diff --git a/About_Battery.pdf b/About_Battery.pdf index 8cb88bc..0cfa3d6 100644 Binary files a/About_Battery.pdf and b/About_Battery.pdf differ diff --git a/4WD_Smart_Car_Board_for_Raspberry_Pi.pdf b/Tutorial.pdf similarity index 100% rename from 4WD_Smart_Car_Board_for_Raspberry_Pi.pdf rename to Tutorial.pdf