True, and writing down the starting watt hours and the ending watt hours and subtracting them is doing what the battery analyzer is doing. And yes, usually the bigger the load, the smaller the capacity. But it isn't always true of all manufactured batteries. Some actually have more capacity at higher loads. It depends on the chemistries. And yes aging also takes a toll on capacity as well as heat and temperature they are stored at. Here is a great video about all of this.
True, that is why Jim's battery bar jumped by a huge amount. Heck just today I had my Hotcig DX200 plugged into the USB checking a few things and I swapped lipo packs with a charged up one and the battery bar stayed on empty. It didn't show full until I unplugged from the USB and disconnected and reconnected the lipo. But it would have done it on its own once it checked the discharged graph again. I just didn't want to wait for it.
Otherwise she's gonna go apeshit thinking she needs to look after my son and my preggo wife 
).
