Most popular Xiaomi Power Bank is back!
Full aluminum body, dual USB, and a huge 16000mAh capacity.
$1 shipping for all Xiaomi products.
Description Says
6 month Xiaomi Official warranty, please keep the box with security code label for warranty
Xiaomi Mi Power Bank 16000mAh Dual USB Port $38.95 + $1 Shipping @ ShoppingSquare
80
ScoMosas on 28/01/2016 - 18:44 shoppingsquare.com.au (655 clicks)
Last edited 28/01/2016 - 19:43 by 1 other user
Last edited 28/01/2016 - 19:43 by 1 other user
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You probably bought a fake one
Yeah, mines been fine so far
You must have a dud. Borrowed my sister's unit on great ocean road trip. Charged my LG g3 3~4 times before recharge unit. Very fast charging phone but recharging the unit. Whole day. I recommend it!
FYI the 16000mAh is @ 3.75V, which is not what USB charges at. 10800mAh is the correct figure for 5.1V - really annoys me that Xiaomi still list the 3.75V figure most prominently.
Still, I've had one of these for a year - still works flawlessly.I have also found it to take ages to charge it's batteries (I found it to draw about 500mA max), but it's quick for charging other devices.
On the site it has output of 5.1V/3.6A for the listed 16000mah. Are you saying that is incorrect?
I'd rather see mAh ratings disappear all together.
Watt Hours would be more appropriate, and is meaningful regardless of volts/amps.For those unclear of what is being discussed or how this works i'll provide a BASIC explanation…
The power is stored in a bank of batteries with a nominal voltage of about 3.7V, and likely a capacity as stated of 16,000 mAh (16Ah)
This can be roughly worked out in watt hours by a simple formula, volt x amps (3.7 x 16 = 59.2 Wh)
The internal battery feeds a boost regulator that increase output voltage to 5.1v, and can deliver up to 3.6A
By working the formula backwards 59.2Wh divided by 5.1 volts we would only see about 11,608 mAh of charge current available for devices to be charged
Before anyone jumps to conclusions, there is NO power lost in these calculations; "power" is measured in Watts / Watt hours, no amps alone.
So the debate is should a power bank capacity be measured in 'Amp Hours' (Ah) of the banks total internal battery, OR total Ah of output.I say neither, they should use Watt hours instead.
(Math above for simplicity, no battery or regulator is 100% efficient)
Taking the argument to another level, why measuring the output Ah is as bad as internal battery Ah…
Once that 5.1v ?ma comes into the phone is is via a constant current / constant voltage controller reduced down from 5.1v to not more than about 4.2v, to charge a battery in a pone or similar that likely has a nominal battery voltage of 3.7v again, same as the batteries in the power bank that the bank manufacture provides the rating on!So in short, source power bank battery is typically a 3.7v Lithium Ion or similar, destination battery also likely to be a 3.7v LithiumIon or similar.
Forgetting losses the regulation processes between power bank battery and device being charged, maybe after all the manufacturer is correct to measure the Ah @ 3.7v ?
The only variables are the efficiency of the regulator in the power bank which the manufacture could account for the regulator in you device, which the manufacturer will not know.What a ramble.
TL;DR
Electronics theory says manufacturer is possibly right to use Ah of bank internal battery, but Wh would be better all round.
The conversion efficiency of the charging process both in power bank and device being charged/powered is of more concern.
Man this aussie dollar sucks, I recall buying one of these for $25
I don't feel confident buying products prefixed with "genuine", especially "100% genuine".
Makes me feel uneasy about all my other purchases that weren't prefixed with "genuine".
Now the word "genuine" looks weird to me. Genuine. ✅I thought it was ozbargain, not ozinstock
74% off Kappa
Whats the regular price?
Have one of the 5000mAh chargers and cannot recommend it enough - paid roughly $25 including delivery. If the 5000mAh one is anything to go off this thing would be a beast.
Description says $1 shipping for all Xiaomi products but the checkout page says $7.95 for the 10,000 mAh model.
Price also listed as $42.95
Click the link in deal… It still shows me $38.95 + $1
thanks that works.
So weird - http://www.shoppingsquare.com.au/p_417173_100_Genuine_XIAOMI… shows another price all together.
Anyone know a physical store that sells these?
I need one in a hurry, don't have time to wait for shipping…
Not in Australia. You can try mushtato. You can speak with the rep here. He might help you out with quick delivery.
Thanks
still showing $7.95 for shipping. clicked the link btw
I have one.
THis thing is unreliable. You fully charge it the night before, take it with you to the mountains, and it stops working after about 10 minutes.