The purpose for me is to pause my system and resume without draining any battery juice. I have a portable small dev laptop and when I close the lid it suspends

The purpose for me is to pause my system and resume without draining any battery juice. I have a portable small dev laptop and when I close the lid it suspends nicely. However, a day or two later when I want to do some work the battery is 80% drained. A few times it even drained completely so when I booted my wifi drivers were corrupted. Had to spend nearly an hour fixing it up. Still loving linux though, it still feels like I'm in control of my machine but as I get older I tend to not want to keep on fixing things all the time, just want it to work.