Charging a mobile using USB3 lead

pappa_golf

but will your phone charge quicker on a 1a or 2a mains charger

Rubidium

50Twuncle wrote: »

https://en.m.wikipedia.org/wiki/Electrical_impedance
DC does involve impedence as does AC

You obviously do not understand what impedance is and using technical terms that you do not understand makes you look stupid.

You are still the ignorant one, if you use impedance when discussing a DC circuit which has a phase angle of zero. The charging current has a purely resistive load.

kwikbreaks

Having done the charging raisin side of things to death how about a good old bust up over USB ports - although capable of delivering 500ma and 900ma for USB 2 and 3 respectively ISTR that initially they only provide something like 100ma and higher sultana levels have to be negotiated by the device.

Do phones do that? I'm guessing that as most simulate USB drives they could but would they detect USB3 - probably not plus sfaik there are no usb3 microusb as used by most phones.

I've found the ideal app for twuncle though so long as he has an android device and the device supports it (only my phone does not my tablet).

https://play.google.com/store/apps/details?id=com.gombosdev.ampere&hl=en_GB

paddyrg

Lots of misunderstanding and name calling in this thread. Cutting to the chase -

Use a mains charger. Better mains chargers can supply 5v at more than 500mA, upto 2100mA I've seen, and it will be up to the phone to draw as much of that current as it chooses to.

The cable *can* make a difference - this is where a £4+ USB cable can be better than a £1 one - better/more copper inside = lower resistance = less power dissipated in cable = more for the phone to eat.

Quick Charge 2 (and QC3) actually mean something - the chargers are approved and certified by Qualcomm (who make phone processors), and can supply higher voltages. If your phone has a qualifying processor chip (eg a snapdragon 610) and Quick Charge 2.0 (or 3.0) enabled it will negotiate with the certified charger and instead of charging at 5v will charge at 9v or even 12v. It does this when the battery is almost empty, so can reach 50% in maybe 30 minutes, then it scales back the voltage to 5v as it's getting fuller for a trickle-style charge. If your phone supports QC2/3 then it is worth getting a QC2/3 charger (you can also get QC power banks too). The charger that came with your phone may NOT be compatible, so hold you back.

If you replaced the battery with a cheapo Chinese knock-off, be wary using QC chargers as things will get hotter as more power shunts around faster.

50Twuncle

Rubidium wrote: »

You obviously do not understand what impedance is and using technical terms that you do not understand makes you look stupid.

You are still the ignorant one, if you use impedance when discussing a DC circuit which has a phase angle of zero. The charging current has a purely resistive load.

go away cto€

50Twuncle

kwikbreaks wrote: »

Having done the charging raisin side of things to death how about a good old bust up over USB ports - although capable of delivering 500ma and 900ma for USB 2 and 3 respectively ISTR that initially they only provide something like 100ma and higher sultana levels have to be negotiated by the device.

Do phones do that? I'm guessing that as most simulate USB drives they could but would they detect USB3 - probably not plus sfaik there are no usb3 microusb as used by most phones.

I've found the ideal app for twuncle though so long as he has an android device and the device supports it (only my phone does not my tablet).

https://play.google.com/store/apps/details?id=com.gombosdev.ampere&hl=en_GB

Thanks - I will certainly give that app a try....

Rubidium

50Twuncle wrote: »

Thanks - I will certainly give that app a try....

Sadly the app won't change your lack of technical knowledge!

50Twuncle

paddyrg wrote: »

Lots of misunderstanding and name calling in this thread. Cutting to the chase -

Use a mains charger. Better mains chargers can supply 5v at more than 500mA, upto 2100mA I've seen, and it will be up to the phone to draw as much of that current as it chooses to.

The cable *can* make a difference - this is where a £4+ USB cable can be better than a £1 one - better/more copper inside = lower resistance = less power dissipated in cable = more for the phone to eat.

Quick Charge 2 (and QC3) actually mean something - the chargers are approved and certified by Qualcomm (who make phone processors), and can supply higher voltages. If your phone has a qualifying processor chip (eg a snapdragon 610) and Quick Charge 2.0 (or 3.0) enabled it will negotiate with the certified charger and instead of charging at 5v will charge at 9v or even 12v. It does this when the battery is almost empty, so can reach 50% in maybe 30 minutes, then it scales back the voltage to 5v as it's getting fuller for a trickle-style charge. If your phone supports QC2/3 then it is worth getting a QC2/3 charger (you can also get QC power banks too). The charger that came with your phone may NOT be compatible, so hold you back.

If you replaced the battery with a cheapo Chinese knock-off, be wary using QC chargers as things will get hotter as more power shunts around faster.

I agree - let's call a truce !!
The charger is the original one
My charger lead is a 2metre USB 3.0 Maplin one - don't think that the losses should be too bad on that ?
Battery original too

grumbler

50Twuncle wrote: »

https://en.m.wikipedia.org/wiki/Electrical_impedance
DC does involve impedence as does AC

DC resistance is a particular case of more general impedance, not "involves" it, and nobody uses this term for DC circuits.

spud17

50Twuncle wrote: »

..................................
The charger is the original one ...............................................

Have we established the specs of this charger?
We would then have something to compare.

Why the resistance? It's impeding the progression of this thread.