I have my CM15a plugged into my computer and the wall outlet. I put new batteries in it about 1 month ago. I am using timers and macros but I noticed on AHP that the battery indicator was red when before it was green. I changed the batteries to brand new ones once again and it is green again. So my question is, what gives? Is it using battery power when the CM15a is plugged in? I haven't had any power outages and I control all my modules through the powerline.