OK, I've read various posts and watched a few Youtube vids about battery care. So I am wondering how the DJI smart battery counts down it's remaining battery life. For example, if after flying my Phantom and discharging it to say 20%, I go home and charge to 50% and store for 2 or 3 days or even longer before next use. Then just before using the Phantom again I top up the battery from 50% to 100%. My question is, how does the smart battery view this type of 2 stage charging? Will the battery count that it has been charged twice or only once? Will this type of charging regime actually cause the battery to have a reduced lifespan as opposed to charging from 20% to 100% and then storing in a fridge?