Using power banks to charge your phone

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mr57444

Member
Nov 7, 2015
22
2
I'm using ANKER astro E4 and it's safe and fast , it's IQ technology determines the voltage automatically .
it's 13000 mAh and can full recharge my note 3 about three times
 

djhulk2

Senior Member
Nov 15, 2010
376
78
Ya have been using these power banks/cases all wrong. Yea the idea is when your battery gets low presd thr power button on your battery case and charge your phone. 20 mins to 1 hour later you may get full charge or almost and an drained case. Now what i do is when phone is 100% i turn on the battery case, the phone drains the case...5,200mAh which lasts me oh...5 hours 30 mins if i play a game on it nonstop...all day if not crazy with games like that. Problem sometimes when phone is under 100% like 97 it will charge to 100 and turn off. Ive been doing this for 2 years and nothong wqs wrong with the battery but i did buy an 4200, a bigger battery. So i never run out of power
 

iLsyyyyyyy

Member
Jun 20, 2017
17
0
Maybe you can look at this one :Luxtude 13400mah power bank http://amzn.to/2uf6JJH

IP67 Waterproof & Dustproof--It is the same level as iPhone 7, for ensuring to be used+ normally in any outdoor environment(jungles, rivers, Desert etc.).
Durable, Shockproof and Portable Design--It passed the professional drop test, which could even be used to protect yourself when confronted with danger. But it's lighter.
Top Class LG Battery--It could charge phones repeatedly with 13400 mAh capacity, such as iPhone7 5 times, iPhone6s 5.5 times and Huawei P9 3 times.
Smart Output/Input Quick Charge--It supports max 5V 2.4A output charging and charging 2 devices at the same time. And it also supports max 18W input charging, which could be fully charged in 4.5h fastest. Save your time maximally.
Compatible Well with 99% Smart Devices--Liberating you from various battery of devices when you go out.
 

spark001uk

Senior Member
Jan 14, 2010
705
154
Surrey, Untidy Kingdom
I would only ever buy a power bank from a battery manufacturer, such as GP, Ever Ready, Energizer, Duracell etc. because they know what they are doing. Failing that a reputable power bank specialist, like Anker or Zendure, and avoid cheap and nasty power banks, they are at risk of going bang!
 
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ShaDisNX255

Senior Member
Apr 3, 2014
3,106
2,086
Matamoros
Samsung Galaxy A52s 5G
I would only ever buy a power bank from a battery manufacturer, such as GP, Ever Ready, Energizer, Duracell etc. because they know what they are doing.
Other cheap brands of them are at risk of going one way - BANG!

I think that's a bit too skeptical. I've got an "Anker" brand power bank and it's been working great, charges the phone as fast as a wall charger would. And I use it almost daily.
 

Gamer4Life

Senior Member
Aug 1, 2014
363
54
Don't use power banks, it will f*ck up your battery and make it become swollen and lose it's capacity.
 

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    Hi all
    I'm an electronics engineer, and I'd like to point something out about using power banks / non-standard chargers etc that a lot of people seem to overlook, and to explain why your device may not be charging as fast as it should be. I know it looks long-winded, but bear with me! :)

    Basically, a mains/car/powerbank charger with a standard USB port has four pins. Two of these obviously carry the 5 volts and ground. The other two pins, called D+ and D-, which normally carry data on a PC, are utilised in dedicated chargers to 'tell' the device that you connect to it what sort of charger it is, and the maximum current it can supply. This is normally done by the charger setting a small voltage on each of the data pins.

    This is where the trouble starts. There is no fixed standard that every manufacturer goes by. Some use their own combination of voltages to 'talk' to their devices. Samsung and apple are examples who set funny standards. So, if for example you plug a recent Samsung phone - one which charges at 2A from its native charger - into a powerbank, if it doesn't get the correct 'talk' from the data pins, it will not charge at 2A, it'll fall back to something much less, usually 1A, or even lower. I personally have a GP powerbank, which can dish out 2.1A on one port, and 2.4A on the other. But - because the data pin voltages are wrong for my Samsung phone, it will only draw 1A, whichever port I put it in.

    Another thing some devices might be fussy about, is the voltage arriving at the device. For example, Samsung's newer 2A chargers put out slightly higher than 5V (I believe it's 5.3V off top of my head). Once again, a lot of power banks may not be this high, in fact some drop below 5V when charging some devices. This voltage drop also gets further affected with poor quality cables, as the flimsy wires in them lose voltage. This is probably in part a safety feature as it stops cables that aren't up to the job overheating with full current.

    Then there are the 'fast' chargers coming with some newer phones, which use a more complex 'talk' to bump the usual 5V up to 9V, or even 12V. But that's another story altogether!!

    For those of you tech savvy, here's some of the data pin voltages I found with a bit of digging around online. These are usually set on each data line by means of specific value resistors configured in a basic pull-up/pull-down voltage divider, and/or shorting the data pins to each other.

    D+ at 2.0V, D- at 2.0V = Low power, about 0.5A
    D+ at 2.0V, D- at 2.7V = Apple 1A (eg. iPhone charger)
    D+ at 2.7V, D- at 2.0V = Apple 2.1A (eg. iPad charger)
    D+ at 2.7V, D- at 2.7V = High power, 2.4A
    D+ shorted to D-, and both at 1.1V = Samsung 2A

    The only way I know of to get round this if your device isn't drawing the full current it should, is either change the resistors in the charger to suit your device (can be difficult, electronics expertise required), or make a little adaptor up from a male and a female USB connector, and interrupting the data pins to set the voltages with your own resistor setup (again, can be difficult unless you're electronics minded).
    Obviously with both of these measures you must be careful you don't inadvertently set it to tell the device to draw more than the charger is capable of supplying, and bear in mind it may only correct things for one particular device.

    By the way I accept no responsibility for damages, the data I've provided may not be gospel, don't blow yourself up, blah blah blah!

    Anyway I hope this helps you have a better understanding of things! ;)

    EDIT:
    Seems I went thhrough this a couple of years ago with the Samsung S4, I'd completely forgotten!
    http://xdaforums.com/showthread.php?t=2274321
    2
    anker 30000mah is really powerful device. I'm using it around 1 month, works great. :good:
    1
    Hi Guys,

    I’ve no experience of using Power Banks ever so here is my queries and doubts. As far as I know as much the mAh the power bank have, it can hold more current and charges other device for long. Is that correct?

    # My primary question is it safe to Power Bank to Charge your phone?
    # Also is it safe to use a higher mAh external charger like 10400mAh? The stock charger shows 2amp output.
    # Could it damage the battery for longer use? (I love my phone very much and I scare to use non branded after market stuffs)

    I found this product Xiaomi Brand Power Bank 10400MAH (please google it and see the description) and it has 10400 mAh, and looks like best for Note 3’s giant 3200mAh battery. So is it safe to go for this product?

    My purpose of using this, like once in every two full charge. Please advice, thanks
    1
    Unless it's big enough to fully charge it twice I don't see the point in getting one.