Topdon BT50 - 1. Battery Test: Rate and Results; 1.3 Setting Test Rate; 1.4 Displaying Results; 1.5 Replacement Indicator

4) Press and hold the "▲" or "▼" button to select the battery
rating values (specied on the battery rating label).
5) Press the "OK" button to start the battery test.
6) The test result will display as follows:
7) Replace battery if test result displays as below :
2. CRANKING TEST
2.1 BEFORE TEST
The engine and all other accessory loads must be OFF in
order to get accurate results.
GOOD BATTERY