Hi everyone! Had a question so I thought I'd post it on the forum here. I got an anker battery case a few months ago for my iphone 6s and I've loved it. But something's been bothering me lately. I noticed when i plug it in to charge at night, the phone charges to 100% before the battery case starts to charge, which I understand is normal. But I've also noticed after the phone reaches 100% and the case starts charging, the battery icon on my phone indicates that it's still charging. I tend to leave my phone charging overnight every night, so is this harming my phone or case's battery in the long run?