---
product_id: 165213039
title: "BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht"
brand: "topdon"
price: "¥17995"
currency: JPY
in_stock: true
reviews_count: 13
category: "Topdon"
url: https://www.desertcart.jp/products/165213039-bt100-car-battery-tester-12v-load-tester-100-2000-cca
store_origin: JP
region: Japan
---

# 3-in-1 battery, cranking & charging test 100-2000 CCA range Spark-proof copper clamps BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht

**Brand:** topdon
**Price:** ¥17995
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your ride with confidence—never miss a beat on the road!

## Quick Answers

- **What is this?** BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht by topdon
- **How much does it cost?** ¥17995 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/165213039-bt100-car-battery-tester-12v-load-tester-100-2000-cca)

## 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

- • **Compact & Ready-to-Go:** Lightweight, pocket-sized design fits perfectly in your glove box—be the first to catch battery issues on the road.
- • **Triple-Test Technology:** Battery health, engine cranking, and alternator charging system all checked in one sleek device—never get stranded again.
- • **Precision Power Insights:** Get instant SOH, SOC, voltage & current data for your 12V battery—know your battery’s health like a pro.
- • **User-Friendly LED Indicators:** Intuitive 3-color LED alerts and menu navigation make diagnostics fast and foolproof—no more guesswork.
- • **Universal Vehicle Compatibility:** Test batteries on cars, trucks, motorcycles, boats, SUVs, and even golf carts—one tool for all your rides.

## Overview

The TOPDON BT100 is a compact, digital 12V car battery tester designed for professional-grade diagnostics. It supports a wide CCA range (100-2000), tests multiple battery types including AGM and GEL, and offers 3-in-1 functionality to assess battery health, engine cranking power, and alternator charging performance. Featuring spark-proof copper clamps and intuitive LED indicators, it’s compatible with a broad spectrum of vehicles from motorcycles to yachts, making it an essential tool for managers and DIYers who demand reliability and precision on every journey.

## Description

Buy TOPDON BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht: Battery Testers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great Indicator! - Note: This is NOT a carbon pile tester of old but a great tool to perform a quick check. And it is also much lighter, convenient and more compact than Ol Smokey. I found this works best when directly connected to the battery vs the "access nipples" under the hood on my 2024 Audi A5 when testing for load. My battery in is in the trunk under the spare tire. When tested from the access points, the battery tested low but when directly connected, showed up a more believable 55% on the OEM battery. (Note I live in Florida and the heat takes a toll, so I have "learned" to test periodically.) On my bride's Ford Escape, you have to hold your tongue right to get good connections as the battery is under the cowl and I didn't feel like removing the hold downs to pry it out to get a better hands free connection but on that car, it showed a 80% on a 2 yr old Interstate ostensibly made for the hot climate. The other test functions are viable with the most interesting to me the ac ripple test (anyone who owned a 7th gen maxima can appreciate that early warning as those OEM alternators failed regularly every 100,000 to 150,000 miles with High Ripple (don't know if that issue still exists with their diode packs of today but it ran very hot under the hood and those diodes were NOT mil-spec!! :) ) I also appreciated the "dumb guy" indicators when you didn't ensure a good connection. Really helped with those "DOH!" moments. The voltage reading was spot on when compared to my fluke and old Simpson 260b. Nice Job.
Review: Easy, Reliable 3-in-1 Battery Tester - I just installed a brand new car battery and checked it with the TOPDON BT100. It showed the battery was bad, which probably saved me from being stranded. The battery was under warranty, so I got a new replacement. The tester is very easy to use and gives clear results. I especially like that it’s a true 3 in 1 tool: it tests battery health, checks the engine crank, and measures the charging system. Now I can conveniently check my battery anytime without going to AutoZone or O’Reilly Auto Parts. This is a great value and definitely worth keeping in the car.

## Features

- [Car Battery Tester] You can easily test and inspect your 12V lead-acid battery with this TOPDON car battery tester. The SOH (State of Health), SOC (State of Charge), Voltage, Current, Rating, and numerous other understandable analytical data are provided by this battery tester. It is compatible with 100-2000CCA regular flooded, AGM flat plate/spiral, EFB, and GEL for their optimum performance.
- [Wide Application] This 12V battery load tester can only be powered on once it is properly attached thanks to a safe passive testing approach. You may test the batteries of a number of vehicles, including cars, motorbikes, trucks, RVs, ATVs, SUVs, boats, yachts, lawnmowers, and even golf carts, without needing to charge the device first.
- [3 Testing Function] A battery health test will determine whether or not the battery is in excellent operating order. A cranking test will determine whether or not the electrical system has sufficient power to start the engine. Check to see that the charging current, rectifier diode, and generator are all functioning normally. This handy auto battery analyzer makes sure your summer road trips won’t end on a flat.
- [Ergonomic Features] To help you rapidly determine the health of the battery, this load battery tester is built with three different colors of LEDs. It's easy to use because it operates through a menu system. Additionally, for a reliable and secure connection during the testing process, premium-quality copper clamps have polarity reverse prevention and spark proof features.
- [Great Choice] The TOPDON BT100 is small and compact, making it simple to keep in a glove box or center console. This battery load tester's rapid and precise results will enable you to decide whether your car battery needs to be replaced or jump-started making it an excellent choice for auto shops, garages, and DIY users who frequently check batteries.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Z67MMGC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #704 in Automotive ( See Top 100 in Automotive ) #2 in Battery Testers |
| Brand | TOPDON |
| Color | BT100 |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,279) |
| Date First Available | October 14, 2019 |
| Global Trade Identification Number | 00850028162088 |
| Included Components | 1*Car Battery Tester |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 9 ounces |
| Item dimensions L x W x H | 5.3 x 3 x 1 inches |
| Item model number | BT100 |
| Manufacturer | TT TOPDON |
| Measurement Accuracy | 10CCA |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 12 |
| Part Number | TT TOPDON |
| Power Source | Battery Powered |
| Product Dimensions | 5.3 x 3 x 1 inches |
| Size | BT100 |
| Special Features | All-in-one car battery tester with cranking and charging system test, load and alternator checking |
| Specification Met | Cca |
| Style | For cars/ trucks/ Boats |
| UPC | 850028162088 632111309187 |
| Upper Temperature Rating | 140 Degrees Fahrenheit |
| Warranty Description | TOPDON offers 30 days return & 12-month friendly customer service.Safety tips: It’s important that you always turn off your car’s ignition when testing your battery, and always read the safety features section in the manual carefully to ensure optimum safety. |

## Product Details

- **Brand:** TOPDON
- **Color:** BT100
- **Item Weight:** 9 Ounces
- **Power Source:** Battery Powered
- **Style:** For cars/ trucks/ Boats

## Images

![BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht - Image 1](https://m.media-amazon.com/images/I/61JbY+bvFZL.jpg)

## Questions & Answers

**Q: Anyone know how this differs from topdon ab100? marketing for bt100 includes boats, but not clear how they differ? ab100 has copper clamps i think.**
A: No difference, unless the test range is smaller ab100. If cca range is same, then you should be fine with using either one.

**Q: Does this automotive battery analyzer apply a load to the battery?**
A: No, you have to crank the engine to apply a load for testing. The unit is too small to apply a useful load on it's own.

**Q: Wll this load-test a disconnected battery?**
A: Hello, car battery tester 12V Load tester TOPDON BT100  can test a disconnected battery. Any further questions, please feel free to contact us: support@topdon.com.

**Q: Is there a bag/case for this? Thought I saw one some where?**
A: A case/bag did not come with the tester.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Indicator!
*by L***Y on January 26, 2026*

Note: This is NOT a carbon pile tester of old but a great tool to perform a quick check. And it is also much lighter, convenient and more compact than Ol Smokey. I found this works best when directly connected to the battery vs the "access nipples" under the hood on my 2024 Audi A5 when testing for load. My battery in is in the trunk under the spare tire. When tested from the access points, the battery tested low but when directly connected, showed up a more believable 55% on the OEM battery. (Note I live in Florida and the heat takes a toll, so I have "learned" to test periodically.) On my bride's Ford Escape, you have to hold your tongue right to get good connections as the battery is under the cowl and I didn't feel like removing the hold downs to pry it out to get a better hands free connection but on that car, it showed a 80% on a 2 yr old Interstate ostensibly made for the hot climate. The other test functions are viable with the most interesting to me the ac ripple test (anyone who owned a 7th gen maxima can appreciate that early warning as those OEM alternators failed regularly every 100,000 to 150,000 miles with High Ripple (don't know if that issue still exists with their diode packs of today but it ran very hot under the hood and those diodes were NOT mil-spec!! :) ) I also appreciated the "dumb guy" indicators when you didn't ensure a good connection. Really helped with those "DOH!" moments. The voltage reading was spot on when compared to my fluke and old Simpson 260b. Nice Job.

### ⭐⭐⭐⭐⭐ Easy, Reliable 3-in-1 Battery Tester
*by M***E on December 27, 2025*

I just installed a brand new car battery and checked it with the TOPDON BT100. It showed the battery was bad, which probably saved me from being stranded. The battery was under warranty, so I got a new replacement. The tester is very easy to use and gives clear results. I especially like that it’s a true 3 in 1 tool: it tests battery health, checks the engine crank, and measures the charging system. Now I can conveniently check my battery anytime without going to AutoZone or O’Reilly Auto Parts. This is a great value and definitely worth keeping in the car.

### ⭐⭐⭐⭐⭐ Easy to use!
*by R***S on February 7, 2026*

This worked well for me. It told me that I needed to replace my battery and was very simple to use. Worth the money!

## Frequently Bought Together

- TOPDON BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-20*