I bought a Moto G from Motorola, and it doesn't come with a

[Bert]

In news:MPG.2d5ac5965ab3c0c989696@news.eternal-september.org Seth
Goodman <seth_news@yahoo.com> wrote:

> Any Motorola charger ...

In the bad old days, Motorola played games with their phones and
chargers (jumpers and/or resistors in the phone-end of the USB cable)
such that the phones would only charge from Motorola chargers or
accurate clones. They wouldn't charge from a PC USB port unless Motorola
drivers were installed.

These days, I'm pretty sure any charger with an adequate current
capacity will work.

--
bert@iphouse.com St. Paul, MN

 

[Leviatan]

A Danny D'Amico se le ha ocurrido que:

Yes. But if the Moto-G spec is really 1 amp to 1.5 amp
recommended charger capability, the real question is
whether your laptop and car adapter can meet the current
spec for the Moto G.

Linear or switched voltage regulators, as the ones used in phone
chargers, are mostly self current limiting, so there is no risk, just
that moto-G will tabe a bit longer to charge.

--
Un saludo,
Alberto

 

[Leviatan]

Danny D'Amico, pensando en voz alta, dice:

And, certainly, you're not going to get a 1.5Amp charger for 3 bucks
as someone here had proposed. If you can, please post the URL to the
site and I'll buy a dozen!

http://dx.com/s/usb+car+charger+1.5A

Enjoy!

--
Un saludo,
Alberto

 

[James Grady]

On Tue, 04 Feb 2014 08:59:30 -0500, SC Tom wrote:

The output of the charger really doesn't matter, as long as it meets the
minimum requirements of the device

Which is as much as 1.5 Amps!

So, it /does/ matter.

A lot!

Most usb chargers can't deliver anywhere near that current.

Some can, of course. So, it matters a LOT to get those that can!

 

[gregz]

Bert <bert@iphouse.com> wrote:

In news:MPG.2d5ac5965ab3c0c989696@news.eternal-september.org Seth
Goodman <seth_news@yahoo.com> wrote:

Any Motorola charger ...

In the bad old days, Motorola played games with their phones and
chargers (jumpers and/or resistors in the phone-end of the USB cable)
such that the phones would only charge from Motorola chargers or
accurate clones. They wouldn't charge from a PC USB port unless Motorola
drivers were installed.

These days, I'm pretty sure any charger with an adequate current
capacity will work.

Wasn't that long ago, my flip phone was like that.

Greg

 

[Rodney Pont]

On Fri, 7 Feb 2014 09:09:15 -0500, SC Tom wrote:

3.1 Amps on each port simultaneously is six amps of power
(if it really can do that) out of a cigarette lighter socket!

OOps. Six amps of current (not power!).

The power would be 6A x 5V = 30 Watts!


I find it strange that the power points in my Escape are fused at 15A, and
my lighter is on a 40A fuse! I kinda would have thought it would be the
opposite.

Don't forget that the lighter is a short when you first press it in and
the resistance rises as it heats up so it will take a large initial
current which drops as it heats.

At 12v 30W is 2.5A and they wouldn't have any problem supplying that
Danny. I'd expect them to be able to supply 8 amps depending on the
quality of the plug and you can buy sockets rated at 20A.


--
Faster, cheaper, quieter than HS2
and built in 5 years;
UKUltraspeed <http://www.500kmh.com/>

 

[SC Tom]

"James Grady" <jgrady@not.for.spam.calmes.edu> wrote in message
newsan.2014.02.07.00.30.30@not.for.spam.calmes.edu...

On Tue, 04 Feb 2014 08:59:30 -0500, SC Tom wrote:

The output of the charger really doesn't matter, as long as it meets the
minimum requirements of the device

Which is as much as 1.5 Amps!

So, it /does/ matter.

A lot!

Most usb chargers can't deliver anywhere near that current.

Some can, of course. So, it matters a LOT to get those that can!

You obviously missed the last part of the sentence. Let me quote it for you:
"as long as it meets the minimum requirements of the device". If you're
going to take one line out of context, at least be accurate about it

Even if a device calls for 1.5A, it will still be charged by a .5A output.
It'll just take a lot longer to do so, and would probably need to be turned
off in order to complete the charge cycle. I have an Asus tablet that
"requires" a 2.1A charger, but will still charge to completion with my .7A
phone charger, if I turn it off and leave it plugged in overnight. I have
done that a few times when I inadvertently forgot to pack the tablet
charger.
--
SC Tom

 

[SC Tom]

"Danny D'Amico" <danny@is.invalid> wrote in message
newsan.2014.02.06.17.07.23@is.invalid...

On Thu, 06 Feb 2014 17:55:55 +0100, Leviatan wrote:

Linear or switched voltage regulators, as the ones used in phone
chargers,
are mostly self current limiting, so there is no risk, just that moto-G
will tabe a bit longer to charge.

I understood that the risk of the Moto-G sinking too much current is
minimal (since I assumed it had current-limiting circuitry to prevent
battery overcharging).

However, if the Moto-G takes, say, 1 Amp to just run whatever is running
on it (admittedly high, but this is just a worst-case scenario), and if
the USB port is only a typical 500mA port, then the battery will slowly
discharge.

In practice, if you're charging your Moto-G, most of the time you're not
also using it, except in the case of GPS and bluetooth and dashcams which
is what you'd be using in a car.

So, the key problem is that the *car* charger has to be beefy just to
keep up with the demands of the phone, and not just those of the battery.

PS: I'm debugging exactly that problem on my Samsung Galaxy S3 as we
speak.

There are a couple of games that when I run them on my Asus Memo Smart10,
the charger mostly "breaks even", or the battery will still slightly
discharge while on the charger. It's a 2.1A charger (came with the tablet),
but still won't keep up. One that comes to mind first is "Real Racing". My
guess is between the processing power required, the graphics, and the
constant wifi connection, it's more than the poor battery can handle :-(
If I disable the wifi (airplane mode), it'll do OK, but when off charger,
it's still a drain on the battery. I usually reserve playing that game when
near an outlet

I haven't played the game while in the car, but I have a USB car charger
that works fine when using the GPS travel program. It has a dual output of
1A and 2.1A. I got it from Amazon a while back for my old Creative Labs MP3
player, but it works great for my phone and tablet now.

<http://www.amazon.com/gp/product/B003PU01M4/ref=wms_ohs_product?ie=UTF8&psc=1>

I don't recall what it cost them, but it wasn't as expensive as it is now
:-( I see there's a new daul-2.1A one available.
--
SC Tom

 

[SC Tom]

"Danny D'Amico" <danny@is.invalid> wrote in message
newsan.2014.02.06.17.30.26@is.invalid...

On Thu, 06 Feb 2014 17:26:56 +0000, Danny D'Amico wrote:

3.1 Amps on each port simultaneously is six amps of power
(if it really can do that) out of a cigarette lighter socket!

OOps. Six amps of current (not power!).

The power would be 6A x 5V = 30 Watts!

I find it strange that the power points in my Escape are fused at 15A, and
my lighter is on a 40A fuse! I kinda would have thought it would be the
opposite.
--
SC Tom

 

[Anssi Saari]

Danny D'Amico <danny@is.invalid> writes:

On Thu, 06 Feb 2014 17:26:56 +0000, Danny D'Amico wrote:

3.1 Amps on each port simultaneously is six amps of power
(if it really can do that) out of a cigarette lighter socket!

OOps. Six amps of current (not power!).

The power would be 6A x 5V = 30 Watts!

Well yes, but remember the original purpose of that socket. It takes
considerable power to heat a coil to the bright orange glow to light a
cigarette. And these days people like to plug in mini-fridges and
whatnot, also inverters to run their mains voltage stuff in cars so
probably the limits on power output have gone up if anything.

Quick googling says typically the fuse for the lighter is 10-20 A, so
from the typical 14-ish volts (while engine is running) that's 140-280
watts.

 

[Jeff Liebermann]

On Fri, 7 Feb 2014 09:09:15 -0500, "SC Tom" <sc@tom.net> wrote:

I find it strange that the power points in my Escape are fused at 15A, and
my lighter is on a 40A fuse! I kinda would have thought it would be the
opposite.

Ever seen a cancer stick lighter octopus connector? Something like
this:
<http://www.amazon.com/Three-Way-Cigarette-Lighter-Socket-Splitter/dp/B0018NB3OK>
In order for that to work, you would need 3ea 15amp fuses, one in each
plug, and a 45A fuse in the cancer stick lighter plug. If you reverse
the situation, plugging two devices into the octopus connector will
blow the 15a fuse.


--
Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558