So my basic circuit is a PNP transistor with 6V (battery) on the emitter, a digital pin on the base and then two 1k resistors between the collector and ground. It seems that when I put the pin to LOW, nothing really changes, but when I unplug it entirely the transistor works as expected. This is to check the battery's voltage without having it constantly discharging.
well, that we ME trying to draw for the OP... I could be way wrong here... and a 1k (5ma) is usually just fine for a small signal transistor with 150-300 gain) If he's using a PNP power transistor, I agree with you.
Here is my charging circuit for a battery, NOW I am going to lunch. Please give me critiques on whether you think it will work or not.