---
product_id: 582573040
title: "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"
brand: "topdon"
price: "61062 Ft"
currency: HUF
in_stock: true
reviews_count: 5
url: https://www.desertcart.hu/products/582573040-12v-car-battery-tester-topdon-bt20-battery-load-tester-100
store_origin: HU
region: Hungary
---

# Real-time voltage waveform & data playback Bluetooth app-enabled cranking & charging tests 100-2000 CCA load test range 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

**Brand:** topdon
**Price:** 61062 Ft
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your ride’s health with smart, speedy testing!

## Quick Answers

- **What is this?** 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 by topdon
- **How much does it cost?** 61062 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/582573040-12v-car-battery-tester-topdon-bt20-battery-load-tester-100)

## Best For

- topdon enthusiasts

## Why This Product

- Trusted topdon brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision in a Snap:** Get battery health results in under 1 second with 99.5% accuracy—no more guessing, just confidence.
- • **Safety First Design:** Built-in reverse polarity and no-spark protection keep you and your vehicle safe during every test.
- • **Smart App Integration:** Unlock advanced cranking and charging diagnostics via the intuitive Batterylab app (Android only).
- • **Global & User-Friendly:** Supports 8 languages and features long clamp leads for easy testing inside or outside your vehicle.
- • **Universal 12V Compatibility:** Works seamlessly with 12V lead-acid batteries across cars, trucks, boats, and motorcycles worldwide.

## Overview

The TOPDON BT20 is a compact, budget-friendly 12V car battery tester offering four testing modes including load, voltage, cranking, and charging tests via Bluetooth app integration. It delivers ultra-fast, 99.5% accurate results with real-time voltage waveform monitoring and data playback, compatible with a wide range of vehicles and designed with safety features for professional and personal use.

## Description

BT20 BATTERY LOAD TESTER The BT20 is TOPDON's entry-level wireless 12V battery tester. Offering load, voltage, charging, and cranking tests, the BT20 offers high-precision voltage detection and real-time voltage monitoring. This easy-to-use device lets users of all skill-levels view voltage waveform graphs and test reports through an app. Test reports can be generated automatically, and easily share and save test reports. Data Playback function query battery voltage history data, help users analyze the problem by playing back charge and discharge data reports. Its load test method provides accurate results, making the BT20 a battery tester with superb cost-effectiveness.

## Features

- First Things First: Cranking and Charging Tests are available only on APP. Both IOS users and Android Users need to download "Batterylab" App to get access to these two features. This tester CANNOT test lithium battery, nor 6V/24V batteries.
- Budget-Friendly: Below $20, the TOPDON battery tester BT20 is a great value for a car battery tester. With four testing modes (battery load, voltage test, two app-exclusive modes: cranking, and charging), this tester works on 12V lead-acid batteries. Note that the latter two test modes require an app.
- Expanded Testing Abilities with APP: The TOPDON BT20 battery load tester pairs with your device via Bluetooth to access additional cranking and charging tests. The app displays real-time voltage waveform graphs with data playback functionality. Note that Bluetooth is to be connected via the app, not phone settings.additional cranking, charging, and voltage testing capabilities. Easily view real-time voltage waveform graphs with data playback functionality. NOTE: Bluetooth is to be connected via APP, not phone setting.
- Fast & Accurate Results: Get battery life displayed in Low/Medium/High within 1 second by clicking the TEST button. The testing accuracy can reach 99.5%, thanks to the latest conductivity technology. The TOPDON BT20 battery tester is ideal for users who want quick and reliable results. Note that Bluetooth is to be connected via the app, not phone settings.
- Universal Compatibility & Multi-Language Support: Ready to use with 12V lead-acid batteries found in a variety of vehicles, including boats, motorcycles, ships, and trucks. With 8 different language options, it's easy to use this device anywhere in the world.
- Ideal for Car Owners: The TOPDON BT20 12v battery analyzer has safety features such as reverse polarity and "no spark" protection and long clamp leads for testing from inside or outside the vehicle. It's a perfect battery analyzer and load tester for small repair shops and car owners alike. Makes a great gift for car enthusiasts.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | TOPDON |
| Power Source | Battery Powered |
| Style | Compact |
| Colour | Black |
| Min. Operating Voltage | 12 Volts |
| Specification Met | Iec,sae |
| Measurement Type | Battery Tester |
| Maximum Operating Voltage | 12 Volts |
| UPC | 850028162750 |
| Manufacturer | TT TOPDON |
| Global Trade Identification Number | 00850028162750 |
| Country of Origin | USA |
| Item model number | TOPDON BT20 Car Battery Tester |
| Package Dimensions | 18.69 x 9.3 x 8.2 cm; 331 g |
| ASIN | B0B5T7212M |

## Product Details

- **Brand:** TOPDON
- **Power Source:** Battery Powered
- **Style:** Compact
- **Colour:** Black
- **Min. Operating Voltage:** 12 Volts

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71QDtlfM-jL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/712V9cPvSFL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71D+tWyEepL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71U9K1qIE+L.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71bueLznQNL.jpg)

## Questions & Answers

**Q: How to connect to bluetooth? I tried to connect via phone setting but failed.**
A: 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.

**Q: Can i get instant results after pressing test?**
A: 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.

**Q: does it  test lithum battery and agm battery**
A: Im not a 100% sure, but as long as i know it test many types of batteries

**Q: Do you have a product that can test a 2 volt battery?**
A: 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Accurate. Easy to Use. Excellent Value
  

*by D***T on Reviewed in Canada on 26 November 2023*

This is a terrific unit. Easy to use. Saves test results. Compact and extremely well built. Although the manual refers to a BT20 app, it is not currently available with that name. The developer has provided a work around. Scan the bar code in the manual and it takes you to a YouTube video. You’ll need to download the TestFlight app and the Battery Lab app. Test Flight will provide a code to use to open Battery Lab which is essentially the BT20 so called app. It works very well. I have used for accurate readings on our boat batteries and our two autos with no issues whatsoever. Great tool that is a must for any tool box. As always great to have a good idea of your battery’s state of charge before going to the dealer for service!!

### ⭐⭐⭐⭐⭐ 







  
  
    Well worth the money!
  

*by S***N on Reviewed in the United States on 18 October 2022*

This is going to be a detailed review. The short version is, its a MUST buy!Lets start with the packaging, nice simple box with plenty of information on it. Once you open it up, you find the tester and instructions. The instructions are well written, and in a few different languages.The tester feels nice and solid, if you squeeze it the plastic does not flex or squeak. The clamps are compact but feel solid and they open really wide making it easy to get onto any battery terminal.The tester is simple and advance at the same time. When you hook up the tester to a battery, it will tell you if the battery is low on power right away as you can see in one of my pictures. The first battery was reading at 9.7v and the tester told me right away. On another picture you can see I am testing it on one of my cars that sits a lot. Battery shows 12.1v, but hitting the "TEST" button, it puts a load test and told me it was falling down to 10.6v.The tester is also advance, once you download the app to your phone, you can run a few different test. The load test will graph out the results if the battery drops down a lot. The best part, after every test you can save the results to check out anytime.The last test I tried was the cranking test, right away it told me the battery has low cranking voltage. I suspected this was the case, as it has gotten colder I have noticed the battery struggling a bit, this only confirms what I suspected.My ONLY complaint, I wish they would have put a QR code to download the app, either on the box or instructions. However the instructions does tell you to download the app from either the playstore or Apple app store.Over all this is a must buy for any dyi'er or even a professional mechanic. Also would make a great stocking stuff to any gear head!

### ⭐⭐⭐⭐⭐ 







  
  
    Works great
  

*by R***S on Reviewed in the United States on 2 June 2024*

I use it all the time in my car and my family's cars. Tells me everything I want to know and it's very easy to use. The only thing I would change is the app name. It's named very strangely so it's easy to forget the name of the app when you're ready to use it. I put a label on it with the app name so I know which app it is.

## Frequently Bought Together

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-19*