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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
UNLESS it charges it lower than the voltage thats needed to maintain a charge ;-)

Not charging when connected with PC

I recently bought new tab, it is getting charged normally when plugged in power socket. But when i plug it in laptop USB port or any PC port, it would not charge instead I can transfer data etc. I am using the original USB cable which came in box. Does any one has faced same issue?
Sent from my GT-P1000 using XDA App

charging
Samsung have engineered it so you have to even use their mains charger. Car chargers and wall chargers have to be Samsung tab brand. Not sure but there is talk of AVUSB charge cable being released. Pretty sure this has already been covered.

Turn off the screen and wifi and data network and it will charge very slowly over usb.
Sent from my SGH-T849 using XDA App

The fact of the matter is the tablet requires more/not the right amount of power that your USB port can deliver.
We always here all these theories about why.. but here is the simple and only reason why.
To keep the techinical stuff short and simple, Li-Poly and other batteries have a predetermined lifetime and one of the determining factors to how long they last is the rate of charge (charge rate) time and the exact amount of mHa capacity of the battery.
This is NOT a Samsung marketing scheme as it is exactly the same reason the iPad cannot be charged through USB.
I'll give you a quick example:
If you buy rechargable batteries, Ni-Mh that state they can be charged at 2500mHa (capacity/rate) and you charge them on a 15 minute charger that delivers the right amount of power (1.2 volts) and not the correct rate (lets say they are rated for 2500 and you use a charger thats rated for more) this causes the battery life to be deminished drasitcally.
If you charge the same 2500mha batteries with a lower rating charger, they will take a lot longer to charge completely since it is at a slow mHa, but also this slower charging will provide a longer battery life.
Therefore their charger (and this is the reason why you must use their charger or any charger with the same mHa rating) is made to provide the optimal amount of charge rate (mHa) giving you the best battery life vs charge time.
In conclusion the Tabs hardware will limit the rate of charge through USB in order to:
a) Not overload the power on your USB, given that all this varies according to each system configuration (although it should not! but reality is.. it does)
and
b) In order to not improperly charge your tab, reducing your battery life.
I know the technical parts are vaguely/poorly explained but I work with Li-Po and other types so this is the simplest way to explain all this without causing too much confusion.
Hope this made sense
Cheers

tj1984 said:
Samsung have engineered it so you have to even use their mains charger. Car chargers and wall chargers have to be Samsung tab brand. Not sure but there is talk of AVUSB charge cable being released. Pretty sure this has already been covered.
Click to expand...
Click to collapse
Not true.
Samsung is using standard chargers that are wired to identify themselves as high current chargers. A non Samsung charger / external battery will likely have the same wiring because this wiring is part of the usb-specification.
The Tab will even charge from your usb-port but only slowly and if you turn off the screen since usb-ports only have 500mA (the charger has 2A).
So all the Tab does is check for this high-power-wiring. If it detects it it shows you the charge-icon, if it doesn't it assumes a usb-connection to your computer and does not pretend to charge (even if it does).

Interesting! So then a generic car cig lighter accessory with a standard USB port on it should charge it as a high output conection, right?

I am able to charge my Tab using usb connection to my PC by turning the device off. Same with an Energizer XP8000 external battery. Leaving the device on will take a long time to charge or not at all if you are using it while charging.

Using different charger

Hey guys, can I use a htc charger to charge the s2, I understand the output is different between s2 charger and htc charger, will it pose a problem to the battery?

no problem.
Some info:
A charger does not push a certain current either, the phone uses as much as it wants as long as it is same or less than the current rating on the charger.
And if the charger provides less than the phone wants, then the phone adapts to this as well.

Oki, if let's say the htc charger out is 1.0mah, and the samsung charger is 0.7mah, is it still alright to use the htc charger?

bryant_16 said:
Oki, if let's say the htc charger out is 1.0mah, and the samsung charger is 0.7mah, is it still alright to use the htc charger?
Click to expand...
Click to collapse
Yes you can just look under your battery once removed on your serial label

Erm.. what to look for?
I only see 3.7V and 1650mAh.
That's all.

bryant_16 said:
Oki, if let's say the htc charger out is 1.0mah, and the samsung charger is 0.7mah, is it still alright to use the htc charger?
Click to expand...
Click to collapse
No problem.
I'm charging my phone with the following chargers: 1.2A Nokia charger, 1A Nokia charger, 0.7A Samsung charger, 0.55A noname car charger, and some USB cables providing 0.5A.
And I also understand the electrical theory regarding this so this is ok both in practice and theory

tjtj4444 said:
No problem.
I'm charging my phone with the following chargers: 1.2A Nokia charger, 1A Nokia charger, 0.7A Samsung charger, 0.55A noname car charger, and some USB cables providing 0.5A.
And I also understand the electrical theory regarding this so this is ok both in practice and theory
Click to expand...
Click to collapse
The higher the A rating, the faster the battery will charge, but this also will heat the battery more, reducing it's lifespan. Slower charges are annoying, but preferred for battery longevity.

Can I check what A rating is iphone charger? I'm planning to plug in microUsb to charge my s2 at work and leave the stock charger at home.
So want to check again, if 1A charger is suitable for S2?
Just to add on. When I'm charging my S2 using stock charger and playing grand prix story, the percentage of the battery actually decreased. Is it due to the 0.7A supplied by the stock charger?

bryant_16 said:
Can I check what A rating is iphone charger? I'm planning to plug in microUsb to charge my s2 at work and leave the stock charger at home.
So want to check again, if 1A charger is suitable for S2?
Just to add on. When I'm charging my S2 using stock charger and playing grand prix story, the percentage of the battery actually decreased. Is it due to the 0.7A supplied by the stock charger?
Click to expand...
Click to collapse
The phone only allows 650mA? or so into the battery, so anything above that is usually wasted. If you're playing graphically intensive or CPU intensive games most likely the charge rate can't match the drain rate, so slower charging or draining in your case.

S2 only allows 650mA? So even if I have a 1A charger, it won't be able to charge up fast too?

bryant_16 said:
S2 only allows 650mA? So even if I have a 1A charger, it won't be able to charge up fast too?
Click to expand...
Click to collapse
No it won't charge it faster.
Sent from my SK17i using xda premium

I use my gfs HTC charger, mines fine

You can use any charger but, from what I've heard, if the output is higher than what is recommended for your phone, the battery life will be reduced.

donalgodon said:
The higher the A rating, the faster the battery will charge, but this also will heat the battery more, reducing it's lifespan. Slower charges are annoying, but preferred for battery longevity.
Click to expand...
Click to collapse
This is not quite true.
The voltage of mini USB type chargers should always be 5volts. The current rating (amps) varies depending on the charger. Using a charger to charge a device to with a current rating lower than the current rating of the charger will make no difference. However using a charger to charge a device that requires a higher charging current could result it the device taking a longer time to charge and may not fully charge at all.
So most chargers will be fine to charge your phone. However if the charger current rating (amperes) is too low, you may find that if your using your phone while charging you could find the the battery will charge very slowly or even discharge (more likely when using something like navigation app). Both circumstances will make no difference to the health of the battery.

USB Type-C Charge

I don't know how to test the Type-C cables so I downloaded Ampere from the Google PlayStore.
I only use the official cable & wall charger that came with the phone.
Ampere states that it is charging the Nexus 6P at a rate of 1360mA-2230mA. Every time I charge it is charging at the 1300mA range. Is this normal?
Is something wrong with my phone or charger?

It will charge at a slower rate if the battery is not nearly dead. It only uses the full 3 amp (~2800-2900mAh) if the battery is very low. It slows as it becomes more full.

That makes SO much more sense. Thank you. When testing I did have 85% which is why I had a less charging rate

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Nokia 7 Plus can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

takes about half an hour or so as far as I can remember 8/10

Charges really fast, thanks to 18W charger. Although on cable connected to computer, very slow

yellow_eyed_demon said:
Charges really fast, thanks to 18W charger. Although on cable connected to computer, very slow
Click to expand...
Click to collapse
You compare 9v 2A(18w) vs 5v 0.5A(2.5W) PC usb? ...obviously it's slow with a pc charge
GintoSama said:
takes about half an hour or so as far as I can remember 8/10
Click to expand...
Click to collapse
From mathematical standpoint 30 mins for 0-100% is impossible with 18W charger, let me make it a bit clear
It has a 3.800mAh battery or 3.8Ah for short, which means if it had a 5v 3.8A charger it would take 1 hour if the charger and delivery system(cable+chips inside phone etc) were delivering 100% efficiency. Now 5v 3.8A is 19W charger. For half an hour we need 5v 7.6A or 38Watt.
According to Quick charge which is present in this phone it can be charged at 9v 2A or 18W, so even if the phone has 100% efficiency it would take a bit more than 1 hour to complete 0-100% but because each system can't deliver 100% efficiency calculate to 1hr and 1-20 mins give or take
P.S. half an hour, wish but ain't possible unless we have 9v 4.2A charging with 100% efficiency(or 5v 7.6A if you prefer) - Still going to get this phone soon(if price drops to my desire)

Just charged 25% to 100% took around 1 hour

I have here the test i made 100% to 11% took 6h34m SOT, charging from 11% to 49% took 25 minutes from 11% to 82% took 59 minutes, from 11% to 98% took 1h36m.
SOT: https://imgur.com/923LesQ
Charging:
11% to 49% : https://imgur.com/WpIcTnW : 25m
11% to 82% : https://imgur.com/NWOEl4C : 59m
11% to 98% : https://imgur.com/miH8pXA : 1h36m

Just got it yesterday...
Drained it fully so it died...
Then 0 to 53 % in 35 mins flat...
I think the last 10%( from 90 to 100} takes a big effort.

Just tested with LG V20's Fast Charger of 18W.
Fast charging works. confirmed.
But not with OnePlus 3T's Charger.
Will check the same with 5T's Charger and Update.

vishuxperia said:
Just tested with LG V20's Fast Charger of 18W.
Fast charging works. confirmed.
But not with OnePlus 3T's Charger.
Will check the same with 5T's Charger and Update.
Click to expand...
Click to collapse
Did you try charging it with the Oneplus Charger? If yes, could you give us the result in terms of charge time and heating? TIA

grubber24 said:
Did you try charging it with the Oneplus Charger? If yes, could you give us the result in terms of charge time and heating? TIA
Click to expand...
Click to collapse
Yes OnePlus 3T, 5T does not work.
Also I was charging N7+ from 18% via LG V20's Charger and it got overheated and started malfunctioning. But thankfully there was a circuit breaker and protection circuit in LG's Charger which saved it. Device is working fine too. Now I am using the nokia charger provided in the box as none are working.

vishuxperia said:
Yes OnePlus 3T, 5T does not work.
Also I was charging N7+ from 18% via LG V20's Charger and it got overheated and started malfunctioning. But thankfully there was a circuit breaker and protection circuit in LG's Charger which saved it. Device is working fine too. Now I am using the nokia charger provided in the box as none are working.
Click to expand...
Click to collapse
So that means if something happens to the current charger provided with the phone, we will have to buy a Nokia branded charger and cable or there would be issues. Hmm
Sent from my Nokia 7 plus using Tapatalk

I am usimg my one plus 5T's cable and it is working fine...

I'm using an old HTC charger and a anker quick charger and all work fine.

Well, my Nokia 7 Plus charges quite fast but it gets very hot while charging. Today it overheated and started beeping.
I'm using original Nokia charger that came with the phone.

alv3st3r said:
Well, my Nokia 7 Plus charges quite fast but it gets very hot while charging. Today it overheated and started beeping.
I'm using original Nokia charger that came with the phone.
Click to expand...
Click to collapse
I also meet this using oem cable. With nokia original cable is no issue.

I just got this device Thursday not a Dual SIM device
It charges fully in about 1hr and 30mins of charging adds quite a bit of power to the battery
if we use a PC it takes ages

is it safe to use fast charge daily?

Can we charge the device by a standard charger having 5v 1 amp rating with the USB type c cable plugged into it?

sameermehta2 said:
Can we charge the device by a standard charger having 5v 1 amp rating with the USB type c cable plugged into it?
Click to expand...
Click to collapse
Yes, i use mine from a tablet at 5v and 1.5A. You can use any charger if it is 5v or if it is turbopower o fastcharge.

I also use my old LG's charger. 5v @1.8A. Im not really that into charging speed. One thing i noticed is that on both chargers when reaching 100% it says charged but still charges for another 15minutes before the charging icon (flash) disappears from the screen. Has anyone else noticed this?