Software to test 3500 mah battery capacity? - EVO 4G Q&A, Help & Troubleshooting

I have a 3500 mah battery I bought from the dark side of the moon. It "looks" real and it will operate my phone, but is it REALLY 3500 mah?
Is there some sort of software that I can download that will tell me the battery's capacity?

Thinking about this.
The 1500 mah stock battery charges at a max rate of 650 ma's (even with a 1 amp charger) and takes roughly 2.3 hours to fully charge.
I suppose I could charge it from 50 to 60%, determine how long that takes and multiply by 10 to get the approximate charging time. I say approximate because EVO batteries take less and less juice as they approach 100% charge.
So anyway, once I have the approximate charging time I can multiple that by 650 and get the approximate mah of the battery:
So, if it the total charging time is 4.5 hours I would just multiple 4.5 x 650 and get 2950 mah as the capacity.
I'll try this and see if it works.

try batteryboss.org, i think he had ordered one from hong kong to test, the seidio only did 2810 mah when he tested it, I got one of the 3500's from the states but it is the same as the hong kong version lasts the same as seidio ... way better than the stock 1500, but your method should work as a rough estimate i think.

Did a quick first pass. It took about 13 minutes to charge 10%.
That's 13 x 10 = 130 / 60 = 2.16 x 650 ma = 1408
So, on first blush it would appear that my 3500 mah chinese battery is actually a 1500 mah battery stuck in a 3500 mah battery case.
Sucks, but on the other hand, I got 2 1500 mah batteries for $20 which isn't a bad deal. That being said, do I want to have a big heavy phone for a battery that is no better than my stock?
On the other hand, not being a stock EVO battery, this battery may actually be charging at a full amp. That being the base, I am closer to 2500 + which wouldn't be bad at all. Have to download a amperage testing program and see how many amps it is drawing while charging.
** They never tested the chinese battery at batteryboss.org

OK, installed Current Widget from the Market. It will log my average amperage during the test and we'll find out what's what. I think the answer will be that this chinese battery with 3500 mah written on it is really just a 1500 mah battery.

Well, based upon my Current Meter, the charging amperage is all over the place, mostly between 450 and 550 ma. If that is true, then my calculations change:
13 x 10 = 1300 / 60 = 2.1666 x 500 (avg) = 1083 mah.
Just keeps getting worse.

Omg? I hope that battery isn't from GorillaGadgets.com
Edited: I bought one last night, gonna arrive 10 days.

alekosy said:
Omg? I hope that battery isn't from GorillaGadgets.com
Edited: I bought one last night, gonna arrive 10 days.
Click to expand...
Click to collapse
Well, these tests I am running arent exactly accurate. However there is no way a true 3500 mah battery would charge 10% in 13 minutes. Not possible.

Ok, I have two of these 3500 mah batteries. I decided to sacrifice one to science since it was so cheap. I tore it apart and here is what I saw:
Instead of one battery, it looks like two batteries kind of jerry-rigged together. There seems to be connections on both batteries top and bottom. I have no idea if a true 3500 mah battery is supposed to be one solid cell, but these are not.
The batteries have a serial code on them: 044060A JK30
I traced these to a company in China by the name of: Dongguan Delon Power Co., Ltd. They do, in fact, make these batteries; however, there is NO MENTION anywhere on their webpage whatsoever of what the mah is for this particular battery.
In order for this to be a 3500 mah battery, these would have to be two 1750's. I seriously doubt they are. I'm calling BS.
Here are some pics:
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P.S., Lol, sorry for the dirty fingernails. Just got done mulching my garden out front

mitchellvii said:
Well, these tests I am running arent exactly accurate.
Click to expand...
Click to collapse
i was about to say the same thing. your best bet is to charge completely, then run it to zero while logging current. then you can import the log to a spreadsheet, and calculate the capacity from there. this wont be perfect, but it will eliminate a lot of variables, and give a fair comparison with stock battery.

Well, at this point the most interesting thing is that this is NOT one battery but two soldered together.
The odd thing is that on every site I checked that sells these, it does NOT list the mah, only the voltage. How the hell are people supposed to buy them if they dont know the mah?

first sorry about bumping such an old post but again i think someone may visit and not get good info so i will add some words,,
these lion batteries charge extremely fast initially only after reaching 90 percent their charging becomes hell slow,,
so to test a battery first take ur oem batter drain it until ur phne shuts offs,,
now put it on charge and after 10 minutes turn it on dont use it ,, just leaveit,, let it fully charge,, fully charge means when ur cell prompts charging completed. or done or 100 % done etc,, note all this time,,,from the time u put the attery till it became full,,
now look at ur charger for output current and multiply that with the amount of time in hours ,, e.g if it took 2.3 ( 2 hours approx 20 minutes) hours and ur charger current otput was 1 amp,, then the ans is 1 x 2.3 =2.3 AH,,, or 2300 mili amps,, now the charging process is not eficient ,, its 30 % loss so get 30 % of 2.3 and subtract it from 2300 mah,, that is ur rough capacity,,,
do same experiment for the high capacity 3500 mah battery as well,,
als weight is another factor which can alone tell u at least if the high capacity battery is having more capacity then current oem or not..
repeat that process...2 or 3 times get the mean u got some good figures,,,,
remember that batteries capacity is not accuratly advertised ,, it may be off by at least 5-10 % for good quality cells ,, poor cellls may be 50 % off from rated capacity,,in that case u can weight the batteries to get an idea,,,
so what r ur results ?
r those batteries still alive

Related

Batteries - 1620, 3200 and 4800 mAh real photos (tests soon)

I've made some pics of original and extended 3200 and 4800 mAh batteries (compared).
Separated in 3 posts (image limit).
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Original - 1620 mAh
Extended 3200 mAh
Extended - 4800 mAh
All batteries compared
Soon as I can will post some tests, thanks
Win_XP said:
Soon as I can will post some tests, thanks
Click to expand...
Click to collapse
Great Win_XP!!
Exelent comparative!
I think I`ll stick to original size
good info. thanks!
waiting for tests.very interesting
I'm not sure about the tests at the moment, but DO NOT BUY 4800 mAh battery for Uni, it's a crap! 3200 mah is the best of all batteries (perfect life about 4-5-6-7 days) .
4800 mAh life = original 1620 mAh battery life
Win_XP said:
I'm not sure about the tests at the moment, but DO NOT BUY 4800 mAh battery for Uni, it's a crap! 3200 mah is the best of all batteries (perfect life about 4-5-6-7 days) .
4800 mAh life = original 1620 mAh battery life
Click to expand...
Click to collapse
I bought 4800 & 3200 batteries two years ago and i totally agree with Win_xp conclusions.
3800mAh
I have this one http://www.expansys.de/p.aspx?i=139188 since November 2005 and it is still the best you can get as it is just one pice.
I've just bought a 3150mAh battery from SuperGPS.co.uk and ran a simple test. Playing a 352x240, 30fps Divx, at low brightness, I reckon I'll see over four hours - exactly what I wanted!
tailazoom said:
I bought 4800 & 3200 batteries two years ago and i totally agree with Win_xp conclusions.
Click to expand...
Click to collapse
I have all 3 batteries, too.....and Win_xp is absolutely right, the 4800mah is crap, compared to the 3200.
....guys, if you charge 4800 SLOWLY (10-15H) in uni through usb and not with the 3200 charger (or not with 3200charger+final 30% in uni, as I was doing before) you'll get much better result (not 3200, but similar....).
Probably you already know, but charging 4800mah batteries with the stand alone usb charger gives green light and stops charging as soon as they hit 3200mah.....
really? ive read on some other sites about the 4800 batts being good but it was up and down, my girlfriend ordered me one and its on its way and i was wondering what kind of battery life to expect and what is the right way to charge it, so this means that i can only charge it via usb? i just wanted a good high life battery as i have an old original 1600batt that wont last4 hrs at standby and 1 hour active, so how should i use it & charge it and out of who has this batt what kind of life should i expect?
6 houres of continuos use from full (100%) to flat (5%). Never charged on usb: i'll try tonight.
Where is a trusty site on USA to buy the original battery?
Thanks in advance
orb3000 said:
Where is a trusty site on USA to buy the original battery?
Thanks in advance
Click to expand...
Click to collapse
I can't tell you about USA site, but don't buy Uni battery from DealExtreme, I've got one that not works at all, be aware
Hello
I can get you original DYNA HTC 1620mAh battery for HTC Universal. The price is 18.95 USD with free shipping.
If you are interested, send me the payment to my paypal account: [email protected]
The battery will arrive your destination within a week, or maybe few days later because of the Holiday season...
Win_XP said:
I can't tell you about USA site, but don't buy Uni battery from DealExtreme, I've got one that not works at all, be aware
Click to expand...
Click to collapse
Thanks for the advice
I just bought from Duke Nukem the original 1620 battery
I´m waiting to recieve it
Cheers,
dianotea said:
I have all 3 batteries, too.....and Win_xp is absolutely right, the 4800mah is crap, compared to the 3200.
....guys, if you charge 4800 SLOWLY (10-15H) in uni through usb and not with the 3200 charger (or not with 3200charger+final 30% in uni, as I was doing before) you'll get much better result (not 3200, but similar....).
Probably you already know, but charging 4800mah batteries with the stand alone usb charger gives green light and stops charging as soon as they hit 3200mah.....
Click to expand...
Click to collapse
What is meant by this? I normally charge the 4800mah via USB with the battery in my qtek.
I have the same problem with the 4800mah battery; it does not contain 4800mah, that's for sure! So, I would like to know:
what is the best way to charge a 4800mah battery?
Bright.Light said:
What is meant by this? I normally charge the 4800mah via USB with the battery in my qtek.
I have the same problem with the 4800mah battery; it does not contain 4800mah, that's for sure! So, I would like to know:
what is the best way to charge a 4800mah battery?
Click to expand...
Click to collapse
Always the best way to charge a battery is using the power wall charger

Mugen Power batteries in early 2011?

According to a rep I emailed, Mugen Power is making extended life batteries for our battery eating HTC Glacier that should be released sometime early 2011. For those who don't know Mugen Power, they have a reputation for making extended life batteries for every popular smart phone on the market.
Typically they'll make 2 different batteries for each phone, one that aims to fit like a stock with an added 400 or so mah, the second tends to require a custom backing and can often be double the stock mah.
Honestly? I can't wait. ^.^
WakeArray said:
According to a rep I emailed, Mugen Power is CLAIMING TO MAKE extended life batteries for our battery eating HTC Glacier that should be released sometime early 2011. For those who don't know Mugen Power, they have a BAD reputation for making extended life batteries for every popular smart phone on the market.
Typically they'll make 2 different batteries for each phone, one that aims to fit like a stock with an added 400 FICTIONALLY or so mah, the second tends to require a custom backing and can often be LESS THAN double the stock mah.
Honestly? I can't wait. ^.^
Click to expand...
Click to collapse
Okay Fixed
http://batteryboss.org/
greenstuffs said:
Okay Fixed
http://batteryboss.org/
Click to expand...
Click to collapse
Fvckin Vultures
greenstuffs said:
Okay Fixed
Click to expand...
Click to collapse
In the tests I see Mugen did absolutely terrible. In my experience they *can* make good batteries, but have terrible Q.C. The 1st batt I received for my N900 only lasted about half an hour when fully charged. The second lasted over two days on a charge, when stock couldn't even last one.
They seem to be very much a "luck of the draw" kind of company.
posted this in the seido innocell thread as well:
dunno where i saw it (somewhere here on xda prolly N1 forum) but some guys put every aftermarket battery for MANY phones up against HTC's stock batteries the astounding results:
NO aftermarket battery from ANY mfg. has EVER beaten HTC's stock battery...
(this is referring to batteries that fit in stock battery enclosure)
I disagree fella, I myself can verify that Mugen power LiIon battery is superior comparing mAh to mAh against stock HTC batteries. I mean its not just BS they do have respected branch in the market when it comes to manufacturing batteries which is durable and long lasting which is tested by many. But for it to work you have to completely discharge it few times I normally do it for 2-3days before actual use for optical performance.
HyperNode said:
This SS is of Mugen Power 1300 mAh right after fully charged.
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HyperNode said:
Okay so this morning after I replaced the Mugen battery with stock battery I fully charged it and took this screenshot.
Click to expand...
Click to collapse
Now keep in mind the stock battery is 1230 mAh and the Mugen power stock size battery was 1300 mAh. So the only difference here was 70+ extra mAh yet after extended test and usage I can respectfully say I got 3-4hours extra with Mugen than the stock size which is alot when you compare the batteries and its only 70 mAh extra which is nothing.
Now keep in mind from those SS the TBattery 0.60 does not verify the actual full mAh as its preset to the max of stock battery which is bug in the program. At the beginning to me it did seem the stock battery was superior as time went on and after many full discharges, Mugen power battery come on top.
It's here
Mugen Power has the Extended battery with door listed on their website now....
ww.mugen-power-batteries.com/t-mobile/t-mobile-mytouch-4g.html
Hobbit1968 said:
Mugen Power has the Extended battery with door listed on their website now....
ww.mugen-power-batteries.com/t-mobile/t-mobile-mytouch-4g.html
Click to expand...
Click to collapse
I checked the site out but couldn't get a good picture up close to look at the battery and cover. Have you purchased this yet?
Sent from my HTC Glacier using XDA App
Both battery's are listed but aren't shipping till Feb. 18th. They could be manufacturing them. 1650mah is the normal sized one. I think I will get that one.
~~Tito~~ said:
Both battery's are listed but aren't shipping till Feb. 18th. They could be manufacturing them. 1650mah is the normal sized one. I think I will get that one.
Click to expand...
Click to collapse
I think I might also. Not sure about the extra bulk of the big one.
Sent from my HTC Glacier using XDA App
Wait for sometimes as 1650mAh is selling for $47 ATM which is a lot considering mAhs per dollar count, also they are out of stock. Trust me guy I am pro mugen fella as you can see my SS few post above, ill wait till it hits 30s.
Sent from my HTC Glacier

Anker 2700mah battery (yep, not 2500)

Just saw that Anker released a 2700mah version battery for the note, an extra 200mah ain't much but it's still a bit more... The price is also good, just ~10$
Ebay Link
updated label
Anyone have a link to site that'll ship internationally?
I can't seem to find anyone that ship this or the original 2500mAh Anker to South Africa
Awesome just ordered one!
please, update the weight when you receive it....
Ordered one from Amazon.com for less than the 2500.
Here`s 2X for $16.99 / £10.99, I add them to my watch list a week or two ago.
http://www.ebay.co.uk/itm/330697603014?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648
Tinderbox (UK) said:
Here`s 2X for $16.99 / £10.99, I add them to my watch list a week or two ago.
http://www.ebay.co.uk/itm/330697603014?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2648
Click to expand...
Click to collapse
Do they ship world wide? I cant find it on the website....
It does not look like it.
John.
"Do you offer international postage?
This seller doesn't offer international postage."
tyraelasd said:
Do they ship world wide? I cant find it on the website....
Click to expand...
Click to collapse
How is the battery performance?
And how long does the external charger take to charge a batt fully?
I just bought the Anker 2700mAh combo from a local dealer in Singapore. 2 batteries and charger at SGD40. Charging the battery at the moment... Cant wait to test the batteries!
Take the total average time your phone lasts until it dies
So if your phone lasts only 6 hours on average do this
60 * 6 = 360 minutes
Then do 2500(mah)/360(minutes) = 6.94(mah per min)
So the stock 2500 mah battery should last for 360 minutes
While the anker 2700 mah will last you 389.04 minutes
So for $10-13 dollars will get you an extra 30 minutes
Sent from my GT-N7000 using Tapatalk 2
sonkameja said:
Take the total average time your phone lasts until it dies
So if your phone lasts only 6 hours on average do this
60 * 6 = 360 minutes
Then do 2500(mah)/360(minutes) = 6.94(mah per min)
So the stock 2500 mah battery should last for 360 minutes
While the anker 2700 mah will last you 389.04 minutes
So for $10-13 dollars will get you an extra 30 minutes
Click to expand...
Click to collapse
No, for $10-13 you get a secondary battery which can potentially go 30 minutes more than the stock battery
So you will get, say 6 hours from the stock battery and 6.5hours for each anker battery (of which you get 2?)
So thats 6 + 6.5 + 6.5 = 19hours ! (19 Hours of usage, Not 19hours standby)
pretty awesome for $<15
azzledazzle said:
So you will get, say 6 hours from the stock battery and 6.5hours for each anker battery (of which you get 2?)
So thats 6 + 6.5 + 6.5 = 19hours ! (19 Hours of usage, Not 19hours standby)
pretty awesome for $<15
Click to expand...
Click to collapse
panyan said:
No, for $10-13 you get a secondary battery which can potentially go 30 minutes more than the stock battery
Click to expand...
Click to collapse
I'm in the camp of people who don't want to carry extra devices and constantly removing the back cover
It is not 19 hours of constant usage.
The oem gives me on average 6 hours in the day which also includes Standby.
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Someone Have the Ebay Link To get Anker 2700mAh in Italy?
Thanks
I have the Anker 2500mah and 2700 mah. Battery life for the 2700mah is similar to 2500mah and the interesting thing is that the 2700mah weighs 2 g lesser than both the Original and Anker 2500mah. Taht's disappointing costhey stopped selling the 2500mah and sold the 2700mah at a higher price.
I bought the dual pack with charger. I have been very happy with the battery life a bit better than stock, but now I have a working 3250 mah battery so I keep the Ankers as spare.
Frankly the price is not high considering the quality of the product.
Sent from the great Note
sudisk said:
I bought the dual pack with charger. I have been very happy with the battery life a bit better than stock, but now I have a working 3250 mah battery so I keep the Ankers as spare.
Click to expand...
Click to collapse
is that 3250 mah that gold stock size battery?
is it legit? does it actually provide 3250?
on the battery showdown or the 3250 review, they said it was a load of crap and the battery died after a short while or something.
sudisk said:
I bought the dual pack with charger. I have been very happy with the battery life a bit better than stock, but now I have a working 3250 mah battery so I keep the Ankers as spare.
Frankly the price is not high considering the quality of the product.
Sent from the great Note
Click to expand...
Click to collapse
well 2700mah pack costs more than the 2500mah pack with same performance. anyway they have increased the price again after my purchase, so for any new buyers I would recommend others maybe the gold battery.
The separators at the battery contact point has has broken for all my anker batteries and also the top edges seemed to have been cracked too. It is minor nonetheless.

Powerbank for Redmi 1s

Hello guys!Do you use any powerbank for your redmi 1s in emergency situations when you run out of battery and you don't have a power supply anywhere near?I bought one for my redmi 1s but it's only charging the phone for like 60-70% max and then it turns off,considering the powerbank has a capacity of 5600 mAh and should do at least 2 full charges.
Are you experiencing something similiar?
Is there something important about powerbanks that i missed?
Thanks!
Here's the link Click Me
I have the 10400mAh, it really works great.
I myself have charge my Redmi 1s twice and moto G (i.e 3 full charges) still some juice was remaining.
I guess the best thing is to let your Power Bank fully discharge and then continuously charge it fully. Then try again. I guess it should atleast give u 1 & half full charge (1 & 1/2).
But i dont have 5600mAh version so cant properly judge on it.
Thanks...
So you're saying that you charged 6000 mAh ( 2 x 2000 mAh redmi and 1 x 2000 mAh moto G ) out of a 10400 powerbank?that's not too good either.You should have left 2 full charges for your redmi 1s / moto g.And from my 5600 mAh powerbank I should be able to charge my redmi 1s at least 2 times ( full ) and remain with another 50% charge of my battery.Isn't it correct or I'm missing something ?
Btw you have Xioami 10400 mAh powerbank or another brand?I watched some review of xiaomi powerbank and the guy charged about 10000mAh out of it.Thanks for answer!
The Company ever state that it has 100% Efficiency ?
We always can't judge on Mah Values my friend !
SH3H1 said:
The Company ever state that it has 100% Efficiency ?
We always can't judge on Mah Values my friend !
Click to expand...
Click to collapse
I don't even know what company made it.It doesn't have a name.Anyway,I should have expected to not work very good for 11 $ .I'll do more cicles of discharge/full charge,maybe I'll get 1 or 2 full charges out of it.2 would be perfect
Marius Cristian said:
S
Btw you have Xioami 10400 mAh powerbank or another brand?I watched some review of xiaomi powerbank and the guy charged about 10000mAh out of it.Thanks for answer!
Click to expand...
Click to collapse
I have the 10400 mAh Xiaomi powerbank, and for me it works like a charm. I won't claim I can get five full charges out of it, but I can get more than three for sure.
fairyrobot said:
I have the 10400 mAh Xiaomi powerbank, and for me it works like a charm. I won't claim I can get five full charges out of it, but I can get more than three for sure.
Click to expand...
Click to collapse
3-4 charges is pretty good.I mean you can go camping in a weekend without worring about powersupply to charge your phone/other gadgets I'll give mine to someone to charge his samsung galaxy s3,maybe it's something wrong with redmi 1s compatibility.All the best
Mi Power Bank 10400 MAh
I m using Mi Power Bank with 10400mAh capacity.
I can charge my redmi 1s three times only and still it is left some power.
Powerbanks never operate at 100% efficiency. Actually no battery can achieve it, there will be some interference which will inhibit full capacity.
I read somewhere that the Mi Powerbank works usually at 80% efficiency. So actual might be around 4160 mAh (or is the math to be done in some other way?)
Taking an example, i had my Mi Powerbank fully charged in two different instances. Once the powerbank died in less than one full charge of my Redmi 1s. The next time i left it to charge for about 30 minutes more even when the LED indicated full charge. I could charge one full cycle and one upto 60%. In the second instance, the charge would have been 3200 mAh.
Now, you should also consider its self discharge. When batteries are left for a long time they lose some charge on their own. Plus in winter, batteries tend to discharge more quickly, since the chemical reaction inside goes slow and at one point the battery won't cope up with the demand.
The bottom line, numbers are not always the true value of the equipment. It depends on the environment around you.
You should also consider that the phone is ON when charging. It charges, but also uses power. So when you charge your phone, you use at least 3000 mAh. I own the 10400 version and, depending on whether the wifi is on, the data connection etc, it charges my phone 2-3 times.
Yea....but I get about 1500 mAh out of a 5600 mAh powerbank.So,still,it's not very good.I think I'll buy xiaomi one soon and will try to find another redmi 1s battery so I have a back-up battery .
Marius Cristian said:
Hello guys!Do you use any powerbank for your redmi 1s in emergency situations when you run out of battery and you don't have a power supply anywhere near?I bought one for my redmi 1s but it's only charging the phone for like 60-70% max and then it turns off,considering the powerbank has a capacity of 5600 mAh and should do at least 2 full charges.
Are you experiencing something similiar?
Is there something important about powerbanks that i missed?
Thanks!
Here's the link Click Me
Click to expand...
Click to collapse
Hey its not a mi power bank buy one it give 2 and half charge just like mine do
review of ambrane p202
i use this powerbank from ambrane it give me a battery capacity to 85 - 90%
when its full charge it nearly takes 4-5 hours to get full charged
Mi PowerBank
You should have bought a Mi PowerBank :/
i have a Mi PowerBank of 5400 mAH n i face no problems with it
sanyam.aswal said:
You should have bought a Mi PowerBank :/
i have a Mi PowerBank of 5400 mAH n i face no problems with it
Click to expand...
Click to collapse
Well,this was cheaper I think and it was easy to buy(the seller was 10 minutes away from my location).I paid for it about 11 $ ... When I'll have more money I'll buy one.However,I noticed that it really helps even if it doesn't charge my phone 100% .When I prepare to leave and realise I might run out of battery I take it and when my battery is close to empty I connect it and it helps me ... even if it gives me 30% is enough for passing trough the night.
i see
Marius Cristian said:
Well,this was cheaper I think and it was easy to buy(the seller was 10 minutes away from my location).I paid for it about 11 $ ... When I'll have more money I'll buy one.However,I noticed that it really helps even if it doesn't charge my phone 100% .When I prepare to leave and realise I might run out of battery I take it and when my battery is close to empty I connect it and it helps me ... even if it gives me 30% is enough for passing trough the night.
Click to expand...
Click to collapse
ok cool...my mi power bank gives me 2 full charges
with the xiaomi 5000 mAh power bank I can charge my redmi 1s twice.
http://www.aliexpress.com/item/New-...-mm-slim-External-Li-polymer/32251887052.html
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I have a pny 10400 mAh pb which can charge my redmi 1s four times full and some charge left.

[REVIEW] OnePlus One + Avantek 20000 mAh Battery = AWESOME

Fed up waiting to buy the official OnePlus external battery I got this from Amazon.
The first time I saw the box, before actually opening it, I thought : “Wow, this thing is too bulky !!!”.
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But after opening a very nice box, I was pleasantly surprised to see that the battery, it’s about the size of a laptop battery.
The Avantek 20000 mAh battery pack’s build is really impressive. Considering the high capacity and low price, it would be easy for one to assume that build quality is where Avantek would’ve cut corners, but that really isn’t the case.
The battery has a very nice gloss white finish, which really feels great in the hands. The whole unit looks very solid, premium and well built.
I have used the battery pack for a week almost every day. I’ve charged it overnight with the provided charger a week ago and have used it, as I already said for a week and the blue led indicator still shows I have 25% left of juice. I have used it to keep my charge on my phone (OnePlus One) and on my tablet (HP Touchpad). The power bank just works.
To use it, you only have to plug in a USB cable, one end to the power bank and the other to your phone/other device. Depending on how much juice is left in the power bank and the device that is to be charged, the power bank will start sending current to charge your connected 1 or 2 devices at the same time. I thought the battery will get warm while in use, but even with both my phone and my tablet connected the battery was still cold to the touch.
This 20000 mAh power bank costs less than £35, which I think it’s great value for money. For the price you’ll manage to keep your chosen device(s) powered for a week, and this is quite a feat, considering most devices don’t last a day.
Does anybody else have an Avantek 20000 mAh battery pack? How long have you been using it?
So how many times can you charge your OnePlus One with the power bank?
simple math
victor96 said:
So how many times can you charge your OnePlus One with the power bank?
Click to expand...
Click to collapse
OPO battery is 3100mah, powerbank holds 20000, so just divide the one by the other.
Did you know you can even type equations into google and it will solve them for you?
Try it for yourself:
20000 / 3100
pbergonzi said:
OPO battery is 3100mah, powerbank holds 20000, so just divide the one by the other.
Did you know you can even type equations into google and it will solve them for you?
Try it for yourself:
20000 / 3100
Click to expand...
Click to collapse
20000 / 3100 is the most ideal situation.
as i know, there will be energy consumption in the process of charging.
there should be a conversion rate.
I have used the power bank as I said to keep my OnePlus powered for a week, just plugged the phone when I was in the car or office . I didn't try charging from 0 though
Sent from my One using XDA Free mobile app
Is the Power bank actually 20000? Not much powerbanks that say they 20000 mAh, really are 20000 mAh. They are usually somewhere around 15000 or 16000 mAh.
Might get myself one of these.. I've been waiting for a while now for OnePlus to release their power pack, but it doesn't seem like that is coming for a while, so in the mean time I might get one of these. It also seems pretty decent for the price.
I just got a vinsic 20000mAh power bank! I love the build quality of that thing, solid metal construction and a nice %light .. Its massive tho.. But I don't care
Sent from my A0001
pbergonzi said:
OPO battery is 3100mah, powerbank holds 20000, so just divide the one by the other.
Did you know you can even type equations into google and it will solve them for you?
Try it for yourself:
20000 / 3100
Click to expand...
Click to collapse
smart circuit offers an energy conversion rate of 90% and prevents overcharging
Click to expand...
Click to collapse
so the charging times would be 20000 x 90% / 3100
Their reviewer calcuated the rough charging times for popular devices
iPhone 6 = 1,810 = 11 Recharges
iPhone6+ = 2,915 = 6 Recharges
Galaxy S5 = 2,800 = 6 Recharges
iPad Air 2 = 7,340 = 2 Recharges
Kindle Fire = 4400 = 4 Recharges
Click to expand...
Click to collapse
Price?
I'm using Xiaomi Powerbank
He said £35 I think..
It costs £35 in the UK, from Amazon. Just search for Avantek 20000 mAh
Sent from my One using XDA Free mobile app
punkthemonk said:
It costs £35 in the UK, from Amazon. Just search for Avantek 20000 mAh
Sent from my One using XDA Free mobile app
Click to expand...
Click to collapse
ready to take it for a try.
many many thanks for your review....

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