TOPDON BT100 12V Battery Tester

TOPDON BT100 12V Battery & System Tester

12V Battery & Electrical System Tester

The TOPDON BT100 is a compact 12V battery tester designed to assess battery health, cranking performance and charging system operation. Compatible with multiple 12V lead-acid battery types, it measures State of Health (SOH), State of Charge (SOC), internal resistance and cranking voltage. With dedicated battery, cranking, charging and ripple tests, the BT100 provides clear diagnostic results through its backlit LCD display and LED indicators, making it suitable for professional workshops and home garages.

TOPDON BT100 12V Battery and Electrical System Tester

Main Features

Comprehensive Battery, Cranking and Charging System Testing – Combines battery health, cranking, charging and ripple tests in one compact diagnostic device, providing essential information for identifying battery and electrical system issues.
Complete Battery Health Assessment – Measures State of Health (SOH), State of Charge (SOC) and internal resistance to provide a detailed overview of battery condition and performance.
Three LED Battery Status Indicators – Features three LED indicators displaying GOOD, CHARGE or BAD status, allowing users to quickly identify the battery's general condition.
Accurate Cranking System Analysis – Evaluates starting performance by measuring cranking voltage and time, helping identify potential battery weaknesses that may affect engine starting.
Charging System and Alternator Testing – Analyses ripple, loaded and unloaded voltage to assess charging system performance and help identify potential alternator-related issues.
Wide 12V Lead-Acid Battery Compatibility – Supports regular flooded, AGM flat plate, AGM spiral, GEL and EFB battery types, making it suitable for a range of automotive applications.
100–2000A Battery Testing Range – Provides a broad testing range suitable for assessing batteries used in applications ranging from passenger vehicles to larger trucks.
Clear 2-Inch Backlit LCD Display – Presents digital diagnostic results on a backlit display, supporting easy reading in different lighting conditions, including low-light workshop environments.
Compact and Portable Design – Features a lightweight, compact construction that makes the BT100 convenient to carry, store and use in professional workshops or home garages.

Package Includes

1 x TOPDON BT100 Battery Tester
1 x User Manual
1 x Quick User Guide

Why Buy the TOPDON BT100 Battery Tester?

TOPDON BT100 digital battery tester with LCD display.

Comprehensive 12V battery, cranking and charging system testing

Battery State of Health (SOH) and State of Charge (SOC) assessment

Internal resistance measurement

Cranking voltage and starting time analysis

Charging system and alternator performance testing

Ripple voltage testing

Compatible with flooded, AGM, GEL and EFB 12V lead-acid batteries

100–2000A battery testing range

2-inch backlit LCD display for clear diagnostic readings

Three LED battery status indicators: GOOD, CHARGE and BAD

Compact and portable design for workshop and home garage use

TOPDON Battery Tester Comparison

Comparison Table: TOPDON BT100 | TOPDON BT200 | TOPDON BT300P | TOPDON BT600

	TOPDON BT100	TOPDON BT200	TOPDON BT300P	TOPDON BT600

Battery Type
Testing Voltage	12V	12V / 24V	12V / 24V	12V / 24V
Application	Flooded / AGM / Gel / EFB / VRLA	Flooded / AGM / Gel / EFB / VRLA	Flooded / AGM / Gel / EFB / VRLA	Flooded / AGM / Gel / EFB / VRLA
Testing Range	100–2000 CCA / 30–220Ah (GB)	100–2000 CCA / 30–220Ah (GB)	100–2000 CCA / 30–220Ah (GB)	100–2000 CCA / 30–220Ah (GB)
Battery Standard	CCA / CA / BCI / MCA / DIN / IEC / EN / SAE / JIS / GB	CCA / CA / BCI / MCA / DIN / IEC / EN / SAE / JIS / GB	CCA / CA / BCI / MCA / DIN / IEC / EN / SAE / JIS / GB	CCA / CA / BCI / MCA / DIN / IEC / EN / SAE / JIS / GB
Test Function
Battery Test	12V	12V	12V	12V
Cranking Test	12V	12V / 24V	12V / 24V	12V / 24V
Charging Test	12V	12V / 24V	12V / 24V	12V / 24V
System Test	-	-	-	12V
Ripple Test	✓	✓	✓	✓
Resistance Test	-	-	-	-
Sequence Test	-	-	-	-
Data Retrieve	1 time	1 time	1 time	1 time
Software
Software Update	-	-	-	✓
Screen
LCD Display	2" Backlit	2.4" Colour	2.4" Colour	3.5" Colour
Other
Built-In Printer	-	-	✓	✓
Languages	EN / ES / FR / DE / IT / RU	EN / ES / FR / DE / IT / PT / RU / JA	EN / ES / FR / DE / IT / PT / RU / JA	EN / ES / FR / DE / IT / PT / RU / JA
	LEARN MORE	LEARN MORE	LEARN MORE	LEARN MORE

TOPDON BT100 Battery Tester – Technical Specifications

TOPDON BT100 12V battery health and diagnostic testing device

Model: BT100

Display: 128x64 LCD display

Working Temperature: -20°C~65°C (-4°F~140°F)

Storage Temperature: -20°C~70°C (-4°F~158°F)

Dimensions: 136.5mm x 75.5mm x 22.5mm (5”x3”x1”)

Weight: 260g (.6 lbs.)

Delivery

99% of purchases are dispatched from our Melbourne warehouse within 24 hours of payment. Every parcel is shipped with Australia Post e-Parcel, complete with tracking and signature on delivery.

Need it sooner? Express shipping is also available—check if your postcode is in the Next Day Delivery network.

Returns

Shop with confidence. We offer a 30-day money back guarantee on all orders. If you’ve had a change of mind, simply return the item in re-original condition and we’ll make it right.

Warranty

All AZscanners products are backed by a 12-month warranty (unless otherwise stated). We stand by the quality of our tools and will repair or replace your item if a covered fault arises.

Buying your scan tool should feel easy, safe, and backed by a team you can trust.

That’s why thousands of mechanics, fleets, and car owners across Australia choose AZscanners. Here’s our promise to you:

Trusted Since 2013

We’ve been Australia’s go-to supplier of premium diagnostic scan tools for over a decade. From workshops and mobile mechanics to DIY users, we’ve built our reputation on quality, reliability, and real support.

30-Day Money Back Guarantee

Changed your mind? No problem. You have 30 days to return your item in its original condition for a full refund. It’s our way of making your purchase completely risk-free.

Quality You Can Count On

Every product in our range is hand-picked for performance, compatibility, and durability. Whether you’re after a professional-grade scan tool or an easy solution for home use, we’ve got you covered.

Local Support that Cares

We don’t just sell scan tools — we support them. Our team of technicians is here to answer your questions before and after purchase, so you’re never left on your own.

Fast & Reliable Shipping

99% of orders are shipped within 24 hours (from our Melbourne warehouse) with tracking and signature included. Need it quicker? Express delivery is available.