Is it possible to place a battery in and charge/start the watch without the screen plugged in? I want to check integrity of the battery. I was thinking to put it on charge in a closed clear plastic container without the new screen on to see if the battery is good. I ‘really’ do not want to wait another 20 days for a battery replacement and the battery has no visual punctures, front looks good and the back where the adhesive is (or were, rather) is deflated and slightly ‘knobby’. I do not know if it is damage or just how it generally looks like or maybe it looks like so because of the old adhesive. It is not inflated or abnormally expanded. Anyone who knows about this? I used a hair dryer directly on the watch opened to loosen up the adhesive, is that a no-no?