The Reader

Thank you Patrick, you did pretty well, not only did I understand
it but it also answered most of my questions! LOL The second port
on the CP506 is simply for charging a second phone or bluetooth
item... both ports put out the same amount of power. So, I guess
it does not matter which unit I would get then based on what you
have said... now to find a good price! Thank you very much, your
help is greatly appreciated.
Kelly
http://www.pbase.com/nikonkelly

----- Original Message -----
From: Patrick - Sprint Repair
To: apple-iphone@yahoogroups.com
Sent: Friday, April 30, 2010 3:26 PM
Subject: RE: [apple-iphone] Bottom part of touch screen doesn't
respond

In almost all electronics, voltage needs to remain as close as
possible to
the target spec.
So a 5.0v device needs to have as close to that as possible.

The current is the amount of power the device is drawing. The
current
rating, such as you list below as 1000mAh or mA is the amount of
capacity
the device can put out. The higher the number the higher the
capacity of the
device. You can hook up a freaking car battery to a phone and as
long as the
voltage is right, it wont hurt the device. Also keep in mind
1000mAh is = to
1A

As far as it being 5 or 5.3 volts, I am not sure what the actual
tolerances
of the iphone are, but the .3v shouldn't be enough to harm the
device.

With both of those devices, they are still external batteries
acting as
power supplies to your device. Charging a battery with a battery
is not very
efficient but its possible.

With those devices, they plug into the data / charging port of
your iPhone
and if memory serves me correct, theres voltage regulating
circuitry in
there to keep the input voltage from spiking or droping and
hurting your
device.

Now if you bought a battery to put INSIDE your device, the you
have to be
more carefull about the voltage matching, but the reality is the
device
still has certain tolerances to higher or lower voltage. Its
never really
constant for a long period of time. As the battery looses power,
it will
drop voltage, even though it still works.

It looks like to me, the 2nd device has 2 USB outputs limited to
500 mAh,
for a total combined out put of 1000mAh .

Computers are the same way, they are designed for 5V at 500mAh.

Now some devices slow and rapid charge. Some HTC devices come to
mind, so
500mAh might not be enough to charge a battery, so this company
looks like
they solved the issue by giving 2 ports.

The first shows 600mAh output but looks like just 1 output. So a
device
looking for say 750mAh might not charge properly because the
current is
insufficient to charge it. I think the Palm Pre comes with a
1000mAh
charger. That's a good example.

Hope this helped. If not email me back.. LOL

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