Most USB Ports on computers are limited to 500mAh.
The supplied wall wart for an iPhone 4 is 1000mAh or 1Ah.
The supplied wall wart for an iPad is 2000mAh or 2Ah.
The iphone should regulate its self to 1000mAh max current draw when
charging. SO if your using a charger that produces more current then its
needing the phone will limit its self to prevent it from charging to fast
and over heating.
On Sun, Mar 11, 2012 at 10:21 PM, Gmail <whiterabbit32@gmail.com> wrote:
> **
>
>
> I get it. Thanks for the explanation :-)
>
Alice
>
> On Mar 11, 2012, at 4:05 PM, "N.A. Nada" <whodo678@comcast.net> wrote:
>
> >
> > On Mar 11, 2012, at 1:15 PM, Gmail wrote:
> >
> > > I haven't upgraded to the iPhone 4s, so haven't had any battery
> problems.
> > >
> > > On the charging slowness, charging with the cord that comes with the
> iPhone, I found it kind of slow. I have an iPad that has a cord that has a
> bit more power. I use the iPad cord to charge my iPhone 4. It seems to
> charge the iPad faster. In fact, I went and bought a second iPad cord just
> to charge my iPhone 4. I asked a Genius Bar guy at my local Apple store
> about charging my iPhone with an iPad charger and he said its ok, that it
> won't ruin the iPhone or the iPhone battery. I also found that charging via
> a wall plug charges faster than than hooking up to your computer. Hope that
> helps :-)
> > >
> > > \
> > > \ /\
> > > ( )
> > > .( ). Alice
> > >
> > > On Mar 11, 2012, at 10:39 AM, Sherry Brown <casoapgoddess@att.net>
> wrote:
> > >
> > > > I noticed the same problem with my iPhone 4. And it takes forever to
> > > > recharge.
> >
> > What you are charging from, is what makes the difference, not the cable.
> If you are charging from a USB port off another device, it can not provide
> much power, so it takes longer. The iPhone wall wart is better, but the
> iPad wall wart provides even more power.
> >
> > Brent
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