Database Develop

AC Power Cable Option

Just wondering, I found these:
http://www.amazon.com/exec/obidos/t...t_shr?_encoding=UTF8&m=ATVPDKIKX0DER&v=glance
They are the correct micro USB charging units, but they are designed for Blackberry smartphones...Will these properly and safely charge our HD2's?
I love the folding plug design.

Hello Free Man:
FWIW..I had purchased one of these exact items from amazon. Haven't used it yet but I read the backpanel and the output is 5v @ 700ma. If you look at the backpanel specs for the wall charger shipped with your unit from HTC it'll show 5v @ 1A on the output. So the unit will work but will take slightly longer, I think.
Take Care

Well as long as it is safe to use, mine should be here in a few days. I would think it would simply take 30% longer to do a full charge and I am only really using the unit to charge overnight when on the road in hotels, so that is really not an issue as a full charge only takes a short time.
Anyone else want to step in and comment on the lower rating?

You are correct, this charger will take longer to fully charge the battery.
Just like charging from a PC USB port takes even longer since that only provides 500mA maximum.

It is absolutely safe to use chargers with lower ampere rating, the downside is that you will either get longer charge time it your device won't charge at all. But nothing will burn or explode.

So you are saying my device will charge safely, just take 30% longer? You mentioned something about it not charging at all, why would it not charge?
Will this shorten the batter life or anything to that affect? Thanks!
vangrieg said:
It is absolutely safe to use chargers with lower ampere rating, the downside is that you will either get longer charge time it your device won't charge at all. But nothing will burn or explode.
Click to expand...
Click to collapse

Free Man said:
So you are saying my device will charge safely, just take 30% longer? You mentioned something about it not charging at all, why would it not charge?
Will this shorten the batter life or anything to that affect? Thanks!
Click to expand...
Click to collapse
It may not charge at all if the device you are charging needs a certain amount of amperage in order to charge the battery.
No, this will not affect the battery life or anything to that affect.

Thanks, I plugged it in and charged it for 3 minutes and it did begin charging from 69 to 80% in that period, so it works fine and is quite fast. This battery charges fast in my experience.

Streak car charger

Just got a griffin powerjolt micro, comes with an ipod cable so you'll have to use your own, but it charges the streak up a treat
Think it was 12 pounds from amazon.
It's designed for iPads, which need 2 amps, it's rated for 2.1 amps. Charged from 30 to 60% in 20 mins while using gps.
Hope that's useful .
Sent from my Dell Streak using XDA App

For battery life is better to charge with low amps and for a long time. I would prefer ,not to use a charger with more than 1A

i got myself te belkin 1A charger. Should work good I guess.

As mentioned in the other thread, both these two work just fine :
https://www.dealextreme.com/p/car-p...cable-charger-set-for-apple-ipad-12-24v-45227
https://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
$6 or $2 including free shipping worldwide. You'll need the Streak's USB cable to connect it.

Anbuch said:
For battery life is better to charge with low amps and for a long time. I would prefer ,not to use a charger with more than 1A
Click to expand...
Click to collapse
The car charger does not force power into the phone, the phone draws what it needs. Using a power supply with a higher Amp rating means less strain on the charger not more power than is needed going into the phone.

Sorry for my bad English, I guess you do not understand what I mean.
You're right that the car charger with more amps does not force more power into the phone (I do not say that),but if you use a charger with more amps , charging time is less. The battery prefers long time charging with less charging amps. In fact using less charging amps ,the battery allowed to load more power (a little bit ). You can try it by using a USB port of yours computer to charge the battery.

Anbuch said:
Sorry for my bad English, I guess you do not understand what I mean.
You're right that the car charger with more amps does not force more power into the phone (I do not say that),but if you use a charger with more amps , charging time is less. The battery prefers long time charging with less charging amps. In fact using less charging amps ,the battery allowed to load more power (a little bit ). You can try it by using a USB port of yours computer to charge the battery.
Click to expand...
Click to collapse
Maybe it's just me, but what you are saying is exactly the same thing.
If the charger isn't forcing more power into the phone, then the charging time will not change. If the battery is receiving less current then what it was designed, such as a low powered USB port, then it would take longer then normal to fully charge. But once the charger puts out the amount of current that the battery will normally draw, the battery will only charge at that rate. Increasing the current beyond that amount will not speed up the charging time or push more current to the battery.

brianlp said:
If the battery is receiving less current then what it was designed, such as a low powered USB port, then it would take longer then normal to fully charge. But once the charger puts out the amount of current that the battery will normally draw, the battery will only charge at that rate. Increasing the current beyond that amount will not speed up the charging time or push more current to the battery.
Click to expand...
Click to collapse
Anbuch is trying to say that the battery will last longer in the first scenario - the longer, slower charge from the low powered USB port.
Quicker battery charging does degrade the cells in less time - if you were to always use a 500mA charger, you would get more life from the battery than if you were to always use the stock 1000mA charger.
You can pick up a replacement battery from eBay for $10, so none of this really matters - when your battery wears out in 18 months, just buy a new one.

Nomgle ,thanks, this is exactly what I wanted to say!
I just gave an example with a USB port. In fact a USB port and a stock 1000mA charger are save enough for the battery of a Streak (1530mA). I just wanted to say : Do not use 2100 mA charger
Flinx78 said:
.... it's rated for 2.1 amps. Charged from 30 to 60% in 20 mins while using gps....
Click to expand...
Click to collapse
This will "kill" the battery very soon

Some battery reading:
Understanding lithium-ion
Charging lithium-ion batteries
How to prolong lithium-based batteries
From the last page linked:
[FONT=Arial, Helvetica, sans-serif]Generally speaking, batteries live longer if treated in a gentle manner. High charge voltages, excessive charge rate and extreme load conditions will have a negative effect and shorten the battery life. This also applies to high current rate lithium-ion batteries.
Not only is it better to charge lithium-ion battery at a slower charge rate, high discharge rates also contribute the extra wear and tear.[/FONT]
Click to expand...
Click to collapse
.

I use a black&decker converter and it has a usb port already built into it and that works pretty good for me.
Sent from the phone killer of ALL phone's, Dell Streak!

Charger AMP question.

Hi everyone.
I recently got the Xperia Z and noticed the original charger packs a 1500mAh speed (which got me confused because I thought AMP referred to charging speed), but anyhow. I also bought a power bank (external backup battery) and the thing has 2 ports, 5V 1AMP and another 5V 2.1AMP. So I was wondering if the Z can take the 2.1AMP speed without damaging the battery. What do you guys think?
Thanks.

You won't harm it instantly no. Over time, yes.
The battery lives better if you charge it slowly, I charge mine with 500mA when I go to bed. I'd use the 2ma if you were really rushed.
My Stock charger is 1800mA btw. (Dock)

The phone will automatically limit the charging current (amperage), so the battery won't be charged too fast even if you use a 2A charger. I do not know at what amperage the XZ limits the current, but I suppose it's somewhere around the 1500mA of the standard charger.
On the other hand, charging with very low currents may also damage the battery. I read somewhere that prolonged use of a charger with less capacity than around 0.5c (c=the capacity of the battery; 2330mA) might be bad for the battery. Therefore it isn't recommended to only use the USB port of your computer (500mA).
So, for repeated use over long periods of time, a charger with a capacity of over 1165mA (0.5c) is recommended.

Well I don't know what to believe anymore :x

You can safely charge with almost any trusted-brand MicroUSB charger. As long as it's not broken or a cheap chinese knock-off or anything like that. It will output only as much as the phone will accept.
EDIT: 2.1AMP (as you state it) is 2100mA (milliamperes). That's it's current output. It does not refer to "speed" per se, but a battery will charge faster with a higher output charger. A 1000mAh battery will charge from 0 to 100% in one hour if you use a 1000mA charger. Or in half an hour with a 2000mA charger. That's the theory.
In reality, phones and batteries will have safety circuits that limit the charging current so that the battery won't get damaged. It simply will not charge faster than what's safe. If, say, our XZ is limited at 1500mA, then it won't let in more than 1500mA. No matter if the charger is rated at 1500mA or 2000mA. The phone will, however, accept less than 1500mA, but when the current sinks below a certain limit, the phone won't charge at all. That lower limit might be somewhere around 400mA. If your computer's USB port gives out considerably less than 500mA (which is the norm), then there might be something wrong with the port and the phone won't accept it.
For comparison, the Samsung Galaxy S II won't charge at any higher than 700mA. No matter if you connect it to a 700mA or a 2000mA charger, it will only take 700mA and that's it. The stock SGSII wall charger is 750mA.
The XZ, having a bigger battery, will charge at higher than that. I'm guessing 1400-1500mA because the stock charger is 1500mA.

Don MC said:
You can safely charge with almost any MicroUSB charger. As long as it's not broken or anything.
Click to expand...
Click to collapse
Awesome then, thanks a lot for your help

Let's face it. It's always best to go with the original charger. If you use a non standard charger the best practise is to use one that has a similar amperage. That said, my Power Bank case puts out 1amp via the dock pins, so... And it's made for the Xperia.
Sent from my C6603 using XDA Premium 4.
Ride it like you downhill it.

Ativ S charging time

Hello guys.
How long does it take for you to charge your Ativ S?
Mine takes about 5 to 6 hours. I think my charger is defective. I checked through the diagnostic app with *#0228# code and it was reporting 400 to 500 mA current. Tried with another 1A charger and diagnostic was reporting 898 mA charging current and phone was charging much faster. 30-40% per hour.
Thanks for any replies.
Sent from my GT-I8750 using Tapatalk

~2-3 hours for mine, which is closer to what you got out of the second charger. I assume you're referring to the things that plug into the wall? I usually just use my computer's USB port, which may or may not be able to push enough power to charge the phone rapidly (mine is, or close enough).

Yes, I mean the wall mounted charger. Then definitely my charger is defective. I'll have it replaced.
Thanks.
Sent from my GT-I8750 using Tapatalk

johnnymm123 said:
Yes, I mean the wall mounted charger. Then definitely my charger is defective. I'll have it replaced.
Thanks.
Sent from my GT-I8750 using Tapatalk
Click to expand...
Click to collapse
I had the same problem at the begin. My ATIV S was charging for ages so I took a Samsung mic usb cable from my sister and now my phone needs about 3h to be fully charged.
As I read on other forums there are more people having the same problem so that Samsung produced some defective cables and they are still selling them...

its just a simple case of Maths
1A charger should take half as much time than a 500mA charger, your computer USB socket will be about 500mA, of course if the device is powered on then you need to deduct some mA for the device to power itself, 100mA unloaded sounds reasonable for that.
Device has a 2300mAh Battery, if your pumping 800mA in to it your looking at around 3 hours, 6 hours if its around 400mA
if your old adaptor was rated at 1A then its possibly faulty, but its also possible the device maybe restricting it, some devices wont draw its full amount if the COM cables are not connected, some chargers don't bridge the COM pins thus the phone thinks it isn't able to get its full load and may only draw a limited supply. Usual suspects for these chargers are those sealed ones with a cable attached.

dazza9075 said:
its just a simple case of Maths
1A charger should take half as much time than a 500mA charger, your computer USB socket will be about 500mA, of course if the device is powered on then you need to deduct some mA for the device to power itself, 100mA unloaded sounds reasonable for that.
Device has a 2300mAh Battery, if your pumping 800mA in to it your looking at around 3 hours, 6 hours if its around 400mA
if your old adaptor was rated at 1A then its possibly faulty, but its also possible the device maybe restricting it, some devices wont draw its full amount if the COM cables are not connected, some chargers don't bridge the COM pins thus the phone thinks it isn't able to get its full load and may only draw a limited supply. Usual suspects for these chargers are those sealed ones with a cable attached.
Click to expand...
Click to collapse
Mathematics doesn't matter when the cable is broken. I tested both cables with the wall charger and with one my battery was fully charged after 3h and with the other in about 7h

CodingBird said:
Mathematics doesn't matter when the cable is broken. I tested both cables with the wall charger and with one my battery was fully charged after 3h and with the other in about 7h
Click to expand...
Click to collapse
did you read my comment about COM aka data? a broken power cable will either work or it wont, it doesn't resist enough to reduce the current by 50%, even if it was resisting it would take a droop on voltage not current, a broken or disconnected data cable can stop the device / PSU from taking / providing enough current

Z3C charger specs

Can anyone tell me what kind of charger does the Z3C use? I think I lost the one that came with it.

doriandiaconu said:
Can anyone tell me what kind of charger does the Z3C use? I think I lost the one that came with it.
Click to expand...
Click to collapse
Any charger that has Qualcomm QuickCharge 2 built in.
They are a little bit more expensive, but are worth it in my eyes.
They charge a lot quicker than normal chargers as the charger monitors battery temp and delivers maximum charge without stressing the battery.
I can charge my phone from under 10% to charged in 2 hours and it's not even warm.
When I plug the phone into my PC at work it gets really hot and I'm sure that's not good for the battery.

doriandiaconu said:
Can anyone tell me what kind of charger does the Z3C use? I think I lost the one that came with it.
Click to expand...
Click to collapse
Didgesteve said:
Any charger that has Qualcomm QuickCharge 2 built in.
They are a little bit more expensive, but are worth it in my eyes.
They charge a lot quicker than normal chargers as the charger monitors battery temp and delivers maximum charge without stressing the battery.
I can charge my phone from under 10% to charged in 2 hours and it's not even warm.
When I plug the phone into my PC at work it gets really hot and I'm sure that's not good for the battery.
Click to expand...
Click to collapse
It CAN be charged by any QC 2.0 charger but you won't get any out-of-the-box. The standard charger is EP880 paired together with EC803 charging/data cable. My original charger stopped working after just 10 months and now I'm using Blitzwolf BW-S2QC charger.
But it's true - quickcharging a phone does not even make it hot or anything like that. Unless you start using it but it's my case
I recommend buying QC 2.0 charger.

Be sure the cable you are using supports quick charge 2.0 as well
Sent from my D5803 using Tapatalk