Batteries
Occasionally, people don't empty their pockets
fully and later find them in the washing machine after all the cycles are
complete.
...Even more amazing is the
fabled "battery gauge." How does it really calculate how long it will be until
your device hasn't enough juice to
work?
...For example, my digital camera
takes rechargeable AAs. My camera was used to take about 356 pictures
yesterday*, on 4 batteries. The first pair lasted for 238 of them, the last 199
of which were taken within the same 2-hour span. So, my camera was on almost
continuously for that time, during which I took about 50% of them with flash.
And throughout that whole while, it warned me of a low
battery.
...On the other hand, my cell
phone has a 3-bar gauge in a cute battery-shaped icon. 3 means something like
100% to 10% charge.... And 1 Red Bar means THIS PHONE WILL
EXPLODE.
...So, how long does my phone
actually last?... And like today, I occasionally run out of juice.
Batteries are interesting things. They hold
charges. Occasionally, people don't empty their pockets fully and later find
them in the washing machine after all the cycles are complete. Er...I may have
drifted off-track there.
Even more
amazing is the fabled "battery gauge." How does it really calculate how long it
will be until your device hasn't enough juice to work? I think it's by
magic.
For example, my digital camera
takes rechargeable AAs. My camera was used to take about 356 pictures
yesterday*, on 4 batteries. The first pair lasted for 238 of them, the last 199
of which were taken within the same 2-hour span. So, my camera was on almost
continuously for that time, during which I took about 50% of them with flash.
And throughout that whole while, it warned me of a low battery. For 2 hours? Oh,
no. Panic.
On the other hand, my cell
phone has a 3-bar gauge in a cute battery-shaped icon. 3 means something like
100% to 10% charge. 2 bars means 20-30 minutes left. And 1 Red Bar means THIS
PHONE WILL EXPLODE. (Well, eventually.) No, no. It means like...6
minutes.
So, how long does my phone
actually last? I don't know, because I don't quite charge it every day. And like
today, I occasionally run out of juice.
Oops.
*Actually, 367, but I threw 11
away.
Posted: 木 - 9月 28, 2006 at 08:42 午後