No, you do not have to have a 100% battery to download music.
Did to mine before I even got it fully installed!
It is always good to charge a battery to its full capacity before it is fully charged.
No - not at all. It will simply need charging a bit sooner than if you'd let it get fully charged.
No, but it will work better if it is fully charged.
Rechargeable batteries normally have to be charged fully before first use.
When it is charging the screen reads: Battery Charging. When it is fully charged it reads: Battery Charged.
A fully charged 12 volt automotive battery should have 12.68 volts.
Yes
A charged body is a body that was fully charged that can either positively or negatively charged.
Not fully, but these days come more than half charged, yes.
Yes it's safe to do so you just won't have a full battery.
as far i think,there is no current flowing between two fully charged capacitor.current flow in a capacitor happens until it gets fully charged.if it is fully charged then there is no lack of potential,so no current flow.