---
product_id: 659601290
title: "Battery Load Tester 12v Automotive, 20-2000 CCA Car Battery Tester and Alternator Tester for 24V Vehicles, BT300"
brand: "topdiag"
price: "₩83569"
currency: KRW
in_stock: true
reviews_count: 8
category: "Top Diag"
url: https://www.desertcart.kr/products/659601290-battery-load-tester-12v-automotive-20-2000-cca-car-battery
store_origin: KR
region: South Korea
---

# 12V/24V universal compatibility USB software updates 20-2000 CCA range Battery Load Tester 12v Automotive, 20-2000 CCA Car Battery Tester and Alternator Tester for 24V Vehicles, BT300

**Brand:** topdiag
**Price:** ₩83569
**Availability:** ✅ In Stock

## Summary

> 🔧 Never get stranded—know your battery’s health before it’s too late!

## Quick Answers

- **What is this?** Battery Load Tester 12v Automotive, 20-2000 CCA Car Battery Tester and Alternator Tester for 24V Vehicles, BT300 by topdiag
- **How much does it cost?** ₩83569 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/659601290-battery-load-tester-12v-automotive-20-2000-cca-car-battery)

## Best For

- topdiag enthusiasts

## Why This Product

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

## Key Features

- • **Precision Power Diagnostics:** Get accurate battery health, charge status, and cranking power in just 10 seconds.
- • **Future-Proof with USB Updates:** Stay ahead with regular software upgrades ensuring peak performance and new features.
- • **Universal Vehicle Compatibility:** Works seamlessly with all 12V and 24V batteries across cars, trucks, boats, and more.
- • **User-Friendly for Pros & DIYers:** Clear backlit display and intuitive controls make battery testing effortless for everyone.
- • **Instant Cranking & Charging Tests:** Diagnose your vehicle’s starting and charging systems with one-button ease.

## Overview

The TopDiag BT300 Battery Load Tester is a professional-grade diagnostic tool designed for 12V and 24V automotive batteries. It supports a wide range of battery types and standards, delivering fast and precise readings of battery health, charge status, and cranking power. Compatible with cars, trucks, boats, and more, it features a user-friendly interface, one-button operation, and USB-enabled software updates to keep your diagnostics cutting-edge.

## Description

Battery Load Tester 12v Automotive, Car Battery Tester and Alternator Tester for Vehicles, 20-2000 CCA Battery Checker Charging Cranking System Analyzer for 24v Truck, Boat, RV, ATV, Motorcycle, BT300: desertcart.com: Industrial & Scientific

Review: easy to use - It works perfectly for what I need. It's a very useful tool for my workshop.
Review: Tested and accurate - This product was a gift for Christmas and since they have received the product they have used the product and they love the product they said it works very well and it is accurate.

## Features

- Universal Battery Tester 12V / 24V: TopDiag BT300 battery load tester is able to detect the faults of car starting system and charging system, perform quick test and standard test, can test all automotive starter batteries, such as ordinary lead-acid batteries, AGM flat batteries. AGM spiral batteries and gel batteries. BT300 car battery checker can test most of the current battery standards, include: CCA, JIS, GB, SAE, MCA, CA, DIN, IEC, EN, BCI, etc. Notice: It's not compatible with 6V batteries and is not suitable for use with lithium batteries.
- Accurate Battery & Alternator Diagnosis: Equipped with intelligent chips, TopDiag 12v battery tester BT300 delivers reliable results for battery health (SOH), charge status (SOC), CCA, and impedance. No more guesswork—select the correct battery type/CCA value, and get precise data in 10 seconds (Note: input correct AH value for quick test, or use standard test for no manual input).
- Cranking Test & Charging Test: TopDiag BT300 automotive battery tester allows to check the conditions of starting system and charging test, so you can view the current battery start test results and battery status and make sure that your car is in good running condition at all times. Support software updates via USB (download from PC)—always get the latest features for better compatibility.
- Wide Compatibility for All 12V/24V Vehicles: TopDiag BT300 auto battery tester can be widely use for all 12V/24V vehicle battery system diagnostics, including but not limited to cars, trucks, buses, diesel vehicles, motorcycles, boats, RVs, beach carts and more.
- Multiple Languages & Software Update Mode: TopDiag BT300 battery testers support up to 7 languages: English, Spanish, German, French, Italian, Portuguese, Polish, etc. Topdiag BT300 battery analyzer also supports software update, ensure you always access to the latest features.
- User-Friendly for Everyone - BT300 automotive multimeter for car is designed for both professional mechanics and DIYers. The clear backlit LCD screen and one-button operation make testing straight forward and hassle-free.
- How to Power: It's not rechargeable, it works when you connect it to your car battery. FYI: The USB cord is for upgrade software, instead of recharging.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D95HHKYV |
| Best Sellers Rank | #15,275 in Automotive ( See Top 100 in Automotive ) #27 in Battery Testers |
| Brand | TopDiag |
| Brand Name | TopDiag |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 549 Reviews |
| Item Weight | 0.36 Kilograms |
| Manufacturer | TopDiag |
| Measurement Type | Voltmeter or Ammeter |
| Min. Operating Voltage | 12 Volts |
| Minimum Operating Voltage | 12 Volts |
| Model | BT300 |
| Power Source | Corded Electric |
| Specification Met | [Jis, En, Din, Sae, Cca, Bci, Gb, Ca, Mca, Iec] |
| Style | BT300 |
| Style Name | BT300 |

## Product Details

- **Brand:** TopDiag
- **Color:** Black
- **Item Weight:** 0.36 Kilograms
- **Power Source:** Corded Electric
- **Style:** BT300

## Images

![Battery Load Tester 12v Automotive, 20-2000 CCA Car Battery Tester and Alternator Tester for 24V Vehicles, BT300 - Image 1](https://m.media-amazon.com/images/I/71H5e95HOWL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Why do my test results change every time I test?**
A: Changing test results can be caused by inputting incorrect battery parameters, such as the battery type, CCA value, or testing under different conditions.

**Q: Does it works for golf cart battery ?**
A: Yes, but not for 6V, AAA batteries and lithium battery.

**Q: Does this product come with a battery charger included?**
A: No, The product does not come with a wall charger, as it is powered directly by a 12V vehicle battery.

**Q: Does BT300 car battery tester can test Alternator?**
A: Yes, it can test 12V Alternator but not 24V Alternator.

## Customer Reviews

### ⭐⭐⭐⭐⭐ easy to use
*by N***S on December 1, 2025*

It works perfectly for what I need. It's a very useful tool for my workshop.

### ⭐⭐⭐⭐⭐ Tested and accurate
*by S***. on December 30, 2025*

This product was a gift for Christmas and since they have received the product they have used the product and they love the product they said it works very well and it is accurate.

### ⭐⭐⭐⭐ Good Meter
*by F***Z on November 14, 2025*

Works as it should. Able to test RV and Marine batteries which don't use CCA.

## Frequently Bought Together

- Battery Load Tester 12v Automotive, 20-2000 CCA Car Battery Tester and Alternator Tester for 24V Vehicles, BT300
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**Shop now:** [https://www.desertcart.kr/products/659601290-battery-load-tester-12v-automotive-20-2000-cca-car-battery](https://www.desertcart.kr/products/659601290-battery-load-tester-12v-automotive-20-2000-cca-car-battery)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-29*