Original XIAOMI 5000mAh Ultra-Thin 9.9mm Power Bank for Mobile Phone US $10.00 (~AU $14.05) @Banggood
Don't forget cashback from Cashrewards
Referee gets $2 in coupons. Referrer gets 10% off (if referee spends over US$10)
This is a good deal. I have 2. I just bought another in Hong Kong this last time and paid more than this.
Great deal. Thank you. I found the 10000maH too heavy and too much for my use. So this is perfect!
Do you have any deal on quick charger and what is the shipping time for Sydney
last time took them 1 month to Sydney 2018
Had 10000mAh one and loved it. Good price for a slim one.
Can anyone recommend power bank around 5000mAh that ISN'T ultra-thin?
I need something smaller in the other 2 dimensions, something that's shorter/fatter, not thin.
Anyone used this powerbank with an iPhone 6/6S Plus? Just wondering how many charges you can get out of it - 1.5 charges?
barely 1 charge with iphone 6S plus
This would be suitable and it's probably better quality than the Xiaomi, but it's only 3350mah. Use code BWP2PB for 21% off.
Thanks,
I'll do some calculations and see if I can get by with less than 5000mAh…
By the way, the Xiaomi's 5000mah capacity is rated at 3.7v, so it will only supply 3700mah over USB (5v). This is the same for the above Blitzwolf which is actually only 2500mah at 5v.
Your phone battery is 3.7v as well, meaning comparing the two mAh amounts directly is more accurate when both are listed in this way.
Edit: for higher accuracy factor in effiencies. Xiaomis are around 85-90% efficient and phone charge controllers around 90%. To factor this in, subtract 20-25% from the mAh rating of the powerbank.
@dyl:
I'm not sure what your point is. The USB output is 5.1v and the voltage of the phone's battery is irrelevant. See here for more info.
To digress a bit, know that the 16,000mAh is the capacity at 3.75V; hence, the power bank has a total energy of 60,000mWh (milliwatt-hour) or 60Wh (watt-hour). But then, the output is done over 5.1V. At this voltage, the capacity is actually about 11,765mAh. And after factoring in the 90 to 93% conversion efficiency that Xiaomi claims (this refers more to the internal circuit board), we get a range (10,588 to 10,941mAh) that’s close to this 10,800mAh number. Note too that this is possible under a 1A current. Both the total output capacity and circuit conversion efficiency will be lower during 2.1A fast charging, due to more energy lost.
The above is why Xiaomi says the power bank is able to charge the 3,100mAh Redmi Note 4G smartphone 3.5 times (3,100mAh x 3.5 = 10,850mAh), instead of 5 times, because it’s simply not a case of 16,000mAh divided by 3,100mAh. Not using the Redmi Note? Other numbers include the ability to fully recharge the iPhone 6 about 5 times, and the iPad Mini 2.5 times. Of course, these are under ideal circumstances. Your mileage is likely going to vary once you factor in other variables like your mobile device’s internal circuitry and the battery’s health.
Power stored at 3.7V in powerbank > upped to 5v (well, 5.1) (80-93% efficiency) > transferred to phone (80-90% efficiency (with a good cable) > reduced down to charging voltage (80-90%+ efficiency)
In a perfect world (efficiency aside), a 10000mAh power bank will charge a 2500mAh phone 4 times. The difference we see in real-world situations are due to efficiency, NOT due to voltage differences. There's the efficiency of your powerbank (93% with Xiaomis, so -7%), the cable you're using (usually 80-90%, so -10-20%) and your phones internal charging controller (hard to tell, but I'd assume ~85%, so -15%). In total this is around 32-42%+ lost due to efficiency of upstepping/downstepping voltage and voltage loss over longer lengths of cables.
16000mAh - 32% = 10880mAh.
10880mAh / 3100mAh = 3.51 charges (rounded).
Makes sense?
Sorry if my explanations aren't the best… Overall calculating it as if your phones battery is 5v would kind of work (this results in calculating in 26% loss, then another 10% if you add in efficiency curves ontop of that amount) though it's not actually what's happening in the real world - it just simply gives similar figures.
@dyl:
USB doesn't supply 3.7v though, it provides 5.1v. Plug an in-line voltage reader into a USB port and connect your phone to it and see for yourself. As I said, the voltage of the battery is irrelevant.
@ComfortablyNumb:
Correct, USB ports are designed to be 5v, though are around 5.1V to compensate for SOME voltage loss with longer cables.
Now the 3.7V is important as upping 3.7v to 5v results in a slight loss in power (which is the efficiency rating Xiaomi proves, 90-93%). This means though you have 59.2wH of stored power (3.7x16Ah), once it's converted to 5v you're working with around 55wH (-7%). Once this 55wH leaves the powerbank, around 10% of the voltage is loss in the cable between the powerbank and your phone (due to voltage drops). You're now left with around 50wH entering your phone. This 50wH is dropped down to 3.7v (well, ~4.1v, charging voltage for a 3.7v battery). This process is also inefficient and results in a loss of around 15%. Once that's finished, you're left with around 42.5wH of power entering your phone battery.
Using the Xiaomi phone as an example:
3.1A * 3.7v = 11.5wH
42.5 / 11.5 = ~3.7 charges.
I'm not sure if this way of explaining things makes it simpler, though hopefully it does!
Overall the ~26% difference isn't anything to do with 3.7/5v (despite the fact that's around 26%), rather it's to do with the efficency of charging controllers inside phones/devices and natural powerloss over the length of the cable.
Xiaomi 5200mah
I presume that these are comparable with Xiaomi Redmi Note 3 pro phones?
Yep, you'll probably get 1 full charge out of it.
Great price and little unit. I have this and the 10k,and this can fit into the front or back jeans pocket with the phone charging without being too large or bulky.
The 10k unit is great but not practical when carrying in small pockets.
I have this and the 166000mAh
They're great but as I have a 6P, I wish they had USB Type C with quick charge.
These might be what you're looking for?
http://www.banggood.com/Original-Xiaomi-10000mAh-Bothway-QC2…
http://www.banggood.com/Xiaomi-ZMI-5000mAh-8_65mm-QC2_0-Quic…
Probably not, I suspect what he's after is the same thing I want for my 6P.
a Type C that supports 3amp charging (in both directions)
Unfortunately the 6P doesn't support the qualcomm QC standard. :-(
Bummer
Will this be compatible with a camera please?
Is the camera USB compatible?
cheaper here http://www.gearbest.com/mobile-power-bank/pp_145286.html plus 4% cashback via cashrewards.
1) Gearbest is banned from Ozbargain
2) If you check it out to your paypal, you will see that they will deduct more than the AU$13.58 and the amount that they will deduct with the conversion exchange rate via paypal will be greater than Banggood.
that's because they use USD by default and the displayed currency rate is for guide only.
The price listed on GearBest is $9.89 USD which is $0.11 cheaper than Banggood.
You should list it and submit it as a deal then
@Clear:Gearbest is banned | i didnt know this. So if someone posts a gearbest deal will it get taken down? :o
just noticed my local kmart (moonee ponds - melb) are selling the 10000mAh audiosonic brand for $12.
some previous commentary…
https://www.ozbargain.com.au/node/148281
https://www.youtube.com/watch?v=A2k_kJ2QDZ0
Is audiosonic good?
dont know. thats why i posted links. DYOR
Generic OEM/ODM power banks. Without opening one up we have no idea if they're using genuine LG, Panasonic or Samsung battery cells. Xiaomi use genuine.
Argh, I literally bought one of these of mushato last weekend for nearly $30. I thought I needed it this weekend, but now it will be raining I should have waited.
double down
You're so right! What as I thinking? DONE!
any deal for qc 2.0 or 3.0 powebank? Size 10k-20k maH
I'd love a QC power bank in the 5-6k range.
Thanks OP - need a smaller one. the 20000 unit is great for holidays but a pain for day to day use.
Was tempted to get one of these as the other half has one and they're a great size but they're selling 10000mah ones for AU$18.20(don't forget 4.8% cashback) that for only $4 and 50 grams heavier seems a great deal if anyone was after a larger one.
bulky though
Yeah, I wish I could hold one before I bought it. I think the shorter and fatter dimensions could come in handy though and I can always pinch the 5000mah for when I want to charge and use the phone at the same time.
bought one paid AU$14.00. hopefully this time will be quicker than the normal one. i dont have problem with them, just the shipping takes forever.
If you verify your account, you get 50 points and that is equivalent to AUD$0.70. So total for me was $13.30. Thanks OP.
It does not work for me. Price showing is $21.09-22.50 AUD.
Must be kidding me. The tracking shows:
016-06-07 08:30 Local courier sorting centre,Netherlands, Item being handed over to the local courier, tracking ended, estimated delivery : 6-10 days
2016-06-07 06:30 Amsterdam Airport,Netherlands, Flight landed to transit destination
2016-06-06 12:30 Chek Lap Kok International Airport, Hong Kong, Flight dispatched;transit destination: Netherlands;Flight #:KL888
2016-06-06 07:30 Chek Lap Kok International Airport, Hong Kong, Item being handed over to the airline.
2016-06-06 02:30 Flyt Express's sorting centre, Hong Kong, Item in transit.
2016-06-03 07:02 Flyt Express's sorting centre, Guangzhou, Item dispatched. PKG#:PKG02148023
2016-06-02 20:02 Flyt Express's sorting centre, Guangzhou, Item in transit
2016-06-02 19:02 Flyt Express's sorting centre, Guangzhou, Item received
2016-06-02 09:40 Customer, Customer's order information generated
WTF? Netherland??? I'm living in Australia……
Hey, how do you track it? Thanks.
There's a website called: www.17track.net. Just enter the Airmail package they provided. BTW, my powerbank has just arrived two days ago.
Thank you very much OP, I have the 10,400Mah and 10,000MAh amd the 10,000 is noticeably lighter and smaller. It gets more use as it's that much more portable. I will have to try this.
A$13.84 as of this morning for anyone using their 28 degrees credit card and switching the payment currency to USD9.99.