Fw: Re: [OT] iPad query...

[Gareth Cook <g@xxxxxxxxxx>]

What about a cheap USB hub that has either just enough to trickle
charge,
or enough grunt to do a full charge - is it 10w ?





Superb - I'm so pleased that your iPad charges unusably slowly from your
PC only if it is turned off - that is a very useful way for a product to
work ... stops anyone finding bugs in your software I suppose.

Sorry - I'm being flippant but to sync and charge from a PC *ONLY* if the
screen is turned off is pretty bloody useless - surely someone at Apple
would have thought that it would be much better to be able to charge the
unit *AND* sync it at the same time rather than have to fanny about trying
to work out what devices are able to supply more power than the USB spec
and what devices are able to supply *MUCH MORE* than the USB spec?

My original point was to try to find some way to get the iPad to charge
from the supplied adapter *AT THE SAME TIME* as being connected to a USB
host device and hence remove all the debate and query about "Will it
work
when attached to this host device?"...

Phil

On 10 Oct 2010, at 19:35, clax01011971 wrote:

>
>
> My iPad charges via my PC the exact way Gareth mentioned.
> If I plug it in, sync it then turn the screen off it will charge but
if
I turn the screen on while it's charging the "not charging"
message
displays. I've (sort of) got used to not being able to use it while it's
charging this way but the most annoying thing is that I have to keep
unplugging the cable to read what the current power percentage is.
>
> Dave
>
>
> --- In ukha_d@xxxxxxx, Phillip Harris <phil@...> wrote:
>>
>>
>> On 10 Oct 2010, at 16:42, Gareth Cook wrote:
>>
>>> When connected to your PC/MAC via USB, it does start trickle
charging
when
>>> the screen blanks
>>>
>>> Unless stated otherwise above:
>>> IBM United Kingdom Limited - Registered in England and Wales
with
number
>>> 741598.
>>> Registered office: PO Box 41, North Harbour, Portsmouth,
Hampshire PO6
3AU
>>>
>>
>> Yes - supposedly - however that assumes two things...
>>
>> 1) You leave your PC on permanently.
>> 2) The reports on the internet are correct.
>>
>> Unfortunately practical experience appears to contradict the
internet
masses - if I plug the iPad into my PC and sync it then leave it (leaving
the PC on) it steadily *DISCHARGES* just as it does if it isn't connected.
It does this when connected to my Naim DAC via USB (however an iPhone
charges from the DAC).
>>
>> The generally held belief is that the USB ports on Macs charge the
iPad
because they're simply capable of supplying higher power than normal ports
but if that were the case (i.e. it's a hardware only difference) then if I
plug my iPad into the same USB port on my 17" MBP then it should
charge no
matter whether I'm running OSX or Windows (via Bootcamp) but that isn't
the case - the same port that charges the iPad under OSX gives a "Not
Charging" message under Windows (via Bootcamp).
>>
>> Phil
>>
>> [Non-text portions of this message have been removed]
>>
>
>
>
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