Develop Bugs

8000mAh portable battery on woot today 7/15 for $49.99

I know quite a few of us have been considering one of these portable power solutions for our EVO's and other devices. Not sure If I'm going to bite as I've already have 3 OEM Evo batteries and 2 Counterfeit's, and I'm struggling to find a situation that would arise that would require me to use all 5 batteries before I had access to power. Unless of course one of those Man vs Wild situation comes up and I'm left to wonder the desert for 10 days (chances of having a 4g or even a 2g signal are probably slim) with only my trusty EVO at my side!
Energizer Universal 8000mAh Portable Battery Pack w/ AC Wall Adapter
http://woot.com/

I just ordered this item. I'll review it in a few days.

linhpham2 said:
I just ordered this item. I'll review it in a few days.
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I didn't order it and now im kicking myself. Such a good deal...

Why in gods name would u need so many batteries!!!
*This was posted from my Evo 4G*

Has anybody gotten that double sized battery? I was considering that. Although I'm unsure if the added bulk would be acceptable.
Sent from my PC36100 using XDA App

I've been using the Energizer for a week now to charge my Evo and it's been working out great!

linhpham2 said:
I've been using the Energizer for a week now to charge my Evo and it's been working out great!
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awesome! how many times can you charge it? You should be able to charge it 5 times fully, if it's really an 8000mAh.

Heres a size comparison:

I've used this charger this past weekend. The bad thing about this charger is that you have to babysit it at the beginning of the charge cycle. The Evo won't charge if the battery is overheating, so after pressing the start button on Energizer, the Energizer will automatically turn itself off. But if you wait 5 mins to let the Evo's battery cool down a bit, you can restart the charging cycle. I didn't have this problem with AC or USB charging.

Back on sale - cheaper
Hello,
Thought I would bump this thread to bring attention to w00t.com, as they are selling the same item tonight for $39.99 + $5 s/h.
www dot woot dot com

Seriously dude get Cyanogenmod, turn off anything unneccessary and get task manager. I get 2 days of use. This is a mobile phone when you resort to these types of things it is pointless.
Unless you need it for portable charging station / emergency

The Energizer is back on sale today at Woot for $45 after shipping. I can testify that it works great. Shipping is 1 week processing + ground delivery.

amirborna said:
Seriously dude get Cyanogenmod, turn off anything unneccessary and get task manager. I get 2 days of use. This is a mobile phone when you resort to these types of things it is pointless.
Unless you need it for portable charging station / emergency
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I use an 8000mAh battery for hiking while running the gps, logging my tracks, listening to music etc. Perfect for trains and planes. Sure we might get 2 days out of normal use. I prefer a full battery after trips.

I ordered one of these today. I think it'll be great for geocaching or other long duration GPS uses.

2x Battery + charger 2000mah($13.00)

Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911

Highly doubtful 2000ma batteries, probably 1500ma batteries that are really 1300ma. Tutoit on ebay I have 2x1500ma batteries for a 9.98$ shipped with a charger, I would get that instead.

yeah, either get the 2 1500s and the charger for 11 50
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137
or the 1800 and the charger for 11 50
http://cgi.ebay.com/1800mAh-Battery...250661003311?pt=PDA_Accessories#ht_3119wt_911

jayv1717 said:
Gonna try them out...not sure what i'm gonna get but for 13 bucks worth a try
http://cgi.ebay.com/2x-2000mAh-Batt...330459330057?pt=PDA_Accessories#ht_4942wt_911
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I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?

Trident said:
I was just looking at this... seems like a great idea... the extra charger allows you to keep a second battery charged without using the EVO to do it. Even if it's really a lower rated battery... still a good deal.
Did you try it?
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I ordered it, but still waiting...those hong kong shipments take a while, i'll let you know as soon as I test it out
Sent from my Htc Evo 4g

I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.

so how are the batteries?

normally i would stay way from cheap Chinese crap on eBay, but with what i read here on the xda boards in regaurds t othe ok qualitybeing good enough that they might work out, so i ordered 2x1850 plus charger from ebay. i dont have time to do any real testing but i can say that:
1 not having to charge the battery from the phone is nice
2 i always have one on the charger, one in my pocket and one in the phone.
3 charging in the base seems to get me a better charge
4 i cant tell a difference between oem and knock offs, although you would think that the 1800's would last longer than the 1500oem but we know how that knock off crap goes. in my book if they are the same as oem, regardless as to what they claim and dont require a bigger back plate, then i guess that's good enough.

The 2 from tutoit or what ever the sellers name is work great last as long or longer then my stock battery. The charger also gives a better charge to the batteries then I get through my phone I'm talking extra hours when I charge with it.

ryohei47 said:
yeah, either get the 2 1500s and the charger for 11 50
[ul]hxxp://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=290444598681#ht_1730wt_1137[/url]
[/url]
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I got this and it's a good deal for the price.
The batteries aren't as good as oem. Probably last 75-80% as long.
The charger works well though and it's nice to have a couple extra batts laying around. I've only cycled them 4 or 5 times so I suppose the life could improve...time will tell.

rugedraw said:
I have a set of the 1500 mah batteries with the charger as was posted above, and I have no problem with them. I use my OEM battery most of the time, but sometimes it is handy to have some fully-charged back-ups. Honestly, I don't see much of a difference between what my OEM battery lasts and the knock-offs. For the price, you can't beat it.
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I Have a number of Minor issues with mine. Must of gotten a bad set.
1) USB port on the charger does not output enough juice to charge the phone (Accually Locks it up until I unplug it)
2) Charger seems hit or miss on recharging the Stock Battery. I've left it plugged in all night and come back to ~20% charge when I pop it in a number of times
3) Random Screen cut off when charging the Replacements IN the phone.
So I only charge the Ghetto batteries in the charger provided.
That being said, I STILL think it's a great deal and more than happy with my purchase. I have 2 spare batteries for my phone (Or the wifes CDMA Hero) and a way to charge one w/o having to leave my phone behind (I don't have to babysit my phone for a charge, If someone walks out of the poker room or party with my charger and battery it's no big deal) The 2 China batts. are just emergency tanks, The Red one gets put back in as soon as I get home.

Best Purchase at twice the price.
Don't wait press the BUY NOW!!!!
Loved the first set so much that I purchased a second set 2 weeks later. I keep 1 set at work and 1 set at home. I always carrying a fully charged battery in plastic bag in my pocket. I love the EVO but hate the battery life. The first month I owned the EVO was hell for me having to carry a power charger and cable everywhere. I hated having to plug my phone in every time I found a power outlet worried if I didn't I may find myself without a phone when I needed it or having to fight everyone at the airports for power outlets. Now when I'm low on juice, I just switch batteries.... BUY NOW you'll never regret it....

I purchased 2 3500 batteries with new backs on e-bay for $22 and change. They work great I can go for over a day with fairly heavy usage.
Only minor problem was that with the phone thicker my silicone case doesn't fit as good. Extra weight no problem.

Yeah one thing I have learned from buying these types of batteries and charger is that they don't like to charge the OEM batteries but charge the cheapo ones just fine. I've noticed it on alot of things not just phone batteries.

buy it for the charger
i bought a 2000mAh that turned out to be a 900mAh so i would only buy it for the charger.

I wouldn't recommend the 2 x 1500 batteries plus charters the 1500's seem like a 1300 or a little less I would say try get the 1800 one from eBay they have a lot of auctions for them so all you gotta do is be patient and try to get for cheap that's what I'm tryin to do

Just ordered one of the 1800mah.. will see how this works out!
Sent from my PC36100 using XDA App

QI Charger/Power Bank

I wanted to get QI charger w/ my Nexus and ended up getting one that included a 10,000 mAh powerbank for basically the same price.
I thought it was going to feel pretty cheap, but to my surprise it seems like its pretty good quality. For 40 bucks for both a QI and a power bank in one it's pretty kick arse! So be forewarned the "IN STOCK" status is BS it ships from China so don't expect within a week; I think I got mine in 3 weeks.
Also the instructions are horrendous, not sure who translated it but its actually comedy. I think says something like... "Use it if it bulges, smells or smokes." (instead of dont) and has FAQ's that have no questions. Literally every line in the instructions does not make sense.
So you can use this as a normal QI charger. As a powerbank you can use QI or plug it in through the USB ports (2) which makes more sense so you dont have 30% power loss as with QI. Powerbank is same shape as phone just about twice as thick and slightly larger width and length. Finished material is smooth so if you have a hard plastic case it may easily slide off or not become centered well enough to charge. I have a case no issues charging through the case. It does also get a full charge and it does not get my phone more than warm (same as wall charger).
http://www.amazon.com/gp/product/B00FS1NTMW/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1
*not much but you can save a little here:
forgot to mention you can Save 5% on Qi Wireless Charger Transmitter 10000mAh Mobile Power Bank(ASIN:B00FS1NTMW) when you purchase 1 or more Qi Standard Wireless Charging Receiver offered by Docooler. Enter code 3VYHPR39 at checkout.
Enter code 3VYHPR39

I'd be very interested in a test to see what the actual capacity of this is. Im always wary with a no name brand battery from China because they tend to always overstate their battery capacities. Wish there were some reviews, but I might give it a go anyway to test it out myself.

Looks interesting, but the lack of reviews make it sound dubious

loooller said:
Looks interesting, but the lack of reviews make it sound dubious
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Its weird how almost all of the qi power banks on amazon have no reviews. Seems like something everyone should have. Ridiculously useful. I am wondering why the one posted above is a good 25% cheaper than all the others of the same 10,000 mah capacity though.
Would absolutely love for the OP to test how many full charges of the Nexus 5 he could get from the device using USB and then Wireless charging, but that would probably take a while. Also OP, when you say that the case is smooth, is it smooth like the soft touch plastic on the back of the Nexus 5 or smooth like the shiny plastic on galaxy phones?

I'm waiting for RavPower Qi Wireless Charging Pad with a built-in 4800mAh battery coming back in stock. It seems like a great fit with my Nexus 5 as I checked a review from WPCentral.

Ordered one
Just ordered one. Will let you guys know when I get it, what it's like!

muyoso said:
Would absolutely love for the OP to test how many full charges of the Nexus 5 he could get from the device using USB and then Wireless charging, but that would probably take a while. Also OP, when you say that the case is smooth, is it smooth like the soft touch plastic on the back of the Nexus 5 or smooth like the shiny plastic on galaxy phones?
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no problem but may be a few days I'm getting over a day cycle on my nexus so far. I bought it mostly for the QI charger the bank was a bonus/ I will keep a log but try and get full cycles out of it to make it easier.
As far as the smoothness it is more like the shiny plastic on the galaxy phones. My phone has a plastic case it doesn't slide to much but I could see if it got bumped it would move. I had bought a screen protector someone posted that i don't like it's kind of rubbery or tacky feel i was thinking about taking it off and putting it on the charger so it was a little more "grippy".
Give me a few days I'll put up some stats for you

muyoso said:
I'd be very interested in a test to see what the actual capacity of this is. Im always wary with a no name brand battery from China because they tend to always overstate their battery capacities. Wish there were some reviews, but I might give it a go anyway to test it out myself.
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PS They ALL come from China lol

jeremykersh said:
PS They ALL come from China lol
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Oh I know, but the ones sold under the badge of Samsung or LG are usually dead on their mah capacity ratings. Not so much for random Chinese brands I havent heard of before.

Hindo2 said:
I'm waiting for RavPower Qi Wireless Charging Pad with a built-in 4800mAh battery coming back in stock. It seems like a great fit with my Nexus 5 as I checked a review from WPCentral.
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Amazons having a 50% off deal on battery packs if you buy the RAVpower qi charger. I just picked up the charger and a RAV 8400mAh pack for just over 60 bucks. I've been wanting both for a while now and this deal was just to good to pass up. I do a lot of backpacking and have been debating between a battery pack vs. a solar charger for some time now as well. The pack is actually lighter than any of the solar charges I was looking at. And for 18 bucks was a no brainer.

so here are some stats on this as a power bank not sure how much power loss over a few days is normal but after a full charge of the bank using the cable here is what I came up with:
night one charger started at 51% .49 of the full 2300 mAh nexus 5 battery = 1127 mAh
night two started at 18% .82 = 1886
night three started at 22% .78 = 1794
night four started at 28% .72 = 1656
night five started at 9% died at 32% = 529
______________________________________________________________________
TOTAL mAh= 6992

jeremykersh said:
so here are some stats on this as a power bank not sure how much power loss over a few days is normal but after a full charge of the bank using the cable here is what I came up with:
night one charger started at 51% .49 of the full 2300 mAh nexus 5 battery = 1127 mAh
night two started at 18% .82 = 1886
night three started at 22% .78 = 1794
night four started at 28% .72 = 1656
night five started at 9% died at 32% = 529
______________________________________________________________________
TOTAL mAh= 6992
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Interesting. And that is using the cable and not the Qi wireless charging? Its always said that Qi will have around a 30% loss in efficiency, which would make your numbers perfectly in line with what a 10,000 mah battery should do. Of course if you were using a cable it might just be that the low cost of the device translates to a less efficient transfer of energy. Still able to get roughly 3 full charges out of the power bank is pretty awesome.

muyoso said:
Interesting. And that is using the cable and not the Qi wireless charging? Its always said that Qi will have around a 30% loss in efficiency, which would make your numbers perfectly in line with what a 10,000 mah battery should do. Of course if you were using a cable it might just be that the low cost of the device translates to a less efficient transfer of energy. Still able to get roughly 3 full charges out of the power bank is pretty awesome.
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Yea thats through the cable, I know even turned off there is power loss on rechargeable batteries but I don't know what is normal power degradation equates to in a percentage. I agree though roughly 3 full charges may not be a full 10,000 mAh bank, but at the price even if it equates to a 7000 bank its not bad. Throw in the QI (which is mainly what I bought this for anyway) and this is pretty sweet deal :laugh:
I'll do it again and see what I come up with for round 2

Does it have an auto shut off function?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

mierkat09 said:
Does it have an auto shut off function?
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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it does shut off once it gets a full charge, using the cable as a powerbank. Never tried QI as a bank doesn't make sense so don't know this way.

Cheap Qi 8000 Mah Battery pack

Hi I found this wireless battery pack on amazon but there's no reviews yet. Since i'm new I cant post any links so i'll give you the info
Powebot Pb1080 qi enabled wireless charging pad...

Link: http://www.amazon.com/gp/aw/d/B00F6SQ7IK/ref=redir_mdp_mobile
Btw, there's probably no reviews because it isn't available
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

Btw, there's probably no reviews because it isn't available
Sent from my SAMSUNG-SGH-T989 using xda app-developers app[/QUOTE]
Well that link does not have it available yet but theres another seller that does at 25 dlls and only 13 left available

It seems like the other Qi charger it makes has at least 8 positive reviews. Not sure if that helps or not. http://www.amazon.com/PowerBot®-Com...iewpoints=1&sortBy=bySubmissionDateDescending

psychoace said:
It seems like the other Qi charger it makes has at least 8 positive reviews. Not sure if that helps or not. http://www.amazon.com/PowerBot®-Com...iewpoints=1&sortBy=bySubmissionDateDescending
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That's something different though. That's just a charger instead of a power bank
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

mierkat09 said:
That's something different though. That's just a charger instead of a power bank
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Yeah but sometimes looking at the quality of the other products a company produces can make people more comfortable buying something like this. Obviously it's not a review of the mentioned product but it's something to help those looking to take a dive on this product.

psychoace said:
Yeah but sometimes looking at the quality of the other products a company produces can make people more comfortable buying something like this. Obviously it's not a review of the mentioned product but it's something to help those looking to take a dive on this product.
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That's true, doesn't think of that. Here's the link for their available one: http://www.amazon.com/gp/aw/d/B00H1THX6W?vs=1
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

mierkat09 said:
That's true, doesn't think of that. Here's the link for their available one: http://www.amazon.com/gp/aw/d/B00H1THX6W?vs=1
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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Here is a better link since that one is a mobile one. http://www.amazon.com/PowerBot-Wire...d=1386120316&sr=8-1&keywords=PowerBot®+PB1080

Call me crazy but given the inefficient nature of Qi I'd at least want a larger (12000 or more) battery. I've got the anker slim 4500 and it's barely enough for 1 and a half charges (granted I use it while charging), I'd be interested how long this would last while powering the Qi electronics as well as the inefficient charging of the phone.
Sent from my Nexus 5 using xda app-developers app

compuw22c said:
Call me crazy but given the inefficient nature of Qi I'd at least want a larger (12000 or more) battery. I've got the anker slim 4500 and it's barely enough for 1 and a half charges (granted I use it while charging), I'd be interested how long this would last while powering the Qi electronics as well as the inefficient charging of the phone.
Sent from my Nexus 5 using xda app-developers app
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Well you could also use it as a wired power bank. And that's pretty good for the price
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

mierkat09 said:
Well you could also use it as a wired power bank. And that's pretty good for the price
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
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I wouldn't just say it's pretty good for the price. It's unbelievably low. Your average Qi charger costs $35 for really cheap models while external batteries of 8000 maH cost about $40 each.
However, I did purchase this and I will post again after I try it out and give you guys a review on it, seeing that there is only one amazon review so far.

Bump!
I have received the charger, and right off the bat I want to say something that I was extremely surprised with. Along with the cheap price, apparently the free-shipping was free 2-day shipping as well. I was rather shocked when I discovered it 2 days after I ordered it.
The device is rather portable, it is roughly twice the weight of an N5 and roughly the same dimensions. With a case on my phone ( I use a Spigen Ultra Hybrid), when I put it on it almost conforms perfectly except the charger is about a half inch longer.
The material is very glossy and easy to get fingerprints on, and looks *sort of* cheap, mainly due to the chrome rim binding it. However it feels solid pretty far, except for a power button rattle.
I have not kept track of the exact numbers, but so far this thing has satisfied me pretty well. This is my first Qi charger, so I am not aware on whether or not it's supposed to slightly warm up when charging, but it does. The charge rate is pretty decent, 1% every 2 minutes it seems like. The wired charging speeds obviously depend on whether or not you're using the 1A port or the 2.1A port, but the charging speeds for those are already cataloged so it is unnecessary for me to elaborate on it.
The LEDs are pretty bright but it is very hard to see them unless you're looking directly from above it. The battery does seem like it's 8000maH (before power effiency decreases, so the battery is actually 5600maH effectively).
I give it a 8/10 as a product. A 9/10 as a product considering the price and shipping. 100% Recommended

too bad I cant find it anymore on amazon, i was waiting for some review like this to pull the trigger and purchase it..

AgentSoul said:
Bump!
I have received the charger, and right off the bat I want to say something that I was extremely surprised with. Along with the cheap price, apparently the free-shipping was free 2-day shipping as well. I was rather shocked when I discovered it 2 days after I ordered it.
The device is rather portable, it is roughly twice the weight of an N5 and roughly the same dimensions. With a case on my phone ( I use a Spigen Ultra Hybrid), when I put it on it almost conforms perfectly except the charger is about a half inch longer.
The material is very glossy and easy to get fingerprints on, and looks *sort of* cheap, mainly due to the chrome rim binding it. However it feels solid pretty far, except for a power button rattle.
I have not kept track of the exact numbers, but so far this thing has satisfied me pretty well. This is my first Qi charger, so I am not aware on whether or not it's supposed to slightly warm up when charging, but it does. The charge rate is pretty decent, 1% every 2 minutes it seems like. The wired charging speeds obviously depend on whether or not you're using the 1A port or the 2.1A port, but the charging speeds for those are already cataloged so it is unnecessary for me to elaborate on it.
The LEDs are pretty bright but it is very hard to see them unless you're looking directly from above it. The battery does seem like it's 8000maH (before power effiency decreases, so the battery is actually 5600maH effectively).
I give it a 8/10 as a product. A 9/10 as a product considering the price and shipping. 100% Recommended
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How is the qi charging? How many times can you charge it using this on battery and how fast does it charge on qi? If you dont mind me askin.

I picked one up and like it very much! It's a tad longer than the Nexus 5 and about the same otherwise in dimensions. It's quite heavy. The charging works well and it's not picky about positioning. Only wish for improvement is that it's a smooth metallic surface all around so it's easy for the phone to slide. I might lay down some non-grip material over it to improve that.
It's a great deal since it's as cheap or cheaper as most qi chargers and as most battery packs but you get both in one.

11 25642898
Nocturnal86 said:
How is the qi charging? How many times can you charge it using this on battery and how fast does it charge on qi? If you dont mind me askin.
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Sorry for the bad wording previously, but it charges at a rate of about 1% per 2 minutes. I have not the time to conduct from full experiments but it seems that I was able to get about two full phone charges more or less out of it, which is pretty appropriate.
Another note, the LEDs are so weird. They're sort of like mini flash-lights. As I said, you can't really see them unless you're viewing them head on, but last night when I was charging the battery I could use the LED lights to look around my room. This was no problem though as it did not spread, and I simply flipped the battery over .

This seems like the exact same as another one that's been making the rounds, except it's advertised as 10000 mAh. Look up TX-5600 power bank. They sell a few different colors at dx.com, but I bought mine at Amazon (another brand) http://www.amazon.com/gp/product/B00FS1NTMW/. I wonder if it's just plain old deceptive advertising, or if they just use the same shell and put another battery in.
I gotta say, I'm very happy with mine though.

i just ordered one..hoping to get it friday.
Question:
If i use it mainly as a QI charger and leave it plugged in most of the time..will it degrade the battery?
i dont have a need to carry the external battery around all the time, i just needed a 2nd QI charger and since this was a 2 in 1 for $30 i bought it.
I see that theres an on/off button. IDK if that only functions as an on/off for the battery pack itself or if it also protects the battery from overcharge when it is switched off and used just as a qi charger.
thanks in advance

I ordered one of these. Looks decent and charges devices quickly using wired mode. However, Qi charging seems inefficient. After charging up the device overnight, it was drained after a single charge of my N5. Seems to only make sense to buy this if you use a wired charging when on the go and use the qi charging when you're plugged into AC. I usually use this device while plugged into AC on my nightstand so it suits my needs. If I'm in a rush to go out and have a phone or tablet that has little charge, I'll bring this device and charge on the road using a cable.
As for the online reviews, they are likely biased. The seller offers a free gift IF you post a "positive product experience". Doesn't seem like a moral practice to me. Anyways, since the product itself works as I described I completed a positive review. Getting the free gift has been like pulling teeth. The vendor/distributor is inflexible and comes up with unwritten statements that state, "our policy is..." long story here. This makes me a bit concerned if my unit needs warranty in the future. Definitely a consideration if you decide to buy one.

Thanks for the bump. Ordered for $30. What a deal.
Sent from my Nexus 5 using Tapatalk

[Q] Best experiences with external battery backups?

Just ordered a Zenfone 2 to replace my old S3. Love the phone, but hate the non-removable battery. Took the leap anyway because of the price. What are your best recommendations for battery backup units in the ~6000 mAh, ~12000 mAh, and ~20000+ mAh ranges? I figure I can snag a small backup that can fit in a pocket and a larger one I can leave in my car/bag/backpack. Which ones have you guys experienced that are long lasting and charge effectively? Ones that are resilient? Anything to the gimmicky seeming solar charging backup units from the like of ZeroLemon or another producer?

Aukey has a "Quick Charge 2.0" battery pack that should quick charge the phone way faster than any other option out there. Other than that I'd just watch the usual deal forums, etc. to find well reviewed models on sale.
My assumption has always been that tiny solar panels probably take forever to replenish your battery pack, but I can't say I have any firsthand experience.

beastofexmoor said:
Aukey has a "Quick Charge 2.0" battery pack that should quick charge the phone way faster than any other option out there. Other than that I'd just watch the usual deal forums, etc. to find well reviewed models on sale.
My assumption has always been that tiny solar panels probably take forever to replenish your battery pack, but I can't say I have any firsthand experience.
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The Aukey ones work well, I have 2 of them and they quick charge just fine and will give you ~2-2.5 charges depending on your usage while charging.

Pilz said:
The Aukey ones work well, I have 2 of them and they quick charge just fine and will give you ~2-2.5 charges depending on your usage while charging.
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They are surprisingly cheap! $30.00 on Amazon for a 10,000 mAh version. That looks like a good rec. Do you have any experience with ones in the range of 20-30k mAh?

http://www.amazon.com/Anker-13000mA...953&creativeASIN=B00BQ5KHJW&ascsubtag=WC17134
I would ONLY buy Anker brand. a lot of usb mobile batteries dont have power output to charge a phone that is also in use, and also have a heavy degradation after multiple uses. I was in a jam and bought a second battery at a CVS when i was out of town on business once and left my Anker brand at home, and after 3 uses it no longer could charge my phone faster than i was using it (talking on the phone).

tweak17emon said:
http://www.amazon.com/Anker-13000mA...953&creativeASIN=B00BQ5KHJW&ascsubtag=WC17134
I would ONLY buy Anker brand. a lot of usb mobile batteries dont have power output to charge a phone that is also in use, and also have a heavy degradation after multiple uses. I was in a jam and bought a second battery at a CVS when i was out of town on business once and left my Anker brand at home, and after 3 uses it no longer could charge my phone faster than i was using it (talking on the phone).
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Is the lifespan of Anker brand backups well known to be good? I'm thinking I'll buy two of the same unit so I can quickly swap them out of my bag when they die.

I'm getting the Mi Power Bank...the 10000 mah version can be had for $14 usd. Only downside is you have to wait for the "flash" sale. There will be one tonight at 9 central time(US).

Why don't you guys try the Asus Zenpower. I bought it with my phone for a package deal and looks very solid! Small too.. though its heavy.
http://forum.xda-developers.com/zenfone2/accessories/zenpower-asus-powerbank-t3121449

thedisturbedone said:
Why don't you guys try the Asus Zenpower. I bought it with my phone for a package deal and looks very solid! Small too.. though its heavy.
http://forum.xda-developers.com/zenfone2/accessories/zenpower-asus-powerbank-t3121449
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I looked at getting one....however Asus wanted to charge $14 for ground shipping....ordered the Mi Power bank earlier....and they charged $5 to ship. With stock in the US, there is no way Asus should be charging that much for ground....Express shouldn't cost that much! Also....I wanted the Mi Band lol

I ended up ordering two of the 13000 mAh and one 6400 mAh backup, all from Anker. They were all Amazon Prime so I got free fast shipping, and they offer their version of Quick Charge so it should be a solid option for me. I'll update with my experience after I've had them for a bit if anyone cares.

Sammaul said:
I looked at getting one....however Asus wanted to charge $14 for ground shipping....ordered the Mi Power bank earlier....and they charged $5 to ship. With stock in the US, there is no way Asus should be charging that much for ground....Express shouldn't cost that much! Also....I wanted the Mi Band lol
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Oh I am sorry to hear that man. Did you check eBay? Coz i got mine with the phone. If i deduct the phone price, the zenpower was only $10 plus shipping was free coz it was with the phone anyway. Mi is equally good. I am done with massive brands such as Samsung.. we mostly end up paying for their advertising, marketing and brand name.