[Null]

it doesnt matter how it drains. what the thing is with rechargable batteries, is they have almost a memory of sorts, thats why whenever you get something like that they always ask you to charge competely before use, if you charge half way use, charge half way and use, over and over, its possible that half way will be the full charge you get outta that battery.

so whats best for the battery is to be completely drained then recharged fully. going from empty to full. it wouldnt know the diffference if you drained it in 3 days or drained it in 1.