Hi, does anyone think this charger will work for the xperia? I don't want the battery to overheat if the voltage is too high.
http://www.newegg.com/Product/Product.aspx?Item=N82E16812107175
Thanks
It may work, but Belkin specs shows the power output at 500mA versus SE adapter at 700mA...I assume that it will charge your phone slower
TItle says most of it -- is there a chip does a "handshake" allowing for QC or will any generic high amp charger do the trick?
wakeborder556 said:
TItle says most of it -- is there a chip does a "handshake" allowing for QC or will any generic high amp charger do the trick?
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There is a "chip". There is a specific Quick Charge specification, and both the phone hardware and charger need to support it. It uses high amps during initial charging, then lowers to a trickle as it approaches 100%.
FYI I have both a high amp and a QC2.0 charger and have confirmed the above using a USB pass through volt/amp metre.
Could anyone tell me if I'm charging wirelessly at 5W or 15W?
On one hand the notification says 'Fast wireless charging' which I've read generally means 15W.
On the other, my charger, despite being marketed as having fast wireless charging, is only certified for 'Basic Power Profile (5 Watt)'.
(I am using the 2A wall charger included with the phone.)
Install galaxy charge current, that will give you the actual charge in mAh, so you can compare the performance in different charging scenarios you may have
I've tried three chargers now and I'm only getting 1500mah charge speed at 60% battery
Original Nokia Charger 2.5ah Charge Rate
Aukey Quick Charger 2.4ah Charge Rate
Generic 2ah charger
Anyone else getting slow charge speeds?
You getting low current because Nokia 8 supports QC3.0.
Quick charge uses higher voltage than standard charing.
Current stays low, but voltage goes up so total wattage is higher.
1.5A x 5V = 7.5W
1.5A x 9V = 13.5W (same current, but double power)
TeddyBeers said:
You getting low current because Nokia 8 supports QC3.0.
Quick charge uses higher voltage than standard charing.
Current stays low, but voltage goes up so total wattage is higher.
1.5A x 5V = 7.5W
1.5A x 9V = 13.5W (same current, but double power)
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But voltage doesn't increase charge speed, 1.5a would charge the phone in 2 hours whether it's at 5v or even 12v, my aueky charger can push 2a at 12v but it seems like this phone just doesn't like higher amperage.
As with all quick charge solutions the flatter my battery is the faster the charge rate, the fuller the battery gets the slower the charge rate gets.
ryanraven said:
But voltage doesn't increase charge speed, 1.5a would charge the phone in 2 hours whether it's at 5v or even 12v, my aueky charger can push 2a at 12v but it seems like this phone just doesn't like higher amperage.
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You're completely wrong.
Battery is 3090mAh at 3.7V
This is total 11.4Wh - this is tells you much more about battery, as knowing current without voltage means nothing.
(for example power tools batters are 4000mAh only, but at 18V gives huge 72Wh of power to use, 7 times more than phone battery)
back to Nokia:
11.4Wh / 1.5A / 5V = 1.5 hour
11.4Wh / 1.5A / 12V = 0.6 hour
As you can se voltage matters as it shortens time needed to charge by almost 3x.
Obviusly in real life battery will not charge that fast as there is a lot of loss on heat, voltage conversion etc.
TeddyBeers said:
You're completely wrong.
Battery is 3090mAh at 3.7V
This is total 11.4Wh - this is tells you much more about battery, as knowing current without voltage means nothing.
(for example power tools batters are 4000mAh only, but at 18V gives huge 72Wh of power to use, 7 times more than phone battery)
back to Nokia:
11.4Wh / 1.5A / 5V = 1.5 hour
11.4Wh / 1.5A / 12V = 0.6 hour
As you can se voltage matters as it shortens time needed to charge by almost 3x.
Obviusly in real life battery will not charge that fast as there is a lot of loss on heat, voltage conversion etc.
Click to expand...
Click to collapse
It definitely charges slower than any phone I've had ? my G5SPlus has a bigger battery and charges in half the time ? but like I said at any voltage it only pulls 1.5a from the plug so the 3090mah / 1500mah(ChargeRate) at any voltage from my 5v charger or my quick charger at 12v charges exactly the same 1.5ah which takes about 2 hours. In this case voltage doesn't make any difference in charge speed at least with my Nokia 8 device it never goes past charging faster than 1.5ah no matter what voltage the charger is.
Listen to TeddyBeers, as you are mistaken in thinking voltage doesn't matter.
At 5V and 1.5A, you have 7.5 watts of power to charge with. Assuming perfect efficiency, that means you are getting about 7.5/3.7 = 2A of charging current into the battery (at least, when the battery is sitting at around 3.7V).
At 12V at 1.5A, you have 18W of charging power. That means 18/3.7 = 4.9A at the battery.
The current through the USB cable does not matter, only the power! The voltage is converted inside the phone so that the battery charging current will NOT be the same as the USB current.
Hey all, anyone found a working alternative to the default charger and cables?
I've tried a couple wall chargers and cables that supports more than 55w (11V/5A), but none of them seem to display the yellow, fast charging status.
I tried xiaomi power bank pro 3. Which support 45w and samsung wall charger also 45w. Both charge the phone with 28w. I guess if you take a look at the oem vivo charger its 10w and 18w and 33w and 55w. So its not capable of anything else. You should probably use a 33w (11v- 3A) it should be ok. Or (11v-5a)