I have a couple of generic chargers I've been using with my note 2 for a couple of years. I realize these will charge slower than the samsung fast charge charger but is there any reason we can't use them or will they impact battery life (I would think they would increase battery life); i supect the answer is that they are fine but maybe battery technology has changed and there is some 'smarts' between charger and battery that would be damaged by these ?
No issue using your old charger except as you mentioned it won't be fast charging. I do not believe that the fast charging will hurt the battery. The fast charge only works for the first portion of the charge then the rate of charge slows to a trickle charge.
U can use any charger but i recommend to use any charger with 2amp output as it charges quick 40% in 30 mins insteas of 50%in 30 mins with original.
Original charger has two modes 9v and 5v it charges with 9v untill 50% and switches to 5v after that.
I think the unit i use is a sanyo 800ma 5 volt. I don't mind the slwo charge as long as it can't harm the battery. This is only used during travel and office; @ home I use the charger that came with the device.
You can definitely use another charger. Like said before it wont charge as fast. The adapter that comes with the phone will charge your phone at 9v instead of the normal 5v. If you use a different usb cable with the charger it will still charge at 9v. If you change the adapter, it will charge at the normal 5v whether you use the another usb cable or the one that came with the phone. The usb cable is just wires. The wall adapter is what determines how fast it will charge...
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I just bought a generic USB wall charger and it's taking much longer to charge than the htc charger that came with my EVO.
I'd like to determine the amps/ma the charger is actually putting out. I don't have a multi-meter, so I am hoping there is a hidden menu or app which will tell me what the phone sees.
Any suggestions?
You can download aLogcat and watch for the current usage, it should post it every so often. It should also say on the charger somewhere too, the stock wall charger is 1000mA
I tried this and found nothing showing charge rate, only the battery percent.
A standard usb wall charger should equal how long it takes to charge if you were plugged into you pc. If it is taking longer than that then you got a super el cheapo charger that puts out less than 500ma (milliamps).
I would be carefull too, cheap usb wall chargers are not know to output clean power and have killed devices. By overvolting/charging them.
I have been doing some testing lately with the htc charger and a pc and have come to the conclusion that the htc wall charger pushing 1 amp (1000ma) charges the battery too fast and doesnt allow for a "strong" charge. Meaning your battery will drain faster. The htc charger is, i believe not meant to be your everyday charger, only a boost charger to get you charged back up quickly.
This is common battery knowledge when it comes to charging... you can charge a battery too fast, and a slower; 500ma "trickle charge" is much cleaner and better for your battery.
Some maybe argue this, and thats ok, these are just my personal findings.
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I'm not seeing that info in the log either.
The charger had a weird range of 250-1000ma.
Yeah I think I'll invest in a better charger just to be safe.
Thank you both for your replies.
i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
so, my question is, why is it called "rapid" if it doesn't charge any faster?
and i suppose secondly, is there an actual microUSB charger that will charge the Thunderbolt faster?
they make one for the iphone that will fully charge it in 30 minutes so i know they are out there.
voxigenboy said:
i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
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Maybe you should try this one.
Install the battery monitor widget. Monitor the battery for about 20 minutes while charging. Tell us what the charge current is.
Does the Motorola charger include a cable? If not, you may just have a weak cable. I have seen cheap cables with wire so thin that the charging current is no better then charging off a weak USB port.
My experience has been that the phone typically recognizes car charges as USB charging and uses a different charging profile. My solution to that is use a wall charger through an inverter or a kernel that doesn't use radically different charging profiles for A/C and USB.
loonatik78 said:
My experience has been that the phone typically recognizes car charges as USB charging and uses a different charging profile. My solution to that is use a wall charger through an inverter or a kernel that doesn't use radically different charging profiles for A/C and USB.
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No need for that.
Cut a small piece of aluminum foil. Carefully place it where it shorts the two center conductors in the charger. Plug the USB cable into the charger. Make sure the foil stays in place over the two center conductors.
It is now a high rate charger. (assuming it can put out 1 amp.)
The limiting factor is typically the usb cable itself. Most usb cables can't support the 1amp that is provided to it. Since you used the original usb cable that came with the thunderbolt (that's been "shorted" as mentioned above" ) it will be just as fast as the moto car charger. the 1amp charging rate that the moto charger charges at (i have one) and that the original one charges at are already "rapid". if you plugged a normal usb cable from somewhere else into the other usb car charger, it'd be much much slower
squeakyl said:
The limiting factor is typically the usb cable itself. Most usb cables can't support the 1amp that is provided to it. Since you used the original usb cable that came with the thunderbolt (that's been "shorted" as mentioned above" ) it will be just as fast as the moto car charger. the 1amp charging rate that the moto charger charges at (i have one) and that the original one charges at are already "rapid". if you plugged a normal usb cable from somewhere else into the other usb car charger, it'd be much much slower
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The stock charger is what shorts the connections. The cable is NOT shorted on the two inner pins because they are the data connections used for connecting your phone to a computer.
doodlebro said:
The stock charger is what shorts the connections. The cable is NOT shorted on the two inner pins because they are the data connections used for connecting your phone to a computer.
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To meet the USB charging spec (which the TB uses), the two inner (data) contacts should be shorted with no more that 200 ohms.
But, the cable can also be an issue for rapid charging. The voltage drop for a 1A/5V source, across only .5 M of 28 gauge copper is ~220 mV. If you use a longer cable, there's more voltage drop. The TB likely current limits itself when the voltage drops below a certain threshold. Best to buy 24 gauge USB cables, if you can, especially if getting longer ones (monoprice has them).
voxigenboy said:
i bought that Motorola Rapid Car charger recent and have been using it about a week now. i've noticed that it doesn't seem to charge my Thunderbolt any faster then it did when i was using the Thunderbolt's USB cable with this USB car charger adapter.
so, my question is, why is it called "rapid" if it doesn't charge any faster?
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I think its a matter of rated output current. BUT on the other side, the phone must be capable of drawing/using that much current. If the adapter is rated for more current than the phone can charge, the "extra" current wont be supplied.
Initially, Moto's standard car chargers output 5V and up to 550ma max (just like a standard PC USB port) so they didn't charge phones all that fast. Moto then came out with chargers that had higher current output, so they were capable of charging the phones "faster" than the original car chargers (but on par with the home/travel/AC chargers) and called them "rapid car chargers"..
Today, the current output on the Moto SPN5400A car charger is 0-950mA, and I've seen it sometimes referred to as "Rapid Car charger."
But as far as I know, Moto no longer makes/sells the lower current car chargers, and their web site only shows one MicroUSB and one MiniUSB car charger for sale, both of which appear to be of the 0-950mA output variety.
voxigenboy said:
and i suppose secondly, is there an actual microUSB charger that will charge the Thunderbolt faster?
they make one for the iphone that will fully charge it in 30 minutes so i know they are out there.
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Just because someone makes such a charger for the iPhone, doesn't mean one must exist for the TB, or other phones, does it? I know the iPad uses a 2A charger. What happens if you connect an iPhone to that? will it charge faster? I guess that depends on if the iPhone is capable of drawing more than 1A to charge it.
I've not seen a "home" or AC charger that can charge the TB any faster than the Stock 1A charger. Does such a thing exist?
A proper car charger with 950mA to 1A output should charge the TB at almost exactly the same rate as the stock 1A wall/AC charger.
And btw, the Moto SPN5400A car charger DOES charge my TB in about the same amount of time that it takes me to charge my TB at home with the stock HTC charger. So while its not "rapid" compared to the stock home/travel/AC charger, its "rapid" compared to PC USB Port charging, or a plain lower current car charger.
KidJoe said:
I've not seen a "home" or AC charger that can charge the TB any faster than the Stock 1A charger. Does such a thing exist?
A proper car charger with 950mA to 1A output should charge the TB at almost exactly the same rate as the stock 1A wall/AC charger.
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I made a charger for my motorcycle. I use it as a GPS, screen on MAX, phone active with marginal signal. And I wanted to actually charge the battery at the same time. I did a lot of experimenting with the Thunderbolt. It would not exceed a pull of about 850ma from the supply, even at 5.5 volts. IMHO, you are wasting time looking for any charger over 1 amp.
Also, even with about 850ma in, not much over 500ma is getting to the battery. So a totally dead battery is still going to take between 2 and 3 hours to charge, no matter what charger you have. And twice that long if the charger looks like a PC USB port.
worwig said:
I made a charger for my motorcycle. I use it as a GPS, screen on MAX, phone active with marginal signal. And I wanted to actually charge the battery at the same time. I did a lot of experimenting with the Thunderbolt. It would not exceed a pull of about 850ma from the supply, even at 5.5 volts. IMHO, you are wasting time looking for any charger over 1 amp.
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I was asking because of the OP's statement about knowing "they must exist" because they are out there for the iPhone.
I'm perfectly happy with my Moto car charger, and how fast it charges my phones.
My S3 came with a 1Ah charger. My Fascinate came with a 700mAh charger. Is it safe to charge my S3 on a 2Ah charger?
Thanks!
Yes. The charging rate is actually limited by the phone so the battery will not be damaged.
I use 2.1 amp chargers at home and in my car. I don't think I have ever seen a charge rate faster than 1.3 amps. It is slightly faster than the stock charger, so at least that's something.
It won't make any difference at all. That's a very common misconception about charger amperage (amp, for short) ratings:
The charger is rated to provide "up to" a certain amperage (current), but doesn't push that amperage to the phone. Rather, the phone draws however much amperage it wants. A problem can exist if the phone pulls more amperage than the charger is rated to supply. (For example, pulling 1 amp from a netbook USB port can burn out the USB port.)
This is why the phone kernel, by default, only pulls <500 milliamps from an unrecognized charger... That's a "safe" amount for pretty much anything USB.
Chances are that the phone will only pull 450 to 500 milliamps from your 2 amp (2000 milliamp) charger unless you are using a custom kernel that pushes it higher (and then I don't think the charging circuitry in the in phone will ever pull more than 950 milliamps.)
Take care
Gary
i calcualted that my 2.1 car charger charges my phone 1% every two mins versus my stock charger at home that charges 1% every four mins so technically twiuce as fast
That's why it's recommended that you only use the charger that came with your phone. I know that's not always possible, but that's what's said.
Hi all,
I'm running into a strange issue with my Z1 Compact. I've just bought an Anker 40w 5-port USB charger, and when I connect it to my Z1c with the magnetic cable, it charges fine and everything is OK. However, if I connect it using a standard micro USB cable, it discharges at a rate of around 800ma instead of charging.
It's not just the Anker charger - I had a similar issue with an Arctic 4-port charger I was using previously. When I connect to the stock charger with micro USB, everything is fine and the phone charges normally. I'm running the latest build of SlimKat (it was happening with previous versions as well as on CyanogenMod) with unlocked bootloader.
Is the stock Sony charger different to regular USB chargers in terms of internal connections? I can't figure out why else this would be happening.
Stock charger has 1,5A and when you charge phone and at the same time you use it wont discharge. But if you have charger with max 1A or even less your phone would discharge while havy using
That's the thing though - the Arctic charger is rated for up to 2A per port, whilst the Anker is rated up to 2.4A per port, so it shouldn't be that.
Also, if I'm just using the phone normally whilst not plugged in, I might get a current drain of around 450mA from the battery. But if I plug it into one of these chargers over micro USB, the drain will be around 800mA to 1100mA. So it's not that the phone is using more current than the charger can provide; the charger is apparently actively discharging the phone.
I'm using Battery Monitor Widget Pro to check on all this. When I connect to the 3rd party chargers the mV and mAh flicker and jump about, but are steady over the magnetic cable or over micro USB on the OEM charger. Not sure what this signifies, if anything...
well i am using an anker charger and a good usb c cable that worked with almost all phones and fast charging before
i didnt use the original charger yet or cable .. i usually tend to keep them so if i needed to sell the phone later it will be easier .. also no place for extra chargers
the phone charged 10% in 20-30 minutes ?! pocophone used to charge like 50% in 30 minutes using same charger and cable
so what do you think !! i will try to use the orginal cable and charger to make sure phone is not faulty and will update you
Anker is not compatible with any version of Huawei fast charging protocols while Pocophone is.
Use Huawei's original supercharger.
i used the original charger and original cable and it was super charging
i use the original charger and 3rd party cable and it was regular charging
i used older huawei quick charger and any cable and it was quick charging
i used anker charger and any cable and it was regular charging
so apparently the charging process in huawei is very dependant on both charger and cable .. wished it was much easier than this
i usually use the anker charger for all devices
i also get a feeling that fast charging lesser the battery life over time .. so what is your opinion about that ?!
You need a cable, which support 5V. You can find some on Aliexpress but Anker don't have cable, which support 5V
What I saw is that the first few minutes are slow or regular below 20%. After, the charge is reslly fast. Closing to 100% slow down to.
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