SporaD8:
Make I add mine...
Basing your choice of phone on it battery capacity(ma), with the believe that it would lead to more working-hour could be misleading. Some phones CPU consume more powers hence their higher battery rating.
The best bet is to use the talk-time and idle-time parameters. This explain why a Nokia 3310 of 500ma battery capacity works 4days on end without charge whereas a smartphone of 3000ma battery capacity on work 34hrs before it next charge

eddyland:
Your phone charger might be a slow charger or a fast one. If you charge your phones with fast chargers, you will definitely enjoy charging phones in this epileptic power nation.

Now here is a simple visual physics experiment that you can do even now to know whether your phone charger is a slow or fast charger.

Pick up that your charger now and look at the output power ratings; if you see 5V----1A or like this 5V----1000mA or anything less than that 1000mAh, then you shoulgld immediately know that you have a slow phone charger. But if you see 5V----2A or in this format 5V----2000mA or more, then you have a fast phone charger.
Source: http://highteknology..com/2015/07/how-to-detect-fast-and-slow-smartphone.html

eddyland:
Your phone charger might be a slow charger or a fast one. If you charge your phones with fast chargers, you will definitely enjoy charging phones in this epileptic power nation.

Now here is a simple visual physics experiment that you can do even now to know whether your phone charger is a slow or fast charger.

Pick up that your charger now and look at the output power ratings; if you see 5V----1A or like this 5V----1000mA or anything less than that 1000mAh, then you shoulgld immediately know that you have a slow phone charger. But if you see 5V----2A or in this format 5V----2000mA or more, then you have a fast phone charger.
Source: http://highteknology..com/2015/07/how-to-detect-fast-and-slow-smartphone.html

eddyland:
u no know say many ppl detest maths? When u don start to d mention x/y here and dier and den com put division on top, u don wan begin create confusion be dat na..dat is why I said simple physics 4 everybody to understand... lol...bro, I got ur calculation fully. It even depends on so many other parameter not listed here, but we jst wana knw which is a fast charger or a slow one. But thanks 4 d addendum

DSuperWoman:
u try well well.are u speaking russian

pat077:
What is the battery rating?

eddyland:
most probably, the phone itself was built with a quick charge technology and not from the charger.....it was well detailed in the link above

greenhulk:


Fast enough, better than most average chargers and would charge any phone fast no matter how big the battery is.

But I still wanna see a charger that would beat my Samsung charger rated at 5.3V-- 2A

koyla:
Adding something small,,,,time taken for your charger to charge your battery depends on your charger and your battery capacity.
Assuming you have a battery capacity of 4000mAh.
charger x has 1000mA=1A
charger y has 2000mA=2A
to know the time taken for charger x/y to charge your 4000mAh full, divide the battery capacity by the charger output. The answer gives you the time to complete a full charge.
charger x will take approximately 4hours while charger y takes approximately 2hours to fully charge your 4000mAh battery.

eddyland:
Your phone charger might be a slow charger or a fast one. If you charge your phones with fast chargers, you will definitely enjoy charging phones in this epileptic power nation.

Now here is a simple visual physics experiment that you can do even now to know whether your phone charger is a slow or fast charger.

Pick up that your charger now and look at the output power ratings; if you see 5V----1A or like this 5V----1000mA or anything less than that 1000mAh, then you shoulgld immediately know that you have a slow phone charger. But if you see 5V----2A or in this format 5V----2000mA or more, then you have a fast phone charger.
Source: http://highteknology..com/2015/07/how-to-detect-fast-and-slow-smartphone.html

ademasta:

General Koyla stop decieving yourself... That's not all about the factors! Did you put in consideration ''when there is low voltage''? Will your phone still charge up at your calculated time?

koyla:
Adding something small,,,,time taken for your charger to charge your battery depends on your charger and your battery capacity.
Assuming you have a battery capacity of 4000mAh.
charger x has 1000mA=1A
charger y has 2000mA=2A
to know the time taken for charger x/y to charge your 4000mAh full, divide the battery capacity by the charger output. The answer gives you the time to complete a full charge.
charger x will take approximately 4hours while charger y takes approximately 2hours to fully charge your 4000mAh battery.

Pronmix:
Bros awesome stuff but you want to "difficulting" the whole issue :-)

koyla:
Sorry bros,explanation was based on examples of two chargers x and y.
where x and y makes the confusion, right?

powerfulsettingz:
check mine below

damatolnew:
Please what is the appropriate rating/capacity of adaptor charger to be use in charging a 30,000mah power bank?

koyla:

OK Captain ademasta, stop deceiving yourself... where in the post did you see "this is the only factor".
You are considering " low voltage ", what about " high voltage "? The scientists didn't use " low voltage " for this calculation. I hope you understand now.

SporaD8:

Lolz! I know how it sounds.
...but those are phones(tech) words it will be meaningless to a layman.
Mind to learn the codes?

SkinnyDude:
dont know what is wrong with this my itel 1503 battery... it doesnt last... discharges fastly... and i just bought it last two weeks...

eddyland:
Your phone charger might be a slow charger or a fast one. If you charge your phones with fast chargers, you will definitely enjoy charging phones in this epileptic power nation.

Now here is a simple visual physics experiment that you can do even now to know whether your phone charger is a slow or fast charger.

Pick up that your charger now and look at the output power ratings; if you see 5V----1A or like this 5V----1000mA or anything less than that 1000mAh, then you shoulgld immediately know that you have a slow phone charger. But if you see 5V----2A or in this format 5V----2000mA or more, then you have a fast phone charger.
Source: http://highteknology..com/2015/07/how-to-detect-fast-and-slow-smartphone.html

Burger01:
Mine is 5V----3.5A. No wonder my phone charges in 20 minutes

eddyland:
u no know say many ppl detest maths? When u don start to d mention x/y here and dier and den com put division on top, u don wan begin create confusion be dat na..dat is why I said simple physics 4 everybody to understand... lol...bro, I got ur calculation fully. It even depends on so many other parameter not listed here, but we jst wana knw which is a fast charger or a slow one. But thanks 4 d addendum

dexterinc2003:
I think d usb cable attached to the charger also matters.i have the nokia usb cable that charges so fast,no matter what type of charger or laptop i attach the phone to.Too bad they dont sell the nokia usb cables,they only come with some phones.