2/9/2018
SunFounder 250 - Wiki
http://wiki.sunfounder.cc/index.php?title=SunFounder_250
6/12
Test Operations:
1.Check the back of the battery Indicator alarm, find the cathode pin marked with “-” (
①
of Figure 2-1).
2. Connect the cathode of the Alarm to the first cathode hole of the battery charging cord and the rest pins to the corresponding headers as shown in Figure
2-2.
3.If they are connected correctly, the alarm will beep for three times, and then it will display the total voltage of all the cells and the voltage of each cell, in
cycle.
4.The warning voltage threshold can be set by the button on the back of the alarm as shown in
②
of Figure 2-1. Each press will add 0.1V and the setting
will be saved automatically. The threshold value can be set to OFF (turn off alarm), or from 2.7V (default after manufactured) – 3.8V. You are
recommended to set it to 3.7V.
Figure 2-1
