Introduction
The TOPDON BT100 Car Battery Tester is a versatile diagnostic tool designed to accurately assess the health and performance of 12V lead-acid batteries, as well as the charging and cranking systems of various vehicles. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure optimal use of your device.

Figure 1: TOPDON BT100 Car Battery Tester with its red and black clamps.
Setup
- Unpacking: Carefully remove the BT100 tester and its accessories from the packaging. Ensure all components listed in the product's







