How to connect to bluetooth? I tried to connect via phone setting but failed.

Hello, attached is a video to show you the detailed steps. If you still can't connect it to your phone, please let us know the OS and model of your phone so that we might check your issue further. Any further questions, feel free to contact us.

Can i get instant results after pressing test?

Hello, please wait a few seconds after pressing the Test button, and the corresponding Battery Voltage Indicator (FULL / MEDIUM / LOW) and Battery Health Indicator (GOOD / MEDIUM / BAD) will light up to show the test result. Please note that once the Bluetooth is connected, the Test Button on the battery tester will no longer work. In this case, you can only test batteries via the APP. Any further questions, feel free to contact us.

does it test lithum battery and agm battery

Im not a 100% sure, but as long as i know it test many types of batteries

Do you have a product that can test a 2 volt battery?

No, TOPDON doesn't have a battery tester that will test a 2V battery. If you have any other questions in the future, feel free to contact us at support@topdon.com.

12V Car Battery Tester, TOPDON BT20 Battery Load Tester 100-2000CCA, Cranking&Charging Test via App(NOT for iOS), Record Voltage History, Automotive Battery Analyzer&Checker for Car Truck SUV Boat

12V Car Battery Tester, TOPDON BT20 Battery Load Tester 100-2000CCA, Cranking&Charging Test via App(NOT for iOS), Record Voltage History, Automotive Battery Analyzer&Checker for Car Truck SUV Boat

Product ID: 582573040

Details

Brand
TOPDON
Power Source
Battery
Style
Compact
Colour
Black
Min. Operating Voltage
12 Volts

📊Real-time voltage waveform graphs

📱Bluetooth app-enabled cranking & charging tests

🔋100-2000 CCA load test range

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

MX$4424

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Description

🔋 Power up your diagnostics game—never get stranded again!

PRECISION IN A SNAP - Get battery health results in under 1 second with 99.5% accuracy—no more guessing.
SAFETY FIRST ALWAYS - Built-in reverse polarity and no-spark protection keep you and your vehicle safe during every test.
SMART TESTING SMARTER YOU - Unlock advanced cranking and charging diagnostics via the intuitive Batterylab app (Android only).
GLOBAL READY USER FRIENDLY - Supports 8 languages with long clamp leads for easy testing inside or outside your vehicle—perfect for pros and enthusiasts alike.
UNIVERSAL POWER COMPATIBILITY - Designed for all 12V lead-acid batteries across cars, trucks, boats, and motorcycles—your all-in-one tester.

The TOPDON BT20 is a compact, budget-friendly 12V battery load tester offering fast, highly accurate diagnostics with 4 test modes including load, voltage, cranking, and charging (app-enabled). Compatible with a wide range of vehicles, it features Bluetooth connectivity for real-time voltage waveform monitoring and data playback via the Batterylab app (Android only). Safety features like reverse polarity and no-spark protection make it ideal for car owners and small repair shops seeking reliable, professional-grade battery analysis.

Specifications

ASIN	B0B5T7212M
Brand	TOPDON
Brand Name	TOPDON
Colour	Black
Country of Origin	USA
Customer Reviews	4.4 out of 5 stars 1,456 Reviews
Global Trade Identification Number	00850028162750
Item Dimensions	14.5 x 7.1 x 3.5 Centimeters
Item Weight	0.58 Pounds
Item dimensions L x W x H	14.5 x 7.1 x 3.5 Centimeters
Manufacturer	TT TOPDON
Maximum Operating Voltage	12 Volts
Measurement Type	Battery Tester
Minimum Operating Voltage	12 Volts
Model Number	TOPDON BT20 Car Battery Tester
Power Source	Battery Powered
Power Source Type	Battery Powered
Specification Met	Iec,sae
Style	Compact
Style Name	Compact
UPC	850028162750
Unit Count	1.0 Count

Reviews

D**T

Accurate. Easy to Use. Excellent Value

26.11.2023

C**S

Yo necesitaba uno digital y este además de confiable preciso y cumple con lo indispensable

Si quieres rápido y eficiente este es el equipo ideal.. muy satisfecho...pero siento que la aplicación está demás!

2.03.2025

T**Y

I am quite impressed by this battery tester so far.

3.02.2023

S**N

Well worth the money!

18.10.2022

A**E

Not Accurate Enough and Bluetooth Connectivity Issues Good Customer Support

18.04.2023

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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3 weeks ago

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MX$4424

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Yusuf A.

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