Hello everyone,
So I have been trying to find the answer to what I am wondering but to no avail. I know that when using a charger that did not come with the phone it needs to have to same voltage to not hurt the battery, but I am unsure of the amps. I know for normal powering of things the charger needs to supply the same amount of amps or higher so that the item can pull enough power from the charger. However, phones do not need a certain amps to be powered by the charger. So I want to know if I can use any changer that has 5 volts, but varying amps. This is because I read that if you use a charger with lower amps it is better for the battery as it is not charging as fast increasing the life span of the battery, is this true?
Example: I have a LG G2 which uses a charger with 5V and 1.8A , but I want to use my nexus wireless charger that is 5V and 1.2A
Thanks for any assistance!
Related
I've noticed that charging with 500mah charger, charges the battery MUCH slower than a 1000mah (1amp) charger, which charges really fast. I'll need to time it, but I'm thinking the 1000mah charger charges the stock battery in less than 2 hours, where as the 500mah charger takes many hours, I usually let it charge overnight.
My question is, is there any performance gain to slow charging vs fast charging? ie: slow charging giving a deeper charge, vs fast charging?
any opinions?
i use a 2amp charger i had already that fully charges the O3D in around half an hour/45 mins. get the same runtime whether i use that or the stock charger.
hefonthefjords said:
i use a 2amp charger i had already that fully charges the O3D in around half an hour/45 mins. get the same runtime whether i use that or the stock charger.
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Any chance of a link to this charger, I'd really like that sort of charging speed.
Pete
My guess would be anything that would charge an iPad... those require like 2.1amp, so that would be a 2amp usb charger.... I've seen 2.1amp home chargers, car chargers, etc... all because of the ipad I'm guessing.
Its not that simple. Any device that uses USB for charging can only pull 500ma, that's a universal agreement. To get around this each manufacturer uses a method of "informing" their device that it is connected to a charger that can supply more current (HTC shorts the data leads in the supplied charger I don't know what LG does). I have a 1amp car charger but it still only gives 500ma but the genuine LG charger gives an amp because the phone "knows" it can supply more.
I'm going to stick a test meter into my LG chargers over the holidays to see how the data leads are connected.
Pete
Sent from my LG-P920 using xda premium
The charger i have is a noname brand. I bought it from walmart for 6 quid. It also came with a 2amp car charger and a micro usb cable.
Micro usb cables are not standardised like that. Ive never heard of such a thing at all. As far as i know most phones will "fast charge" if they dont detect a data connection and dump as much current as they can into the battery so you can pretty much present them with whatever current you like and the charge time will just get faster. There is probably a hardware limit to that somewhere in the charge circuit but i dont know what the limit is. 2amps is the highest power usb charger ive seen but its not exactly aomething i regularly keep an eye out for.
Sent from my LG-P920 using xda premium
Slow charging is always better as this will allow the optimal number of battery cycles before the battery's capacity will start to degrade.
So if you only ever slow charge then your battery will have a longer life cycle.
I just bought the SBH 20 today and i wonder can i use other charger or power bank to charge this SBH 20?
I see the wall charger come with the SBH 20 with input 150mA and output of 850mA.
was thinking to use XPZ wall charger with input 250mA and output of 1500mA, will it damage my SBH 20 if i charge it with XPZ wall charger? don't feel like bring so many wall charger when travel.
oh, my power bank is 7800mAh with 1 output port 1A and another 1.5A. can i use the 1A to charge?
Thanks in advance.
andrew_wang916 said:
I just bought the SBH 20 today and i wonder can i use other charger or power bank to charge this SBH 20?
I see the wall charger come with the SBH 20 with input 150mA and output of 850mA.
was thinking to use XPZ wall charger with input 250mA and output of 1500mA, will it damage my SBH 20 if i charge it with XPZ wall charger? don't feel like bring so many wall charger when travel.
oh, my power bank is 7800mAh with 1 output port 1A and another 1.5A. can i use the 1A to charge?
Thanks in advance.
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You can allways use a charger with higher Amps (mA).
Only importent thing is you have 5V.
Using an output with higher Amps sometimes reduces charging time.
Mixermachine said:
You can allways use a charger with higher Amps (mA).
Only importent thing is you have 5V.
Using an output with higher Amps sometimes reduces charging time.
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i saw the power bank and other is 5.3V, does it matter?
how about using usb charging from laptop/desktop?
Sorry for being stupid, as I'm not IT expert.
andrew_wang916 said:
i saw the power bank and other is 5.3V, does it matter?
how about using usb charging from laptop/desktop?
Sorry for being stupid, as I'm not IT expert.
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If the device is properly designed 5.3V is no problem.
IIRC the stock wall charger is 1,5A (1500mA). It will theoretically charge the 2,3Ah battery in roughly 1h 32min.
The word "charger" is a bit misleading, because it actually is just a power supply. The actual charger is built into the phone. The phone will regulate the current (amperage) and charge the battery using the most suitable current. As long as the power supply is rated at 5V, it doesn't really matter if it's a 1,5A or a 5A power supply. The phone will take what it needs and nothing more. The power supply will not "force" any amperes into the phone.
Charging via USB from the computer will take longer, because USB ports on computers only give a maximum of 0,5A. The theoretical charging time will therefore be three times longer than with the stock wall charger. Repeated charging at such low currents is not recommended. It's best to use a power supply with enough current and let the phone do the rest.
In other words: You can use just about any Micro USB wall charger, as long as it's of sufficient amperage (not too low). I would also stay well clear of the cheapest chinese chargers. You never know what they will do.
Anyome using a 2A charger instead of a turbo charger?
Like a samsung 2A charger
Or a 2A power bank?
Any issues?
Because 1150 mah is too slow
I was also wondering this.I tried it with my 2,4a ipad charger once and it was charging twice as fast, but i dont know if this is good for the phone. Using the normal charger again to be sure.
With normal 1.2A charger, it takes almost 3+ hours for my phone to fully charge. I used my Galaxy Note 10 charger which is 2A and it got charged in 2 hours. I read it in the forums that even with 2A charger, we cant take the advantage of turbo charging as it will need a charger of 2.4A.
I dont know how 0.4A will make a difference but still, my knowledge is limited in this case and wouldnt want to comment on it.
The charger has to be Qualcomm QC 2.0 certified (that's a specification) to take advantage of the turbo charge mode. The amps put out by the charger is kind of secondary in this situation as the charger and phone both need to be "talking on the same page" i.e. QC 2.0
At that point (charger is QC 2.0) the special circuitry kicks in and goes into turbo mode. So its a little more involved than just throwing more amps at the phone. If you google Qualcomm QC 2.0 specification then it will give you a better idea of what it is all about.
Sent from my XT1563 using Tapatalk
Turbo charging steps up to 9v and 12v depending on what wattage the phone can handle.
I think our phones are 15w and the Style is 20w or so.
I can't get my phone to charge faster with a 2amp charger though, only my turbo charger.
I used digitech 2.4amp charge ans works like a charm superb....
It isn't causing any issues? Like battery degradation?
Sent from my XT1562 using Tapatalk
I've been using my Moto turbo charger every night for a couple weeks now and haven't noticed any issues. The phone doesn't seem to let the battery get over 35'C when its charging, so I don't imagine it'll damage the battery.
Think I may get a car charger soon, sometimes I forget to charge at night so it'd be cool to get a full charge on the drive in.
Battery will very likely not last as long when doing fast charging always compared to "normal" charges
Any fact to back that claim?
Im using a Belkin 2.1A charger, no problems whatsoever.
So what's conclusion is it safe to use 2a charger without doing damage to battery
prashu#1 said:
So what's conclusion is it safe to use 2a charger without doing damage to battery
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I'm using a 3a charger and it's fine
You can't harm a battery with a higher amperage output charger. The phone will only consume what it is able to. If the voltage was higher (excluding quick charge adapters) then yes that will do damage, but that's a strange situation as no charger should do that unless it's quick charge.
That being said, on hand I do have a feeling that quick charge can actually do long term damage if used a lot but on the other hand, it seems to limit the maximum temperature to around 38'C. Above 40'C can cause irreversible damage to the cell. I'm using a car charger now and when the phone is in use, it gets up to around 38 or 39 and it cuts back on the charging current.
Interesting article explaining Qualcomm, fast charge, turbo charge using all the same technique under different names. They all use the same Qualcomm technique.
http://www.androidpolice.com/2015/0...-need-to-know-about-charging-your-smartphone/
i recently bought the P900 (wifi version).
full charge will take around 5 hours, which in practice translates to 4 hours (i never get to 0% and charging from 90%\95% and on will be slowed down by the device anyway).
is there any way to speed up the charging?
like buying a 5.3V 3A charger. will the OEM cable be able to transfer the additional current?
could the device even take advantage from a 3A charger?
if so, can you recommend on any?
its important to me because i always use 100% brightness.
No. In the past mobile devices (mostly phones) shipped with cheap 500ma chargers and bumping up to higher amperage chargers would have an affect on charge time. Those days are gone as charging efficiency of chargers and cost to produce have lead to included chargers being optimized for charging times. Charging circuitry in the devices is going to take what it's rated to take and no more, so once a charger is plugged into it that's rated the same as the device is designed to take there's little else that can be done to speed up charging.
Bottom line - the charger that came with the tablet if it's the official one (i.e. if you bought new, not used and someone included the wrong one) is optimized to charge the tablet at the fastest rate. Based upon the numbers you noted your charge times are not excessive, the tablet is designed to take around 2A and it won't take 3A even if the charger is rated for it.
If you want faster charging you need to sell your tablet and get a Snapdragon variant instead (LTE tablets from various carriers) or start practicing better battery management to reduce how depleted your tablet gets. For me that means not running at highest brightness unless I really need it and topping off the battery whenever I can. When I get really low and I have a reasonably long period that I can charge I'll sometimes shut the tablet completely down rather than put it to sleep so that charging is accomplished with near zero load on the battery.
oh, bummer.
well, i guess i would have to learn how to live with that.
TY for your reply.
im planning on buying a 2 port charger so i wont have to carry so many stuff with me,
how much slower the device will charge with a 5.0V charger?
should i look for a 2 port 5.3v charger? a normal device wont have troubles with that?
It's not the voltage it's the amps. If you want to charge two devices simultaneously as quickly as possible the power supply needs to be rated to output the wattage necessary to provide the amperage the devices will draw for maximum charge rate.
My recommendation is to find something capable of over 20 watts (2A x 5V = 20watts). I'd buy this for future Qualcomm quick charge use.
https://www.anker.com/products/A2031111
Sent from my SM-P900 using Tapatalk
my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.
Yonany said:
my question was how much slower the note pro will charge with a 5.0v 2A charger as opposed to the OEM one which is 5.3v 2A.
and if there is any problem to use a 5.3v charger with a normal smartphone.
charging the note pro is more important to me than my other devices.
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Yes but you also noted that you want to buy a 2 port version and I'm saying that the voltage is only part of the equation. Unless you are already aware that you need one rated at 2A simultaneously (you didn't specify). I honestly never measured between the two, I do not worry about 5V vs 5.3V since the charging voltage of the lithium ion cells is under 5V anyway. AFAIK the current is more critical. Maybe someone else more knowledgeable in electrical engineering can chime in since I'm unsure how the charging circuit within the phone will step down the voltage from the charger to the battery. All I know is if one tops off regularly or charges overnight there's no night and day difference between the stock 5.3V charger and a 5V one so long as the aftermarket one is rated 2A or more.
Sent from my SM-P900 using Tapatalk
Will any chargers that supply higher volt / amp combinations charge faster than standard or does it need to support dash or warp charge? I don't necessarily need the warp charge but faster than my current op2 would be great.
Anyone? Does higher amperage equal faster charging or does it have to be warp charge compatible?
There's communication somewhere along the path that allows dash/warp charge to happen. A charger can supply a high enough amperage, but your phone may not be able to utilize it without communication from the charger/cable. I'm not exactly sure how/what the process is, but I know it's not as simple as using a high amperage charger.
jakegsxr11 said:
Anyone? Does higher amperage equal faster charging or does it have to be warp charge compatible?
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Any USB-C power delivery charger will do a rapid charge, just not Warp.