---
product_id: 602833727
title: "VDIAGTOOL BT300 Car Battery Tester 6V 12V, 5-3000 CCA Load Tester Starter Alternator Tester Automotive Charging Cranking System Tester for Motorcycle Car Truck SUV ATV Boat"
brand: "vdiagtool"
price: "€ 80.17"
currency: EUR
in_stock: true
reviews_count: 10
category: "Vdiagtool"
url: https://www.desertcart.com.cy/products/602833727-vdiagtool-bt300-car-battery-tester-6v-12v-5-3000-cca
store_origin: CY
region: Cyprus
---

# 5-3000 CCA load testing range 99.99% lab-grade accuracy 6V/12V universal battery compatibility VDIAGTOOL BT300 Car Battery Tester 6V 12V, 5-3000 CCA Load Tester Starter Alternator Tester Automotive Charging Cranking System Tester for Motorcycle Car Truck SUV ATV Boat

**Brand:** vdiagtool
**Price:** € 80.17
**Availability:** ✅ In Stock

## Summary

> 🔧 Never get stranded again—master your vehicle’s power with precision and ease!

## Quick Answers

- **What is this?** VDIAGTOOL BT300 Car Battery Tester 6V 12V, 5-3000 CCA Load Tester Starter Alternator Tester Automotive Charging Cranking System Tester for Motorcycle Car Truck SUV ATV Boat by vdiagtool
- **How much does it cost?** € 80.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/602833727-vdiagtool-bt300-car-battery-tester-6v-12v-5-3000-cca)

## Best For

- vdiagtool enthusiasts

## Why This Product

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

## Key Features

- • **Smart Data Tracking:** Bluetooth-enabled app sync lets pros and enthusiasts monitor battery health trends and print detailed diagnostic reports.
- • **All-Vehicle Versatility:** One tester fits motorcycles, cars, trucks, SUVs, ATVs, and boats with wide 6V/12V & 5-3000 CCA support.
- • **Pro-Level Battery Insight:** Instantly diagnose voltage, internal resistance, SOC, SOH, and CCA for all lead-acid batteries.
- • **Comprehensive System Check:** Beyond batteries—test your starter motor’s cranking and alternator’s charging performance to avoid breakdowns.
- • **Lightning-Fast & Ultra-Accurate:** Get lab-grade results in seconds with a crystal-clear 2.8" HD TFT display and intuitive LED health indicators.

## Overview

The VDIAGTOOL BT300 is a compact, professional-grade car battery tester compatible with 6V and 12V lead-acid batteries ranging from 5 to 3000 CCA. It delivers ultra-precise diagnostics including voltage, internal resistance, state of charge (SOC), state of health (SOH), and cold cranking amps (CCA). Beyond battery testing, it performs starter motor cranking and alternator charging tests to ensure your vehicle’s entire power system is reliable. Featuring a bright 2.8" HD display, intuitive LED indicators, and Bluetooth connectivity for data tracking and report printing, the BT300 is designed for both professional mechanics and savvy vehicle owners who demand fast, accurate, and comprehensive battery health insights.

## Description

Buy VDIAGTOOL BT300 Car Battery Tester 6V 12V, 5-3000 CCA Load Tester Starter Alternator Tester Automotive Charging Cranking System Tester for Motorcycle Car Truck SUV ATV Boat: Battery Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great battery and charging system tester - Great diagnosing tool. Good for 12v and 6v. Will test your battery, alternator, and starter. Good for all skill levels. Easy to use and understand. Really nice recall features and great read out display. Comfortably fits in any hand durable enough to use in any setting. Well built and ergonomic.
Review: Works good, nice interface, worth the buy - My thoughts on the VDIAGTOOL BT300 Car Battery Tester, I'm impressed with its performance and features. This tester is a must-have for anyone who wants to ensure the health and reliability of their vehicle's battery and charging system. without the hassle of taking to a shop. The VDIAGTOOL BT300 supports both 6V and 12V batteries and covers a wide range of CCA (Cold Cranking Amps) from 5 to 3000, making it suitable for use with motorcycles, cars, trucks, SUVs, ATVs, and even boats. This level of versatility means that the device can be used across a wide range of vehicles, making it a valuable tool for professional mechanics and car enthusiasts alike. And it's small enough to be portable. One of the standout features of the VDIAGTOOL BT300 is its ease of use. The clear and intuitive interface and the large backlit display make it simple to navigate through the various testing functions. The device quickly provides accurate and easy-to-understand results, allowing users to make informed decisions about the condition of their vehicle's battery and charging system. Additionally, the VDIAGTOOL BT300 functions as more than just a battery tester. It also serves as a load tester and alternator tester, providing comprehensive insights into the overall health of the vehicle's charging and cranking system. This multifunctionality makes it easy to not only check your battery but how well the Alternator is charging it. In terms of build quality, the VDIAGTOOL BT300 feels solid and well-made, should easily last for a long time. Furthermore, the device's Bluetooth and companion app provide convenience and additional functionality. Users can easily record and track test results, allowing long-term monitoring of the vehicle's battery performance. This feature is handy for professionals who must keep detailed records for multiple cars. or while working in a shop setting where you need to have records. So far, I've used this tester on multiple vehicles and loose batteries around the shop and have no complaints works as it should.

## Features

- 【KNOW YOUR BATTERY BEFORE IT DIES】Why risk being stranded? Test your car battery like a Pro today! BT300 car battery tester is your ultimate 6V/12V battery diagnostic solution for car, motorcycle. This professional-grade automotive battery tester delivers instant, comprehensive analysis - checking voltage, load, internal resistance, ripple, SOC, SOH, CCA and charging/cranking performance - all before battery failure strikes. All you need is just a powerful car battery load tester 12v automotive!
- 【WIDE COMPATIBILITY】Universal 6V/12V Battery Testing Made Simple! The BT300 battery tester automotive works with virtually any lead-acid battery (VRLA or SLA), AGM, GEL, LSI from 5-3000 CCA - perfect for car, motorcycle, truck, SUV, boat and more. Enjoy precision adjustments with flexible CCA settings (±5 or ±50) for ultra-accurate results. One 12 volt car battery tester for all your vehicles - accurate, fast & reliable! (Note: Not compatible with Lithium Battery or Golf Cart Deep Cycle Battery)
- 【RELIABLE BATTERY TESTERS】Get instant, precise battery test with 12v auto battery tester! This digital battery analyzer delivers a real-time voltage waveform for detailed monitoring, while instantly measuring voltage, internal resistance, CCA, SOH, and SOC—all in one test. Whether your battery is in-vehicle or out, the 6 volt car battery tester provides smart, actionable advice (recharge or replace) to prevent unexpected failure. No more guesswork—just fast, accurate result and peace of mind.
- 【CRANKING & CHARGING TEST】Beyond battery testing, this car battery tester and alternator starter tester performs cranking test to check whether the starter motor is cranking properly or not and charging test of the alternator to prevent overcharge or incomplete charge. No more surprise breakdowns - just reliable power when you need it most. For accurate results, please simply turn off all electrical devices and ensure correct battery type, standard, CCA value during testing.
- 【FAST TEST & 99.99% ACCURACY】Get lightning-fast, lab-grade accuracy with this battery analyzer tester – delivering reliable result with 99.99% precision in seconds! The plug & play battery checker tester features a 2.8" HD TFT display for crystal-clear reading, one-touch testing/review/waveform analysis, and intuitive LED health indicators (Green=Good, Yellow=Normal, Red=Poor). Connect the small car battery tester with the computer for printing – perfect for quick diagnostic or detailed report.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CR6DT7RS |
| Best Sellers Rank | #32,757 in Automotive ( See Top 100 in Automotive ) #50 in Battery Testers |
| Brand | VDIAGTOOL |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (339) |
| Date First Available | January 17, 2024 |
| Item Weight | 15.1 ounces |
| Item dimensions L x W x H | 6.45 x 3.35 x 0.96 inches |
| Item model number | BT300 |
| Manufacturer | VDIAGTOOL |
| Manufacturer Part Number | VDT-BT300 |
| Measurement Type | Multimeter |
| Min. Operating Voltage | 12 Volts |
| Power Source | Plug and Play, Powered By Car Batteries, No Need for Charging |
| Product Dimensions | 6.45 x 3.35 x 0.96 inches |
| Style | Compact |

## Product Details

- **Brand:** VDIAGTOOL
- **Color:** Black
- **Item Weight:** 0.43 Kilograms
- **Power Source:** Plug and Play, Powered By Car Batteries, No Need for Charging
- **Style:** Compact

## Images

![VDIAGTOOL BT300 Car Battery Tester 6V 12V, 5-3000 CCA Load Tester Starter Alternator Tester Automotive Charging Cranking System Tester for Motorcycle Car Truck SUV ATV Boat - Image 1](https://m.media-amazon.com/images/I/61KB1j0TmaL.jpg)

## Questions & Answers

**Q: Is it safe to use the BT300 car battery tester and alternator tester?**
A: VDIAGTOOL BT300 6 volt battery tester safeguards your battery and most importantly vehicle electronic systems with 4 protection modes: Reverse Polarity Protection, Over Temperature Protection, Short Circuit Protection and Over Current Protection.

**Q: Is the battery and alternator tester accurate?**
A: The BT300 car battery load tester 12v is quite accurate for lead acid batteries with accuracy up to 99.99%. You can also visually see the changes in voltage through the real-time waveform to make a more accurate judgment on the status of the battery.

**Q: Why In-Vehicle and Out-Of-Vehicle Tests are useful?**
A: Test batteries in vehicle and out of vehicle can meet different needs. In-vehicle testing helps evaluate how it performs within the vehicle's electrical system, and out-of-vehicle testing more accurately assesses the battery's condition & capacity.

**Q: Does this load tester come with data review & printing functions?**
A: Just connect the small battery tester with the computer and the Data Printing function allows printing out battery testing results and/or voltage waveform records saved on the battery testers.

**Q: Can this battery alternator starter tester work for 6v 12v batteries for cars and motorcycles?**
A: This batteries tester works on all 6v 12V batteries with ratings 100-3000 CCA, including Flooded lead-acid battery (VRLA or SLA), AGM, GEL, SLA, STANDARD LSI battery for cars, light duty trucks, SUVs, vans, motorcycles, RVs, ATVs, trailers, boats.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great battery and charging system tester
*by B***H on December 26, 2025*

Great diagnosing tool. Good for 12v and 6v. Will test your battery, alternator, and starter. Good for all skill levels. Easy to use and understand. Really nice recall features and great read out display. Comfortably fits in any hand durable enough to use in any setting. Well built and ergonomic.

### ⭐⭐⭐⭐⭐ Works good, nice interface, worth the buy
*by N***N on April 6, 2024*

My thoughts on the VDIAGTOOL BT300 Car Battery Tester, I'm impressed with its performance and features. This tester is a must-have for anyone who wants to ensure the health and reliability of their vehicle's battery and charging system. without the hassle of taking to a shop. The VDIAGTOOL BT300 supports both 6V and 12V batteries and covers a wide range of CCA (Cold Cranking Amps) from 5 to 3000, making it suitable for use with motorcycles, cars, trucks, SUVs, ATVs, and even boats. This level of versatility means that the device can be used across a wide range of vehicles, making it a valuable tool for professional mechanics and car enthusiasts alike. And it's small enough to be portable. One of the standout features of the VDIAGTOOL BT300 is its ease of use. The clear and intuitive interface and the large backlit display make it simple to navigate through the various testing functions. The device quickly provides accurate and easy-to-understand results, allowing users to make informed decisions about the condition of their vehicle's battery and charging system. Additionally, the VDIAGTOOL BT300 functions as more than just a battery tester. It also serves as a load tester and alternator tester, providing comprehensive insights into the overall health of the vehicle's charging and cranking system. This multifunctionality makes it easy to not only check your battery but how well the Alternator is charging it. In terms of build quality, the VDIAGTOOL BT300 feels solid and well-made, should easily last for a long time. Furthermore, the device's Bluetooth and companion app provide convenience and additional functionality. Users can easily record and track test results, allowing long-term monitoring of the vehicle's battery performance. This feature is handy for professionals who must keep detailed records for multiple cars. or while working in a shop setting where you need to have records. So far, I've used this tester on multiple vehicles and loose batteries around the shop and have no complaints works as it should.

### ⭐⭐⭐⭐⭐ Small and convenient to use. Accurate.
*by H***A on August 17, 2025*

Received the item on schedule. Item came nicely packaged with a user manual. Was a little surprised to see it didn’t use batteries, but it makes sense since it is always connected to a battery when used. Took it right out to the car and it turned on as soon as I connected it. Did the battery test first and the battery checked out just fine, which I expected. CCA came in within a few amps of what was printed on the battery so I decided to try a test. I turned on the headlights and then repeated the battery test. With the headlights on the CCA came in about 100A lower, so it really is measuring the battery since it wasn’t able to get as much current when some of the current was diverted to the headlights. Went on to check the alternator and starter. This car has a 6 phase alternator, resulting in higher amperage and less ripple and the tester recognized the reduced ripple. The starter tested OK and it was nice to see exactly how long the starter ran before the engine actually started. I then tried the graphing voltage display which worked as expected, with a slight dip in voltage while the starter ran followed by an increase in voltage with the alternator running. It’s a good sense of security knowing I can check the health of my battery and electrical system quickly and easily and find problems before I get stranded and for such a small and low cost device.

## Frequently Bought Together

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-01-25*