Currently using starter batteries, have been since Novemeber. I've got 3 batteries, two came with a CE4 starter kit and the next came with a Ego Pro Mini pack. All 3 batteries seem to be having trouble with charge now. Though I suspect it is because I'm tooting persistently while I'm at home. However after 30 mins of putting on a charged battery the light is flashing 3 times. Some one has said short circuiting. What does that mean and how do I stop it? Sorry I'm a complete novice at all of this.