Best Car Battery Tester Reviews in 2021

A battery tester is an electronic device intended for testing the state of an electric battery, going from a simple device (such as Launch BST360, XTUNER PT101, OTOFIX BT1 Lite) for testing the charge actually present in the cells and/or its voltage output, to a more comprehensive testing of the battery’s condition (such as OTOFIX BT1, Foxwell BT-715) , namely its capacity for accumulating charge and any possible flaws affecting the battery’s performance and security.

Why and when should you test your battery? Since you may need to use the electrical systems in your car constantly, it is crucial that you check the condition of your car battery from time to time to prevent your car from being stranded in the parking lot when you need it. There are some obvious symptoms for a failing battery. Whenever you notice the starter motor cranking the engine unusually slow, maybe that’s a sign to check the condition of your car batteries before it’s too late. Sometimes you can tell by the illuminated battery/charging warning lamp on the dashboard. Dimmed headlights is another indicator of battery problems.

To avoid being stranded due to a battery problem, it’s recommended to have the battery inspected frequently and make sure the cables are clean and tight. If you’ve already used a battery for around three years, you may need to test it annually. The test will help identify if the battery has reached a point where a replacement is needed to prevent an unwanted failure.

Top 1. OTOFIX BT1 Professional Battery Tester.


The OTOFIX BT1 is a touch screen Battery & Electrical System analyzer that applies an advanced battery analysis algorithm — Adaptive Conductance.

Adaptive Conductance produces a more accurate examination of the battery’s cold-cranking ability and reserve capacity, vital to determining a battery’s true health. The diagnostic report can be customized with your personal or entity information.

1. Dynamic Service Experience Faster and Easier Operation

The BT1 offers a rich user experience with a large touch screen and on-screen support resources

-Improve service effectiveness with its 5.5-inch color LCD screen.

-Offers simple navigation

  1. Accurate Diagnostics:

Adaptive Conductance test technology provides more accurate test results

-Reduce misdiagnosis

-Diagnose low-capacity batteries

-Reduce the need to charge and retest

  1. BMS Reset:Get access to automatic battery registration and more

  1. Smart System Detection

Automatically identifies battery parameters and displays vehicle-specific battery locations by VIN

  1. All System Diagnostics

Expand your tester to a comprehensive tool with all-system diagnostics.

Expansive vehicle coverage: Covers 98% of the US, European, and Asian vehicle makes in the market

Complete Capabilities: Read and clear codes for all available systems

Supported Battery Types:

Battery Ratings:


Battery Types:

Test Flooded, AGM, AGM_Spiral, EFB and GEL Batteries

Test 6- and 12-volt Batteries: 100 – 3000 CCA

Test 12- and 24-volt Cranking/Charging Systems

Top 2. OTOFIX BT1 Lite Tester

OTOFIX BT1 Lite is a wireless battery and electrical systems tester. When paired with the Battery Tester App on your smartphone or OTOFIX tablet, it enables you to assess the health and condition of your battery quickly and easily without breaking your bank.

Adaptive Conductance Testing Adaptive Conductance Testing
Starter & Generator Test Starter & Generator Test
Battery Registration X
Electric System Reset X
Read/Erase Codes X
AutoVIN, VIN/Plate Scan X
Thermal Printer X
Optional DVOM / Amp Clamp Set X
Repair Report Repair Report

Top 3. Launch BST360 Bluetooth Battery Tester 

BST360, suitable for technicians and on the go consumers, is safe to use with its anti-heat characteristics and prevention against backfire electrical sparks that can occur during electrical system diagnosis.

Launch BST-360 enables the user to identify charging system issues accurately and timely. Adding to its compact and practical usability is Bluetooth wireless technology that is able to sync with smart phones and Launch Diagnostic Scan Tools. Ability to monitor the battery health status to identify batteries that are not optimally performing within specs. Comprehensive and conclusive starting and charging system analysis to determine related faults/issues.

Read article: Launch BST360 Bluetooth Battery Tester Use on Phone and any X431 Scanner


√Ripple Detection

√Battery Test

√Electric Current Test

√Starter Test

√Charging System Test

√Voltage Test

Supported battery types:

6V, 12V (Lead-acid battery, GEL battery and AGM battery)

Supported battery standards:


Compatible Launch diagnostic scanners:

X-431 PRO GT, X-431 PRO V4.0, X-431 PRO3 V4.0, X-431 PRO5, X-431 PAD III V2.0, X-431 PAD V


  1. Real-time monitor the battery health status include.
  2. Staring and charging system analysis to determine related faults/issues.
  3. Allow the user to download test reports on their smartphones and diagnostic scan tools by Bluetooth wireless technology
  4. Portable and lightweight with compact and practical usability


No All System Diagnostics

No battery registration

Top 4. Foxwell BT-715 Battery Analyzer

The latest BT-715 Battery Analyzer is dedicatedly developed to test 12V regular flooded, AGM/EFB flat plate, AGM/EFB spiral and gel batteries, Start-Stop AGM/EFB battery and 12V & 24V starting and charging system. It provides a quick, easy and affordable solution for technicians to check battery health and detect faults of starting and charging system.

Note: The BT715 Battery Tester can test 12V batteries only, but 24V starting and charging system is supported. It cannot test 24V batteries!

Foxwell BT715 Pros:

  1. Supports multiple battery types: 12V regular flooded, AGM/EFB flat plate, AGM/EFB spiral and gel batteries, Start-Stop AGM/EFB battery and 12V & 24V starting and charging system.
  2. Provides precise data and allows you to analyze the battery health status.
  3. Multi-Language: English, Spanish, French, German, Dutch
  4. Charging System Test
  5. Tests the batteries on the car directly – no need to remove the battery

Top 5. Foxwell BT-780 Battery Analyzer with Built-in Thermal Printer


The Foxwell BT780 is an advanced car battery analyser, which gives a comprehensive assessment of the health and charge level of your 12 Volt car battery and 12 / 24 Volt charging system.

Unlike most other battery analysers in this price range, the BT780 has been specifically developed to support start-stop AGM and EFB batteries, which are being fitted to an increasing number of vehicles.

Foxwell BT780 is better than Foxwell BT715 in 3 aspects:

  1. To test start-stop AGM and EFB batteries
  2. Internal resistance, SOC and SOH and test result display makes technicians easier and faster to judge the battery status.
  3. Ripple voltage test allows the technicians to check the output voltage of alternator quickly.
  4. Built-in thermal printer makes it possible for the technicians to print test results at anytime and anywhere
  5. Multi-language Available: Chinese, Dutch, English, French, German, Hungarian, Japanese, Korean, Polish, Portuguese, Russian and Spanish

Read the comparison table: Foxwell BT715 Vs. BT705 Vs. Foxwell BT780:

Item Foxwell BT-780 Foxwell BT715 Foxwell BT705
Net Weight 0.8KG 1.6KG 1.2KG
Dimension  90*240*45 MM 190*90*36mm (L*W*H)
Voltage Measuring 6V-32V 6V-32V 6V-32V
Battery Rating 100 to 2000CCA 100 to 2000CCA 100 to 2000CCA
Standard support CCA,BCI,CA,MCA,JIS,DIN,






Flooded, AGM, GEL
Test start-stop AGM and EFB batteries
Internal resistance
Ripple voltage test
Printer Built-in thermal printer No Bluetooth Printer Optional Bluetooth Printer
Language Chinese, Dutch, English, French, German, Hungarian, Japanese, Korean, Polish, Portuguese, Russian and Spanish English, Spanish, French, German, Dutch (can reset any language as you need) English, French, German, Russian, Spanish
Price $350 + shipping cost 119USD incl. shipping cost $159+shipping cost with Bluetooth Printer; $125 free shipping without Bluetooth Printer

Alright, the above mentioned car battery testers are from well-known brands. Launch BST360 is newly released, OTOFIX BT1 and OTOFIX BT1 Lite are from Autel. Foxwell BT715 is well-received since it was released.