Having read similar perspectives I was always annoyed that there was no way to essentially pause the charging and perhaps run via trickle charge at a set percentage, so if I'm tethered to a desk for a week I could keep the battery at 70% and then choose to bring it to 100% if I expect a long day away from an outlet. Perhaps this is not plausible for some reason? Would it be control required at the battery firmware level? (Referring to an Apple laptop for example)