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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
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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.
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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.
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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....
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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]
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.

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!

[Q] Can the Note use higher amperage chargers...

... like the charger for the iPad or Galaxy Tab 10.1?
Sent from my GT-N7000 using xda premium

If I use My note Charger for the Galaxy Y it charges the phones much faster, but thats all, no issues. So I presume higher amperage charger should just do well as long as the voltage is not too much.
I am guessing here and would like to see experts' opinion.

I don't claim to be any expert, but using a higher amp charger should be just fine. As long as the voltage is the same as the original charger, amperage doesn't really matter - the phone will still only "suck down" as much amperage as it is designed for. The voltage however needs to be the same, as a higher voltage (or potentially even a lower one) could possibly damage the device. With a higher amp rated charger, you will likely get faster charging times and due to the power specs of the USB standard, no additional risks to the device.
However, like I said I'm no expert...
Sent from my X10 using Tapatalk

^ I confirm what the person above said: the voltage matters. As long as it is the same you should be good to go.

BUT: The higher the charge rate the more you reduce the lifetime of the battery. But on the other hand a replacement does'nt cost that much...
PS: The Tab has a 7000mAh battery which can handle high loads easely. No comparison to the "tiny" 2500mAh of the Note...

I use the ipad charger with the note, it is rated at 2 amperes vs the 1 ampere for the note. I also use a blackberry charger at times which is rated at 700 mA and even that works perfectly.

As long as it is standard usb voltage at 5V, it will be fine.
The amperage denotes the MAXIMUM current it can deliver. It does not mean the device will use all of it, unless it requires all 1A, 2A or whatevever the max amperage the charger is rated at.

The kernel controls how much amperage it will use while charging, so you won't get faster charging with a higher amp charger. It will still only suck 1A.
Sent from my superior GT-N7000 using Tapatalk

Zamboney said:
The kernel controls how much amperage it will use while charging, so you won't get faster charging with a higher amp charger. It will still only suck 1A.
Sent from my superior GT-N7000 using Tapatalk
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I am not sure that is correct, I think physics controls it. The relationship is fixed, V=IR (Volts = Amps x Ohms). If the voltage is constant, and should be here at 5V, the maximum current will be determined by the resistance of the circuits charging the battery. I believe that has been measured at 1 Amp.
If the maximum current cannot be delivered by the charger (ie it is limited), there is just less current. If the charger can deliver more than one Amp, the circuits will not draw more than one amp, the voltage just will not 'push' any more current.
So the answer is you can pretty much use any amperage charger you like, as long as you make sure it is 5 Volts. More will damage the device and battery, less will not charge the battery.
I am not sure if, as suggested above, a higher amperage charger will shorten the life of the battery, but it sounds quite a reasonable thing to expect. I charge mine overnight with a 500mA charger, and use the stock 1000mA charger at my desk if I need a 'quick boost' before going out.

Zamboney said:
The kernel controls how much amperage it will use while charging, so you won't get faster charging with a higher amp charger. It will still only suck 1A.
Sent from my superior GT-N7000 using Tapatalk
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i doubt this. if your phone is off, do you mean to say the kernel controls the charging rate too? if i use a two amp external charger off phone, how will you argue your kernel theory? so no, kernel has nothing to do with how much juice your charger throws and how much the battery accepts. show me a scientific comparison wherein a tweaked kernel has prolonged the charging time from a 1amp charger by inhibiting flow of current on hardware side.

pls keep ur n10 charger in safe place.

Last nite, I played dead trigger until battery warning indicated 4%.
But I still keep playing and suddenly the screen went black.
I think the battery is totally dried out at that time. So I used the following
charger but failed to charge even after 10min. Here's the charger:
1. 3rd party 5V 3A charger,liteon brand.
2. old nokia 0.5A charger.
3. original samsung note2 charger.
all those 3 charger works normall on my n10 before last nite.
and suddenly i think maybe i can try out the original charger of n10.
And it works!
So i wonder if samsung or google put special charger on the adapter?
Before we know anything furthur.pls put ur n10 charger in safe place.

I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.

xxKamikazexx said:
I think most tablet chargers output a voltage of 12v. That might of kicked your battery back to life.
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I've confirm the voltage of my n10 adapter. Which printed "5V 2A".

It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.

wptski said:
It probably just needed a certain amount of minimum battery voltage to function and show charging. I doubt if the OEM power supply is special in any way. The charging circuit is really inside the N10.
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when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.

matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
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Click to collapse
Yeah, that is very strange indeed. It does draw in the 1800mA range from the battery during boot up. Are you using the same micro-USB cord all the time? It was reported that there are big differences in charging rate with different brands of cords.

This was covered in another thread recently.
Basicially the Samsung chargers have 2 pins shorted together to get full charging power of around 1.5A with the n10. Using other chargers will get you around 500ma output.
My guess is if you left your tablet on the "other" chargers overnight it would come on just fine. They simply don't output enough juice to power the tablet when the battery is that low.

matika said:
when i plug in the non-n10 charger, even after 10min,n10 is not able to boot. Only flaahing the battery charging symbol for 1 sec.
when i plug in the original charger, n10 can be boot instantly.
thats why i think it is very weird about the original charger. but other chargers still works well when n10 battery is NOT completely dried out.
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Click to collapse
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).

swany6mm said:
Had you left the other chargers on long enough, the tablet would have booted fine. I've run into this. I have an old(er) Samsung Tab 2 10.1 charger I use with my N10 (now along with a Pogo cable) and my N10 charges rapidly. That, coupled with the two wires shorted out in Samy's setup for the larger amp's.....also, in my job, I work with other chargers all the time and use them all the time across multi platforms, to include my N10, and it charges fine (albeit much more slowly).
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My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.

wptski said:
My charger(PS) for my Dell Streak 7 works just fine with the N10. This all makes sense except for the fact that the poster stated using a: 3rd party 5V 3A charger,liteon brand which didn't work.
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Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties

Not sure if it's been mentioned, but depending on the usage of the tablet, you might not be able to charge it quicker than the power usage. For me, if I'm playing a demanding game at 1.7Ghz and max brightness, neither USB or Pogo can charge the tablet, and battery still drops (slower, but still drops).

swany6mm said:
Should still work fine. Voltage is the same and the device will only draw as much amperage as needed. May have something to do with the circuitry in the charger? It may have been bad. As long as you don't supply more volts you are OK. More amps is also OK. Not enough amps will lead to burning up the charger unless the device is smart enough to realize its on a low amp charger (like the n10) and kick down so as not to over draw (ie - over drawing from the USB port which is a .5amp (500mAmp) or 1amp (1000mAmp)...someone correct me on the number here please)
The whole reason manufacturers tell you not to use someone else's charger is so you don't plug in, say, a 12 volt charger into a 5 volt item. That would pop something. That or some cheap charger poorly built could allow "dirty" power through causing problems. Both issues voiding warranties
Click to expand...
Click to collapse
Never seen anything burn up because of low amperage., power or watts generate heat and power(watts)=voltage x current.
Did you ever see a PS(charger is inside the N10) with a USB port that supplies anything but 5V? I haven't.

Current (amps) does the charging.
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..

ongre12 said:
No USB charger will provide anything more than 5.1 volts. If the charging block has a USB plug look at the rating. Amperage for smaller devices may be 1a or even less. Newer big smartphones have bigger batteries and need more current to charge. My old Thunderbolt charger is 1A, the charger Motorola provides for my Maxx HD is 1.5A, the Samsung charger for my Galaxy Tab 2 7.0 is a 2 amp charger, so is the charger for the iPad that some frickin' jerk ripped off from my house. The Xoom escaped that problem by having a separate charge plug, not using the USB system, it 12 volts at 1.5 amps. See the pattern? A tablet of any kind has an even bigger battery and needs even more current to charge. The reason the N10 may lose charge even when plugged in is that the charger can't deliver the current needed to run the device and charge the battery simultaneously.
As I see it, Samsung and Google need to supply a slightly higher amperage power block to compensate for the use/charge balance problem. Our solution would be to turn it off and charge the device every night or even leave it plugged in when not in use.
Another thing is the surface area for current transfer. The USB points are tiny, the POGO Pins, dedicated to charging would be able to handle more current because they have more surface area.
Any one who knows better may correct me, I just ordered an N10 today from Google so my information here is what I have read here and what I know from years in the electronics field..
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You don't need more current to charge a bigger battery, it's all about how long it will take to charge to full.
Some have stated that they've seen a 3A battery drain with certain games. The 9Ah battery would last approx. 3 hours which exceeds the max rate of the charging circuit and the PS. Even on a fully charged battery at that rate doesn't last that long.

AFAIK for any tablet to be able to draw 2A from any 5V charger (that can supply the needed amperage) the data pins (middle two pins from the use cable) have to be at 2.5V. Otherwise even if the charger is with correct specifications 5V/2A the tablet might not charge at all, or charge at a lower rate.
Sent from my Nexus 10 using Tapatalk HD

I forget the actual brand/model of the actual charging chip but if you poke around in the N10 files you can find it but it's specs are list as 2.5A max but N10's code limits it to 2.1A. This isn't the PS wall wart commonly called the "charger".

The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A

MartiniGM said:
The recommended charging current for any lithium ion or lithium polymer is 0.7C. What that actually means is a current 0.7 x max capacity in mAh. For most phones e.g. my Galaxy Note 2 with a capacity of 3100 mAh this means a current at about 1.7A.
The battery Nexus 10, on the other hand, could very well be charged at a whooping 6.3A current.
In USB Battery Charging Specification 1.2 the maximum current a USB port can supply for charging purposes can be as high as 5A.
With the Perseus kernel for Note 2 you can actually specify the max limit for how much current the phone will draw from any charger.
So in theory.. it should be possible to charge the Nexus 10 with a 5V 5-6,3A charger.. and that would probably be very quick!
For the record: I havn't seen many (any?) chargers with more that 2.3A
Click to expand...
Click to collapse
Sure the charging rate is way under what it should be but as they use larger and larger capacity cells the only solution is a removable cell to charge by other means.

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.
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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.

Moto g 2014 charges from PC using usb cable but not from charger

My Moto g 2014 charges from PC using usb cable but shows the status not charging when I use a wall charger. I can understand that it is not a hardware problem because it charges well from PC. Please help cause I cannot carry my laptop everywhere. I'm on stock lollipop 5.0.2

The charger is broken? C'mon..

Might also be that your Charger's Current his too high
I have noticed that with some chargers / phones that a phone wouldnt start charging with a too high amperege while others (old phones mostly if I recall rightly) would.
Check on your charger how much Ampere it gives to the cable. 1A = 1000mA should be normal. PC's usb ports give usally 500mA.
And yes the higher the amperege the faster you charge, wich can damage your battery if its too high
Edit:
But still I did some research on wall chargers and using cheap non [your brand] chargers is not always good.
Four stages of battery charging
There are four stages that occur when you charge your phone:
Stage 1: As you connect your phone, the battery’s voltage quickly increases.
Stage 2: The voltage peaks and current from the charger begins to decrease.
Stage 3: The battery is fully charged and the charger cuts the current off from the cellphone completely.
Stage 4: Standby mode, where only a top-up charge is supplied when the battery drops below a specified voltage.
It is critical that your charger “understands” these stages and is able to adapt accordingly.
Here is what you need to look out for:
The wall-charger is built to take normal current and adapt the current to a level that your phone needs. If you look on the charger itself, you will see a tiny label that contains the input levels, for example: "Input: 100-240v~".
This means that, if you live in a country where the normal household voltage is between 100 and 240 volts and you put this charger in the wall, it will not blow up. However, take a charger from the US that is rated only at 110v and stick it in a wall socket in South Africa at 220v, and you will trip the circuit breaker and bye-bye charger.
Next you need to look for the output voltage. Most cellphone batteries fully charge to around 4.2 volts and so the charger output must be greater than 4.2v. If the charger is only rated to output 3v, then that will not charge a 4.2v battery.
Finally we need to look at the output amperage, this indicates the maximum amount of current available from the charger for the phone to pull what it needs. If the phone requires 700mA to charge and you happen to use a charger with a 1A output, the phone will draw only up to the 700mA.
However, where your phone requires 700mA and your charger only supplies 500mA, many issues can occur, ranging from very slow charges to overheating and complete device failure.
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knockout41 said:
Might also be that your Charger's Current his too high
I have noticed that with some chargers / phones that a phone wouldnt start charging with a too high amperege while others (old phones mostly if I recall rightly) would.
Check on your charger how much Ampere it gives to the cable. 1A = 1000mA should be normal. PC's usb ports give usally 500mA.
And yes the higher the amperege the faster you charge, wich can damage your battery if its too high
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What?? Please stop talking bull-sht. If you have a charger, which can give you for example 10A max. that doesn't mean that every phone will be charged with 10A.
If your phone is charging the battery with max 1,5A then you can connect a 2A, 10A a 10000A ( LOL ) charger, but still the charging current will be only 1,5 A.

Try an app named Battery Charging Current from the play store. It is real time. Just to make a note, on our device it reads as 641,767 for an example. But its actually just telling you the current draw is 641mA.
That way you can see if plugging in your device to different chargers tickles it or not.
Also, make sure you are using quality cables. Like one you'd expect a flagship phone to ship with. Yes it does matter.
Sent from my Moto G 2014 using XDA Free mobile app

No
Sent from my Moto G 2014 using XDA Free mobile app