TOPDON BT100W Bluetooth Battery Tester

Bluetooth 12V Battery & System Tester

The TOPDON BT100W is a Bluetooth-enabled 12V battery and system tester designed for automotive workshops, technicians and vehicle owners. Combining standalone operation with mobile app connectivity, it performs battery, charging and ripple tests while providing detailed battery health analysis. The companion app offers access to a comprehensive battery library, synchronised test data and downloadable reports. Supporting multiple battery types and international battery standards, the BT100W delivers practical battery diagnostics in a compact, easy-to-use device.

The TOPDON BT100W is a Bluetooth-enabled 12V battery and system tester designed for automotive workshops, technicians and vehicle owners

Main Features

  • Standalone and Bluetooth App Operation – Operates independently or connects to the BT100W mobile app via Bluetooth to access additional diagnostic functions, battery information and detailed test analysis.
  • Comprehensive 12V Battery Testing – Performs detailed battery assessments to evaluate battery condition, charge level and cold-cranking performance, helping identify potential battery issues.
  • State of Health (SOH) Analysis – Assesses the overall condition of the battery to help technicians understand its current performance and identify potential deterioration.
  • State of Charge (SOC) Analysis – Measures the battery's current charge level, providing useful information about its charging condition and available capacity.
  • Cold Cranking Amps (CCA) Assessment – Evaluates the battery's cold-cranking performance to help determine its ability to deliver the starting power required by the vehicle.
  • Cranking Performance Analysis – Provides cranking time and voltage information to help identify potential battery-related starting issues. Confirm the availability of this function for the BT100W before publishing.
  • 12V Charging System Testing – Checks the vehicle's 12V charging system to help identify potential charging performance issues and assess the system's operating condition.
  • Battery Ripple Testing – Performs ripple testing to assist in evaluating charging system output stability and identifying potential electrical irregularities.
  • Comprehensive Battery Library – Provides access to battery specifications, recognised battery standards and cold-cranking amp (CCA) information to support accurate battery testing.
  • Multiple Battery Type Compatibility – Supports Flooded, AGM, Gel, EFB and VRLA battery technologies, making it suitable for testing a range of automotive battery applications.
  • Detailed Battery Test Reports – Generates diagnostic reports containing important battery information, including State of Health (SOH), State of Charge (SOC) and internal resistance.
  • Bluetooth Data Synchronisation – Synchronises test information between the BT100W tester and its mobile application, helping maintain consistent diagnostic data across both platforms.
  • Mobile App Diagnostic Functions – Connects to compatible smartphones through Bluetooth to access additional testing functions, battery information and saved diagnostic reports.
  • 2-Inch Backlit Display – Features a 2-inch backlit display for clear visibility of test information and results during automotive battery inspections.
  • Multilingual Device Operation – Supports eight device languages, including English, Spanish, French, German, Italian, Portuguese, Russian and Japanese, providing flexible operation for international users.
  • Multilingual Mobile App Support – Offers nine app languages, including Chinese, English, French, German, Italian, Portuguese, Russian, Spanish and Japanese.
  • Software Update Support – Supports software updates to help maintain the device's software functionality.

Package Includes

  • 1 x TOPDON BT100W Battery Tester
  • 1 x User Manual
  • 1 x Quick User Guide

Why Buy the TOPDON BT100W Battery Tester?

TOPDON BT100 digital battery tester with LCD display.

Standalone and Bluetooth app operation
Comprehensive 12V battery testing
Battery State of Health (SOH) analysis
Battery State of Charge (SOC) analysis
Cold Cranking Amps (CCA) assessment
12V charging system testing
Battery ripple testing
Integrated battery library
Detailed battery test reports
Bluetooth data synchronisation
Flooded, AGM, Gel, EFB and VRLA battery compatibility
2-inch backlit display
Eight device languages and nine app languages
Software update support

TOPDON Battery Tester Comparison: BT100 vs BT200 vs BT300P vs BT600 vs BT600 Plus

Every TOPDON car battery tester uses conductance testing to check battery health in seconds, with no heat, sparks or battery drain. All five test Flooded, AGM, Gel, EFB and VRLA batteries from 100 to 2000 CCA, and double as a cranking (starter) and charging (alternator) tester. The differences are 24V truck support, a built-in printer, screen size and professional workshop features.

Compare features TOPDON BT100 12V car battery testerTOPDON BT10012V battery testerView BT100 TOPDON BT200 12V battery tester with 24V cranking and charging testTOPDON BT20012V tester, 24V system testView BT200 TOPDON BT300P battery tester with built-in printerTOPDON BT300PWith built-in printerView BT300P TOPDON BT600 battery and system tester with printerTOPDON BT6003.5" screen, printer & system testView BT600 Most capable
TOPDON BT600 Plus 6V 12V 24V battery and resistance testerTOPDON BT600 Plus6V/12V/24V + resistance testView BT600 Plus
Best forSimple 12V battery checks at homeHome garages, plus 24V cranking & charging testsWorkshops needing printed customer reportsWorkshops wanting a big screen, printer & system testProfessional, fleet & 24V truck battery testing
Battery type
Battery voltage tested12V12V12V12V6V / 12V / 24V
Cranking & charging system voltage12V12V / 24V12V / 24V12V / 24V12V / 24V
Battery types supportedFlooded, AGM, Gel, EFB, VRLAFlooded, AGM, Gel, EFB, VRLAFlooded, AGM, Gel, EFB, VRLAFlooded, AGM, Gel, EFB, VRLAFlooded, AGM, Gel, EFB, VRLA
+ internal resistance for lithium, alkaline & carbon-zinc
Test standards
Testing range100–2000 CCA
30–220Ah (GB)
100–2000 CCA
30–220Ah (GB)
100–2000 CCA
30–220Ah (GB)
100–2000 CCA
30–220Ah (GB)
100–2000 CCA
30–220Ah (GB)
Battery rating standardsCCA, CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, GBCCA, CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, GBCCA, CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, GBCCA, CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, GBCCA, CA, BCI, MCA, DIN, IEC, EN, SAE, JIS, GB
Test functions
Battery test12V12V12V12V6V / 12V / 24V
Cranking (starter) test12V12V / 24V12V / 24V12V / 24V12V / 24V
Charging (alternator) test12V12V / 24V12V / 24V12V / 24V12V / 24V
Full system test–––12V12V / 24V
Ripple (alternator diode) test✓✓✓✓✓
Internal resistance test––––✓
Sequence (batch) test––––✓
Up to 500 batteries per group
Data & software
Stored test resultsLast 1Last 1Last 1Last 1Last 10
Software updates–––✓✓
Smartphone app–––––
Screen & hardware
Display2" backlit LCD2.4" colour2.4" colour3.5" colour3.5" colour
Built-in thermal printer––✓✓✓
Rechargeable internal battery––––5200mAh
Tests flat batteries down to 2V
Other
LanguagesEnglish, Spanish, French, German, Italian, RussianEnglish, Spanish, French, German, Italian, Portuguese, Russian, JapaneseEnglish, Spanish, French, German, Italian, Portuguese, Russian, JapaneseEnglish, Spanish, French, German, Italian, Portuguese, Russian, JapaneseEnglish, Spanish, French, German, Italian, Portuguese, Russian, Japanese

Battery voltage tested is the battery the tester can assess directly. Cranking & charging system voltage is the vehicle system it can check. Only the BT600 Plus tests 24V batteries directly; the BT200, BT300P and BT600 test 12V batteries and check the cranking and charging systems of 24V vehicles.

Comparison tables are for reference only and based on TOPDON specifications. Refer to each product page or contact us for more information.

TOPDON BT100W Battery Tester – Technical Specifications

TOPDON BT100W Battery Tester – Technical Specifications

Model: BT100W
Testing Range: 100–2000 CCA / 30–220 Ah (GB)
Testing Voltage: 12V
Battery Standards: CCA / CA / BCI / MCA / DIN / IEC / EN / SAE / JIS / GB
Ripple Test: Yes
6V Battery Test: No
12V Battery Test: Yes
24V Battery Test: No
12V Cranking Test: No
24V Cranking Test: No
12V Charging Test: Yes
24V Charging Test: No
System Test: Yes, 12V
Resistance Test: No
Sequence Test: No
Mobile App Connectivity: Yes, via Bluetooth
Display: 2-inch Backlit Display
Built-in Printer: No
Supported Battery Types: Flooded / AGM / Gel / EFB / VRLA
Battery Library: Yes
Data Retrieval: Limited
Built-in Battery: No
BMS Reset: No
Software Updates: Yes
Device Languages: English / Spanish / French / German / Italian / Portuguese / Russian / Japanese
App Languages: Chinese / English / French / Spanish / German / Italian / Portuguese / Russian / Japanese

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