Database Users

Overnight charging on AC

My G1 after I put him on charger goes till 100% and than act like it is not connected to any charger.
Like today it got to 100% and in the morning was on 98%.
I use AC wall charger for Motorola V3.
people tells me that is no problem, should be the same with miniUSB connected to PC.

I believe the default charing behavior of most rechargeable devices is
charge to 100% stop charging until the % is lower then a defined %
then charge to 100% once more

Do not use a moto V3 charger to charge your G1. It charges at a lower voltage and could effect your battery life. Use the one that came with the phone, another HTC charge or a blackberry charger. They all charge at the same voltage.

The only thing I see is the V3 charger has a lower amperage rating whereas the charger that came with the phone is capable of putting out 1A. It might be sending data at night and using more power than the V3 charger can put out.
First night I had my phone I had wifi and gps on with full screen brightness hooked up to the USB on my desktop PC and I was actually draining the battery while it was "charging" It's a power hungry phone when it wants to be. I would look into finding the factory charger.

speoples20 said:
Do not use a moto V3 charger to charge your G1. It charges at a lower voltage and could effect your battery life. Use the one that came with the phone, another HTC charge or a blackberry charger. They all charge at the same voltage.
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usb can only charge at most usually 5v. Any miniusb charger will work for it, it wont overcharge it, it will only undercharge it. "smart circuits" if you will, tell the phone to shut off at a full charge, and like previous posts, to stop charging it, and when it reaches said threshold (98 percent) it will charge it, basically maintaining charge, without overcharging alltogether.
P.S.
http://www.hardwarebook.info/Universal_Serial_Bus_(USB)

inpherno3 said:
. Any miniusb charger will work for it, it wont overcharge it, it will only undercharge it.
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Actually, I can tell you that the mini USB charger for my Toshiba G900 will *not* charge my G1, but will charge other devices I have.
Regards,
Dave

foxmeister said:
Actually, I can tell you that the mini USB charger for my Toshiba G900 will *not* charge my G1, but will charge other devices I have.
Regards,
Dave
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UNLESS it charges it lower than the voltage thats needed to maintain a charge ;-)

Warm Battery when charging with AC adapter

If this was mentioned before I'm sorry about bringing it up again but with my lack of knowledge on li-ion batteries I figured I'd check with you guys to make sure nothing is amiss here. When I was charging my n1 I noticed the back getting quite warm so I installed spare parts and saw that my battery temp was nearly 38 degrees Celsius.
Is this a bad thing or is it completely normal and I shouldn't think to much of it?
Again I'm sorry for the noob question.

Completely normal.

its normal, the wall charger charges at 1A, while USB charges at 500mA. If you want a faster charge wall charging is the way to go. I use USB because im not in a hurry and high temps are not good for any device (although im not saying you shouldnt use a wall charger, its just my personal preference).

It's normal, mine behaves the same way...

melterx12 said:
its normal, the wall charger charges at 1A, while USB charges at 500mA. If you want a faster charge wall charging is the way to go. I use USB because im not in a hurry and high temps are not good for any device (although im not saying you shouldnt use a wall charger, its just my personal preference).
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Actually, the battery is designed to be charged optimally at .98 amps. I recall someone saying that charging with the adapter is better for battery life, and charging with the USB cable should be done sparingly.

Cool that's good to hear, I just wanted to be a bit on the cautious side.
uansari1: so it's better for the battery to charge it with the power adapter? Offhand do you know what kind of drawbacks would occur if we were to use the usb cable instead? I'll try to do some research on it a bit later, if using the adapter means keeping the battery healthier I'd be all for it.

amlwaycooljr said:
Cool that's good to hear, I just wanted to be a bit on the cautious side.
uansari1: so it's better for the battery to charge it with the power adapter? Offhand do you know what kind of drawbacks would occur if we were to use the usb cable instead? I'll try to do some research on it a bit later, if using the adapter means keeping the battery healthier I'd be all for it.
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What we were told, and this was in the G1 forum, was that the battery life and capacity is maximized when using the charger, and over time if you only charge with the USB cable, the capacity can go down...meaning it loses calibration over time.
Don't worry about the battery getting warm... the phone is designed for it, and so is the battery.

Slightly better battery life.

So I realized that if I charge my phone using the USB ports on my laptop, the phones batter lasts much longer than if I charged it through the power outlet in the wall.
I didn't take any screenshots because I didn't think of it at the time, but through the laptop I got about 2 days and 14 hours with moderate use and I had 18% battery left.
Through the wall charger, I get about 18 hours with moderate use.
Can anyone else confirm?

Not sure, but i do feel that it charge slower on the USB port of my laptop. Maybe it have something to do with your theory.

Centranly!
USB port can give max 500mA but the wall charger can supply with 700mA (+40%!!!)

I have a charge-only cable that charges over my MBP's USB faster than any AC adapter I've tried. Charges last about the same regardless of power source though...
Sent from my MB860 using xda premium

emandt said:
Centranly!
USB port can give max 500mA but the wall charger can supply with 700mA (+40%!!!)
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USB 2.0 will provide up to 500mA while USB 3.0 can provide 800mA. Stock Atrix wall charger I have is 850mA.

How do you verify what mA you're using? Is there a good tool for that?

CaelanT said:
USB 2.0 will provide up to 500mA while USB 3.0 can provide 800mA. Stock Atrix wall charger I have is 850mA.
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IIRC, these are minimum specs for the standards. Could be wrong, but I believe that true output varies card to card/port to port.
Sent from my MB860 using xda premium

Plasmamuffins said:
So I realized that if I charge my phone using the USB ports on my laptop, the phones batter lasts much longer than if I charged it through the power outlet in the wall.
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I've heard this theory before, but didn't see noticeable difference on my phone to back this claim.

I do agree with OP that charging the phone connected to a laptop USB port would give longer battery life. I have noticed this on several occasions already. I also agree the charge process would be much slower. With my phone, with 5% charge or less, the battery icon randomly doesn't animate while being charged.
That a side, I'm also sure something is broken in Atrix design, be it hardware, battery, or both but something is not right. I can't even charge my phone from a power point with the supplied cable and the plug [UK].
I know Motorola won't admit neither fix this problem in Gingerbread but might do, quietly, in ICS. One other possibility I can think of is that the supplied plugs are the culprit.

Today i charged the phone from my laptop, and im not feeling any difference at all. Its discharging at my usual pace. :/
Sent from my MB860 using XDA

Furthermore to my previous post, I have finally found the opportunity to test my phone with a Blackberry charger and it started charging the phone from the power point. That means the Motorola UK plugs I have are broken.
I'm arranging to purchase a Blackberry charger now. Don't want waste my time and money with Motorola anymore.

charging modes

hello would like to know which is more convenient to charge the battery on or off the Atrix and benefits of each loading mode
Thx
Sent from my MB860 using Tapatalk

Atrix on and sleep/idle wont charge as fast as of because of things running CPU load.
Atrix with no wifi, and bt on, and normal sync. Its taking mv's per second vs off where its able to gain the same charge rate while off. ( bare minimum resources used)

if you want to know what is better for your phone, I think it's the same.
As Ciloteille said, if your phone is on, it will take more time to load, that all for me

It's better for battery to charge slowly using USB from PC. Also, for battery is better to reduce heat. For example if you charge and play games, processor and batter will produce more heat.

Zeljko1234 said:
It's better for battery to charge slowly using USB from PC. Also, for battery is better to reduce heat. For example if you charge and play games, processor and batter will produce more heat.
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Can u explain any on why its better to charge of a PC USB? Is the lower voltage producing less heat the reason or is the slower charge more efficient for another reason?
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Pbwizkid said:
Can u explain any on why its better to charge of a PC USB? Is the lower voltage producing less heat the reason or is the slower charge more efficient for another reason?
Sent from my MB860 using xda premium
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Basically for every battery is better to charge slowly because chemical process is less aggressive and in the same time produce less heat. PC USB can not provide enough current as charger.
I recommend to read this article How to Prolong Lithium-based Batteries .

PC USB is 5volt correct? Were as most wall charger or car charger is 12 volt?

Pbwizkid said:
PC USB is 5volt correct? Were as most wall charger or car charger is 12 volt?
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PC USB is 5V but charger is also about 5V. Difference is that PC USB 2.0 can provide 500mA and chargers more. For example Motorola charger provide 5,1V and 850mA. That's way charger charge battery faster. Some charger could provide 1000mA or more.

Zeljko1234 said:
PC USB is 5V but charger is also about 5V. Difference is that PC USB 2.0 can provide 500mA and chargers more. For example Motorola charger provide 5,1V and 850mA. That's way charger charge battery faster. Some charger could provide 1000mA or more.
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Ya that what i was just looking at. Basically what i am gathering from your info and that article is most chargers are designed to fill the battery fast, but what you reall want to do is a slow almost trickel charge like with a car battery were a low steady voltage and amperage is applied

Chargers are designed for fast charging just because users wish to charge battery faster is possible. They don't care about battery. Anyway modern battery will last longer than ordinary possession of the phone.

mmmmm and then I noticed that when you charge the battery with the phone off, it will download more slowly than when I load it on
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klos619 said:
mmmmm and then I noticed that when you charge the battery with the phone off, it will download more slowly than when I load it on
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you can charge the battery with the phone off? mine just turns itself on when it detects that it's plugged in to a power source.

ifalldownalot said:
you can charge the battery with the phone off? mine just turns itself on when it detects that it's plugged in to a power source.
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Mine does that if i turn the phone off, but if i let it runn all they way dead i can fully charg it and the phone never turns on until i do so

Help about charging

Hi. I have recently bought grand 2 and noticed battery getting hotter while charging. Which is not the case when i charge my phone with usb cable through pc. So i wanted to know whether it is good to charge through usb cable and pc or not?
I know this method takes time tho. Also does charging through this method makes the battery drain faster or not?

Is it because no one is available or no one is intrested..to give me an opinion...?

No difference between charging your phone by charger or USB cable using PC
but it is matter of time to full charge, max amps will takes by USB is about 370 mA
while charger gives you about 880 mA so charger is faster 2.5 time
And discharging doesn't depend on the charging method but it depends on the usage of your phone
Like playing games or not,WIFI on all time or not, and such so....
Finally it is better to charge your phone by original charger
Hopefully my opinion come in handy for you.

Thanks ?
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