Fluke 500 Series Battery Analyzer

Fluke 500 Series Battery Analyzer is rated 3.4 out of 5 by 8.
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  • Fluke 500 Series Battery Analyzers
  • Fluke 500 Series Battery Analyzers
  • Fluke 500 Series Battery Analyzers
  • Fluke 500 Series Battery Analyzers
  • BTL520ANG Angled Test Probes

Key features

The ideal test tool for maintenance, troubleshooting and performance testing of individual stationary batteries and battery banks used in critical battery back-up applications

  • Key measurements – Internal battery resistance, dc and ac voltage, dc and ac current, ripple voltage, frequency and 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), eliminating the need to press a button each time a measurement needs to be saved.
  • Comprehensive logging – All measured values are automatically captured during testing and can be reviewed on the instrument before downloading for on the-go analysis.

Product overview: Fluke 500 Series Battery Analyzer

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

  • The 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
  • Covers a broad range of battery test functions ranging from DC voltage and resistance tests to full condition testing using automated string function testing and the test probe integrated infra-red temperature measurement system
  • Designed for measurements on stationary batteries of all types.

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:

VoltageResistance
> Voltage Lower< Voltage Lower< Reference> Reference and Reference x (1+Warning %)> Reference x (1+Fail)
PassFailPassWarningFail

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, switch results between conductance and resistance readings 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
  • Switch measurement results between conductance and resistance readings

Fluke Battery Analyzer 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 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
  • Intercell Strap Resistance Test and Data Management – Measures the resistance of the intercell connection between batteries in a string.
  • 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 Intelligent Test Probe set, with long and short probe extenders and built-in LCD display and speaker for visual and audio feedback
  • BTL20ANG Intelligent Test Probe Set, with long and short angled tip probe extenders (no temperature sensor)
  • Large soft carry case

Fluke BT521 Key features:

(Designed for users who need to incorporate temperature measuring)
  • All of the above* 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
  • BTL20ANG Intelligent Test Probe Set, with long and short angled tip probe extenders (no temperature sensor)
  • Wireless capability works with Fluke Battery Analyze mobile app (Fluke BA Mobile)*
    • View profile and associated test results from the Battery Analyzer
    • Send out the profile and test results via Email with (.csv) data format

* BTL20 not included with the Fluke BT-521
* Not currently compatible with Fluke Connect® app

    Useful resources and rugged tools for Solar professionals

    What's in the box:

    • Fluke BT521 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

    Specifications: Fluke 500 Series Battery Analyzer

     RangeResolutionAccuracyBT510BT520BT520ANGBT521BT521ANG
    Battery Resistance / Strap Resistance13 mΩ0.001 mΩ1% + 8  
    1% +68   
    30 mΩ0.01 mΩ0.8% + 6  
    0.8%+12   
    300 mΩ0.1 mΩ0.8% + 6
    3000 mΩ1 mΩ0.8% + 6
    VDC6 V0.001 V0.09% + 5
    60 V0.01 V0.09% + 5
    600 V0.1 V0.09% + 5
    1000 V1 V0.09% + 5   
    VAC (45 Hz to 500 Hz with 800 Hz filter)600 V0.1 V2% + 10
    Frequency (displayed with VAC and AAC)2500 Hz0.1 Hz0.5% + 8
    AC voltage ripple (20 KHz  Max)600 mV0.1 mV3% + 20
    6000 mV1 mV3% + 10
    ADC/AAC (with accessory Fluke i410)400 A1 A3.5% + 2   
    Temperature0°C to 60°C1°C2°C (4°F)   
    Meter mode999 records for each measurement position with time stamp
    Sequence modeUp 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
    Measurement ModesBT510BT520BT521
    Resistance (mΩ)
    Battery voltage
    Voltage DC
    Voltage AC and frequency  (Hz)
    Ripple volt
    Temperature of negative battery post (using BTL21 straight probes)  
    DC and AC current (and frequency)  
    DMM mode
    Sequence mode
    Discharge measurement mode
    Automatic measurement  save
    Wireless communication  
    Memory view
    General Specifications - Battery Analyzer
    Size (H x W x D)22 x 10.3 x 5.8 cm (9 x 4 x 2 in)
    Weight850 g (1.9 lb)
    Screen dimensions7.7 x 5.6 cm (3 x 2.2 in)
    InterfaceUSB mini
    Warranty3 years
    General Specifications - BTL20ANG Angled Measurement Probe
    Long angled probe (overall length)242.2 cm (95.38 in)
    Short angled probe (overall length)216.8 cm (85.38 in)
    Overall span (coil relaxed)10.1 cm (4 in)
    Overall maximum span (coil extended)109.2 cm (43 in)
    BTL20ANG probe tip angle20 degrees from horizontal
    Environment Specifications
    Operating temperature0°C to 40°C
    Storage temperature-20°C to 50°C
    Lithium-ion  battery charging temperature0°C to 40°C
    Operating humidityNon-condensing (10°C)
    ≤ 80% RH (at 10°C to 30°C)
    ≤ 75% RH (at 30°C to 40°C)
    Operating altitudeSea level to 2000 meters
    Storage altitudeSea level to 12,000 meters
    IP ratingIP40
    RadioFCC Class A
    Vibration  requirementsMIL-PRF-28800F: Class 2
    Drop test  requirements1 meter
    Temperature coefficientsAdd 0.1 x specified accuracy for each degree C above 28°C or below 18°C
    Safety  compliance600 V CAT III
    EMCIEC 61326
    ROHSChina, Europe
    Protection class 2Pollution Degree II
    Battery complianceUN38.3
    UL2054
    IEC62133
    2 G per IEC68-2-26, 25 G, and 29

    Models: Fluke 500 Series Battery Analyzer

    Fluke BT521
    Fluke BT521 Advanced Battery Analyzer with intelligent test probe set (with temperature measurement)

    Buy it

    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
    Fluke BT520
    Fluke BT520 Battery Analyzer with intelligent test probe set (no temperature measurement)

    Buy it

    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 BT510
    Fluke BT510 Basic Battery Analyzer with basic test lead set

    Buy it

    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 BT521ANG
    Fluke BT521ANG Advanced Battery Analyzer

    Buy it

    Includes:

    • Battery analyzer
    • 4-wire test pin (set)
    • BTL10 Basic Test Lead (set)
    • TL175 TwistGuard™ Test Leads with adapter
    • BTL20ANG Intelligent Test Probe Set, with extender and angled tips (no temperature sensor)
    • 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
    Fluke BT520ANG
    Fluke BT520ANG Battery Analyzer

    Buy it

    Includes:

    • Battery analyzer
    • 4-wire test pin (set)
    • BTL10 Basic Test Lead (set)
    • TL175 TwistGuard™ Test Leads with adapter
    • BTL20ANG Intelligent Test Probe Set, with extender and angled tips (no temperature sensor)
    • 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

    When I create a profile for 40 batteries in the Fluke BT521, it shows 40 batteries in ohm and discharge modes. However, when I switch to other modes like VDC and ripple, only 20 batteries are displayed. Why doesn't the battery count match the profile ?

    Asked by: Adil
    Please contact Fluke's tech support team at tech.support@fluke.com or 800-443-5853.
    Answered by: FlukeCorporation
    Date published: 2024-09-20

    IS THIS TESTER ABLE TO TEST AGM BATTERIES FOR MARINE BOATS?

    Asked by: FLORIN
    If the AGM Battery is any of the following yes, the Fluke 500 Series Battery Analyzer can be used: Any Lead Acid, VRLA or valve regulated Lead Acid, Flooded Lead Acid, Nickel Metal Hydride, Glass Mat AGM batteries, and Gel Cell Batteries. Not Lithium since they employ battery management systems.
    Answered by: FlukeCorp
    Date published: 2024-07-13

    Is model battery tester, or any other capable of testing 1.2VDC (NiCAD) batteries?

    Asked by: CSanta01
    Yes, the Fluke Battery Analyzer is capable of testing NiCAD batteries.
    Answered by: Fluke Staff
    Date published: 2024-05-24

    Could this device be used to measure ACIR of a battery package which is close to DC 500V?

    Asked by: Ranse
    The Fluke 500 Series Battery Analyzer supports up to 60V for impedance measurements.
    Answered by: Fluke Staff
    Date published: 2024-05-24

    Use case for BT510. Can string resistance test be made or only individual cells. What is the maximum string or cell voltage at which resistance can be evaluated?

    Asked by: simpletonBob

    There are any standards that give information about the acceptance critera of the deviation on calibration? The limit, for example.

    Asked by: André Merkle

    Can this perform a resistance test on a lithium ion battery to give a pass/fail rating (that we would set) IE below 4.5W

    Asked by: Anonymous

    We have set of Sealed, Flood batteries, AGM and NiCd at various facilities and need to verify its health and true life on periodic basis. Can you recommend the analyzer product that serves our purpose. Your product reviews are negative about your probes.

    Asked by: Anonymous
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    Rated 2 out of 5 by from It works - software and firmware are lacking Device works - I mentioned a few issues with the products firmware and software and Fluke said they weren't improving the product/software any further. A typical multimeter will perform the same functions as this "Analyzer" Hello Joshua, I understand your perspective and the problem is we need to improve the software. At this time, we are choosing to invest in other projects. The product manager for the battery tester products is aware of the software short cummings. It's on the list but not sure the time for the improvements. xxx x. Technical Support Engineer 1-800-873-5853
    Date published: 2024-03-19
    Rated 1 out of 5 by from Meter Test Leads Test leads are so poor and unreliable, every set of leads give different readings and constantly giving OL. Every battery has to be triple checked and as a large company doing a lot of testing we have to keep buying new leads and Fluke have just stopped replying to our emails.
    Date published: 2023-09-06
    Rated 3 out of 5 by from BT521 in the Real World The BT521 is a high end battery tester. The Probes are interesting: the short pair of the advanced probes came broken, Fluke is warrantying them out. (But still....). The probes require calibration EACH TIME you switch a set. And calibration is challenging, to say the least. You need two people. And it takes time. And repeated attempts. The software: you CANNOT create templates without being connected to the instrument. ?!?! And I'm not sure what the Fluke Connect App really lets you do. It didn't seem to do anything. All in all: well made, intuitive to use, easy to use (except the calibration proceedure), and the data logging is a great way to capture readings. But it has a 'personality,' as mentioned above, that you need to get used to. But, I have to say, the same is true of my 190-504, my 435-ii, and my 1625-2. It seems as though as the instrument capability goes up, so does its price and quirks. That being said, I'd still rather own Fluke that anything else. If for no other reasons than Fluke's reliability, customer service, and the confidence it inspires in my clients, I'll keep them as my primary test tool.
    Date published: 2019-10-21
    Rated 2 out of 5 by from Needs work. I went with the Fluke bt521 for the reason of price and safety over other battery testers. I use this tester every 3 months when I test our 1200 batteries of our site.My biggest frustration with this tester is the probes, they are tethered together at the end of the probe. This gets to be very cumbersome when trying to reach into the back corner of a battery rack. Also only having straight probes does not work well in a lot of situations, they need to have angled probes for hard to get to areas. The temperature meter on the end of the negative probe is cool, but it gets in the way a lot, again when reaching into hard to get to areas.
    Date published: 2019-04-23
    Rated 5 out of 5 by from Problem with the software I cant download the sequence profile. Can you help me?
    Date published: 2017-05-10
    Rated 5 out of 5 by from works great I bought this battery analyers for work, and this product has saved me alot of lost time troubleshooting
    Date published: 2016-12-08
    Rated 5 out of 5 by from The latest firmware is awesome !!! The latest firmware is awesome !!!, including strap test, according to IEEE 1188 standard.
    Date published: 2015-11-13
    Rated 4 out of 5 by from BT521 don't have temp display on the unit itself The BT521 could measure the negative pole temperature but could not be displayed on the unit itself. The only way to review the temp data is to download the data to the PC. This temp data should be able to review on the unit itself during the site testing. All current test probes are straight only. If Fluke could provide the angled tip, it would be best for tight environment since the workable space on top of the battery bank are quite limited in most of the environment. All accessories are not upgradable, i.e. BT510 could not be upgraded to BT520, and BT520 could not be upgraded to BT521. However the time of purchasing this sort of instrument may not have adequate budget to purchase the top of the series model. If it is upgradable, it will be fine for the starter since most of the accessories could be an optional item. I'm not sure whether this BT5xx will be compatible with the Fluke Connect in the future. The BT521 is already equipped with Bluetooth connectivity to iOS devices. I hope it will be supported by Fluke Connect in coming soon such that my Fluke Connect ready equipment could be managed together under a single platform.
    Date published: 2015-02-10
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