When companies/other users/anywhere state that a battery lasts so many hours (like say 3 hours) is that 3 hours from pulling it off the charger fully charged, or 3 hours "on."
Because I'm wondering if, for say I go to take one to school and only use it in the 10 minuets I have between walking to class X 4 10 minuet class brakes= 40 minuets of battery "time."
Or am I going to need 2-3 batteries to cover the 1hr trip there, 4hrs of classes, and 1hr trip home?
Providing that there is no unwanted automatic battery "on" time.
Because I'm wondering if, for say I go to take one to school and only use it in the 10 minuets I have between walking to class X 4 10 minuet class brakes= 40 minuets of battery "time."
Or am I going to need 2-3 batteries to cover the 1hr trip there, 4hrs of classes, and 1hr trip home?
Providing that there is no unwanted automatic battery "on" time.