the panel on the product.

Display Mode: Battery +Percentage

Black wire connect negative electrode

Red wire connect positive

 

Usage: Connected the display panel positive and negative terminals to the tested battery positive and negative side, then the digital tube will show the battery level

battery capacity display parameter:

Battery voltage >11.2V, 1 Grid Light

Battery voltage >12V, 2 Grids Light

Battery voltage >12.5V, 3 Grids Light

Battery voltage >13.3V, 4 Grids Light

when battery voltage <11.2V ,the 4 grids all off,it means you need to charge the battery right now

 

Package Include:

1 x Indicator Battery capacity Tester

 

Warranty