[RAZR HD Q&A, Help & Troubleshooting] greydelta38:
First of all, I'm happy to be a part of the site now. I'm not new to Android in any way, but have only decided to join a forum because Motorola tech is no help at all, and I can't figure it out on my own.

So here's the story. When I plug my Maxx HD in at night, it functions perfectly, and seems normal. Normal temperature and charge rate. Let's say for example it was at 50% when I plugged it in just before I went to bed at midnight or so. But when I wake up in the morning, the phone is powered off and doesn't register as charging. I unplug it, and it won't power up regularly, so most of the time I have to soft reset just to get the screen on. When it boots up, it runs smoothly like nothing happened. The battery is usually 5% or 10% higher than it was when I plugged it in many hours ago, so it's safe to assume it locks up and shuts down fairly quickly after I fall asleep. I have yet to be able to recreate this problem while I am awake. I have tried disabling, reenabling, and uninstalling just about everything, and the problem doesn't seem to relate to anything in the software. The curious thing is that this problem does not occur regularly. Sometimes, it will happen 3 nights in a row. Other times, it won't happen for a week.

A side effect of this, it seems, is that when it does decide to hold a charge, it will run from 100% to 90% and hold there for an hour or so, no matter how lightly or heavily I use it. Then, out of the blue, it will drop to around 60% or 70%, and the rest of the day will drop at a regular rate.

I've been searching for a solution for this problem for weeks and haven't found a valid answer other than "use a Motorola charger" "get a new phone" the always relevant "Have you tried an FDR?", and the typical answers from a bored Motorola employee about whether I've turned the phone off and on again.

To reply to those answers, yes, I've used a regular Motorola charger, Verizon's most powerful and expensive speed charger, and even the cheapest charger I can find and it still shuts off and won't charge no matter the charger. I currently use the Verizon charger because it is the most convenient and fastest charging.

No, I can't return it because the RMHD was a trade. I don't have the receipt of any documentation of the purchase. I had an S3 that I disliked because, let's be honest, Touchwiz is intrusive and irritating at times, and I was too lazy to try and find a working rom for it. I cold traded some guy that lived near me for his RMHD, phone for phone. No chargers, no receipts. just straight up trade. His still had the plastic on the screen, and he claimed he changed his mind about it as soon as he took it out of the box and thought it was too thick, and wanted an S3.

As for the FDR, yes I've done that 4 or 5 times now with no change.

So my question is, is this a hardware problem or a problem with the battery sensor? I'm tempted to say that the battery sensor is defective and protects the phone from overheat by shutting it down even when it's at normal temperature and won't take any more charge. But if that was the case, why doesn't it happen every night? Any help is appreciated, and I'm prepared to hear someone say "suck it up until the S4 or the Motorola X is released". Thanks for your help, and if I need to root my precious HD to fix it, I'm prepared to do so.