Batteries are a type of DC power source widely used in daily life and are popular in vehicles and machine equipment.
To judge whether a battery is good or bad, you can't just use an ordinary power meter to judge. Because with a voltmeter, even if the battery is damaged or dead, you can still measure the voltage...
The battery measuring device dedicated to the tester is designed with a large-capacity resistor to load the battery, and the clock display is very easy to view.
The battery tester is easy to use and can check the quality of the battery in just a few steps.
There are two modes: Mode 1 is the no-load mode, checking the battery voltage
Mode 2: It is a mode to check the battery discharge with a dummy load:
Before checking the discharge, the battery needs to be fully charged, and when the battery is fully charged, check the "health" of the battery.
Move the switch to the right for about 3-5 seconds, be careful not to take longer.
If the needle is at 10-11v, the battery is still good
If the pointer is below 9V, the battery is damaged and needs to be replaced.
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