Fluke 500 Series Battery Analyzers

Fluke BT521 Battery Analyzer
Fluke BT521 Battery Analyzer
Fluke BT521 Battery Analyzer with Intelligent Test Probe
Fluke BTL21 Intelligent Test Probe

Reduced testing complexity, a simplified workflow and an intuitive user interface provide a new level of ease-of-use in battery testing.

The Fluke 500 Series Battery Analyzer is ideal test tool for maintenance, troubleshooting and performance testing of individual stationary batteries and battery banks used in critical battery back-up applications. The intuitive user interface, compact design and rugged construction ensure optimum performance, test results and reliability. Fluke 500 Series Battery Analyzers cover a broad range of battery test functions ranging from DC voltage and resistance tests to full condition testing using an automated string function testing and the test probe integrated infra-red temperature measurement system. 500 Series Battery Analyzers are designed for measurements on stationary batteries of all types.

Fluke BT510 key features:

  • Battery Voltage – During the internal resistance test, Fluke Battery Analyzers also measure the voltage of the battery under test
  • Discharge Volts – 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
  • Ripple Voltage Test – Measures unwanted residual ac component of the rectified voltage in dc charging and inverter circuits. Allows users to test ac components in dc charging circuits and find one of the root causes of battery deterioration
  • Meter and Sequence Modes – The Meter mode is used for a quick test or troubleshooting. In this mode you can save and read the readings in a measurement or time sequence. The Sequence mode is for maintenance tasks with multiple power systems and battery strings. Before a task starts, users can configure a profile for the task for data management and report generation
  • Threshold and Warning – Users can configure a maximum of 10 sets of thresholds and receive a Pass/ Warning/ Fail indication after each measurement
  • AutoHold – When AutoHold is turned on, a reading is captured when it remains stable for 1 second. The reading is then released when a new measurement starts
  • AutoSave – When AutoSave is turned on, measured values are saved to internal memory automatically after an AutoHold reading is captured
  • Fluke Battery Management Software – Easily import data from the Product to a PC. The measurement data and battery profile information is stored and archived with the Management Software and can be used for comparison and trend analysis. All measurement data, battery profile and analysis information can be used to easily generate reports
  • 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
  • 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.

Fluke BT520 key features: (Designed for measuring batteries in cabinets and hard to reach places)

  • All of the above plus
  • BTL20 Interactive Test Probe set, with long and short probe extenders and built-in LCD display and speaker for visual and audio feedback
  • Large soft carry case

Fluke BT521 key features: (Designed for users who need to incorporate temperature measuring)

  • All of the above1 plus
  • BTL21 Intelligent Test Probes with long and short extenders, built-in LCD display and speaker for visual and audio feedback and integrated infrared temperature sensor for taking temperature measurements on the negative battery post with every test
  • Wireless capability works with Fluke Battery Analyze mobile app (Fluke BA Mobile)2
    • View profile and associated test results from the Battery Analyzer
    • Send out the profile and test results via Email with (.csv) data format

1 BTL20 not included with the Fluke BT-521
2 Not currently compatible with Fluke Connect™ app

Voltage and Resistance Thresholds

Fluke Battery Analyzers allow you to quickly and easily define upper and lower measurement thresholds or tolerance ranges. During the testing process, measured values are automatically compared to the predefined threshold levels producing a PASS, FAIL or WARN indication after each measurement. A maximum of 10 sets of thresholds can be stored and threshold indications are determined based on the following criterion:

Voltage Resistance
> Voltage Lower < Voltage Lower < Reference > Reference and
< Reference x
(1+Warning %)
Reference x (1+Fail)
Pass Fail Pass Warning Fail

Fluke Battery Management Software

Fluke Battery Management Software Easily allows you to quickly and easily import data from the battery analyzer to a PC. The measurement data and battery profile information is stored and archived with the Management Software and can be used compare results and perform trend analysis. All measurement data, battery profile and analysis information can be used to easily generate reports.

  • Quick view saved readings
  • Profile management
  • Histogram of a battery string with end user defined threshold
  • Historical trend data of batteries
  • Multiple rounds of discharge voltage
  • Quick Report Generation
  • Upgrade Fluke Battery Analyzer firmware
Fluke Battery Management Software battery string histogram

Histogram of a battery string with user defined threshold

Fluke Battery Management Software historical trend data

Historical trend data of batteries

Fluke Battery Management Software discharge voltage

Multiple rounds of discharge voltage

Fluke Battery Analyze mobile app

The BT521 offers wireless communication for data download and remote display while measuring via the dedicated Fluke Battery Analyzer mobile app (note: the Fluke BT521 is not currently Fluke Connect compatible). Using the Fluke Battery Analyze mobile app you can:

  • Browse profile
  • Review sequence testing data
  • E-mail sequence testing data
Fluke Battery Analyzer Mobile App profile data

View measurement profile

Fluke Battery Analyzer Mobile measurement data

View and email measurement data

Functions Range Resolution Accuracy BT508 BT510 BT520 BT5213
Battery resistance1 3 mΩ 0.001 mΩ 1% + 8
30 mΩ 0.01 mΩ 0.8% + 6
300 mΩ 0.1 mΩ 0.8% + 6
3000 mΩ 1 mΩ 0.8% + 6
Vdc 6 V 0.001 v 0.09% + 5
60 V 0.01 v 0.09% + 5
600 V 0.1 v 0.09% + 5
1000 v 1V 0.09% + 5      
Vac (45 Hz to 500 Hz with 800 Hz filter) 600 v 0.1 v 2% + 10  
Frequency (displayed with Vac and Aac)2 500 Hz 0.1 Hz 0.5% + 8  
AC voltage ripple (20KHz Max) 600 mV 0.1 mV 3% + 20  
6000 mV 1 mV 3% + 10  
Adc/Aac (with accessory Fluke i410) 400 A 1 A 3.5% + 2      
Temperature 0°C to 60°C 1°C 2°C (4 °F)      
Meter mode 999 records for each measurement position with time stamp
Sequence mode Up to 100 profiles and 100 profile templates (Each profile stores up to 450 batteries) with time stamp
1 The measurement is based on ac injection method. The injected source signal is < 100 mA, 1 kHz.
2 Trigger level VAC: 10 mV, Aac: 10 A
3 Not available in all regions

Measurement Modes BT508 BT510 BT520 BT521
Resistance (mΩ)
Battery voltage
Voltage dc
Voltage ac and frequency (Hz)  
Ripple volt  
Temperature of negative battery post      
DC and ac current (and frequency)      
DMM mode  
Sequence mode  
Discharge measurement mode  
Automatic measurement save  
Wireless communication      
Memory view  

General Specifications
Size (HxWxD) 22 cm x 10.3 cm x 5.8 cm (9 in x 4 in x 2 in)
Weight 850 g (1.9 lb)
Screen dimensions 7.7 cm x 5.6 cm (3 in x 2.2 in)
Interface USB mini
Warranty 3 years

Environment Specifications
Operating temperature 0°C to 40°C
Storage temperature -20°C to 50°C
Lithium-ion battery charging temperature 0°C to 40°C
Operating humidity Non-condensing (10°C)
<=80% RH (at 10°C to 30°C)
<=75% RH (at 30°C to 40°C)
Operating altitude Sea level to 2000 meters
Storage altitude Sea level to 12,000 meters
IP rating IP40
Radio FCC Class A
Vibration requirements MIL-PRF-28800F: Class 2
Drop test requirements 1 meter
Temperature coefficients Add 0.1 x specified accuracy for each degree C above 28°C or below 18°C
Safety compliance 600 V CAT III
EMC IEC 61326
ROHS China, Europe
Protection class 2 Pollution Degree II
Battery compliance UN38.3
UL2054
IEC62133
2G per IEC68-2-26, 25G, and 29
Model NameDescription
Fluke BT508

Fluke BT508 Battery Analyzer
Includes
:

  • Battery analyzer
  • 4-wire test pin (set)
  • BTL10 Basic 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
  • Spare fuses (2)
  • Zero Ohm Calibration Resistor
Fluke BT510

Fluke BT510 Battery Analyzer
Includes
:

  • Battery analyzer
  • 4-wire test pin (set)
  • BTL10 Basic 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
  • Spare fuses (2)
  • Zero Ohm Calibration Resistor
Fluke BT520

Fluke BT520 Battery Analyzer
Includes:

  • Battery analyzer
  • 4-wire test pin (set)
  • BTL10 Basic Test Lead (set)
  • TL175 TwistGuard™ Test Leads with adapter
  • BTL20 Intelligent Test Probe Set, with extender (no temperature sensor)
  • 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
  • Zero Ohm Calibration Resistor
Fluke BT521

Fluke BT521 Advanced Battery Analyzer
Includes:

  • Battery analyzer
  • 4-wire test pin (set)
  • BTL10 Basic Test Lead (set)
  • TL175 TwistGuard™ Test Leads with adapter
  • 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
  • Zero Ohm Calibration Resistor

Test Probes
Fluke BTL20Interactive Battery Analyzer Test Probe
Fluke BTL21Interactive Battery Analyzer Test Probe with Temperature Sensor

Batteries, Chargers and Adapters
Fluke BC500AC Power Charger
Fluke BP500Lithium-ion Battery 3000 mAh
Fluke BTL-AVoltage/Current Probe Adapter

Cases and Holsters
Fluke C500LSoft Carrying Case (Large)
Fluke C500SSoft Carrying Case (Small)

Current Clamps
Fluke i410AC/DC Current Clamp

Test Leads
Fluke BTL10Basic Battery Analyzer Test Leads
        
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