TOPDON BT100 – Battery Tester

TOPDON BT100 is a compact and accurate tester designed for 12V batteries, cranking systems, and charging systems. Suitable for both professionals and DIY users, it combines dealer-level accuracy, versatile testing functions, and simple operation. Ideal for routine battery health checks, troubleshooting failures, and diagnosing dashboard warning indicators.

Features

Comprehensive Testing in a Compact Tool
The BT100 performs battery, cranking, charging, and ripple tests, providing more insight than a basic voltage tester and allowing accurate fault diagnosis.

Complete Battery Health Evaluation
Tests include:

• State of Health (SOH)

• State of Charge (SOC)

• Internal Resistance

Results are displayed clearly on the screen, with three LED indicators:

• GOOD

• CHARGE

• BAD

True Starting Power Analysis
The cranking test measures starting voltage and time, helping determine whether the battery can reliably start the engine.

Charging System Diagnosis
Charging tests analyze ripple voltage, loaded and unloaded voltage values, making it easy to identify whether the issue lies in the battery or the alternator.

One Tester for All 12V Lead-Acid Batteries
Supports the following battery types:

• Flooded

• AGM Flat Plate

• AGM Spiral

• GEL

• EFB

Test range: 100–2000A. Suitable for passenger cars and larger vehicles.

Clear Results Anywhere
The 2-inch backlit LCD screen ensures excellent readability in bright or low-light conditions.

Specifications

Display: 128 × 64 LCD
Working Temperature: -20°C ~ 65°C
Storage Temperature: -20°C ~ 70°C
Dimensions: 136.5 × 75.5 × 22.5 mm
Weight: 260 g

Packing List

• BT100 Battery Tester

• User Manual

Attention – diagnostic functions and their availability vary by vehicle. Not all described functions may be supported on your vehicle.