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 What is the powerbank?, Updated with Xiaomi Powerbank

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AMIR1981
post Jul 6 2014, 10:30 AM

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QUOTE(WhitE LighteR @ Jul 3 2014, 07:47 PM)
xiaomi 10400mAh = RM36
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Where to buy xiaomi 10400mah rm36? Is it original?
Info pls. hmm.gif
Lineage
post Jul 6 2014, 11:14 AM

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QUOTE(AMIR1981 @ Jul 6 2014, 10:30 AM)
Where to buy xiaomi 10400mah rm36? Is it original?
  Info pls.  hmm.gif
*
It's been in the market for so long and so hot selling..u dont know? shocking.gif shocking.gif

http://www.mi.com/my/mipowerbank/

https://www.facebook.com/XiaomiMalaysia <---- Update when they on sale.. nod.gif
6216
post Jul 6 2014, 11:40 AM

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I have not read the other pages, but the first page already can see the TS doing some great work which I will not have patience for. Thanks.
AMIR1981
post Jul 6 2014, 12:12 PM

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QUOTE(Lineage @ Jul 6 2014, 12:14 PM)
It's been in the market for so long and so hot selling..u dont know?  shocking.gif  shocking.gif

http://www.mi.com/my/mipowerbank/

https://www.facebook.com/XiaomiMalaysia  <---- Update when they on sale..  nod.gif
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Thank you bro.
icon_idea.gif
labtec
post Jul 6 2014, 05:06 PM

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if i were to replace my own laptop battery, do i just replace it, no flashing needed on the laptop battery chip?

kind of tempted to replace myself instead of buying a new one tongue.gif
WhitE LighteR
post Jul 6 2014, 09:04 PM

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QUOTE(AMIR1981 @ Jul 6 2014, 10:30 AM)
Where to buy xiaomi 10400mah rm36? Is it original?
  Info pls.  hmm.gif
*
Bro.. how can you dont know laugh.gif
knight
post Jul 7 2014, 06:42 PM

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TS. Good info and excellent test you have there. Thanks for the experiment you doing. Learnt some from you too.
mfared77
post Jul 7 2014, 08:38 PM

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where can i get english user manual for xiaomi 10.2kmah PB....?received is in chinese...
WhitE LighteR
post Jul 8 2014, 11:27 AM

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QUOTE(mfared77 @ Jul 7 2014, 08:38 PM)
where can i get english user manual for xiaomi 10.2kmah PB....?received is in chinese...
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there is nothing important to read on it. no worries.
asrin
post Jul 9 2014, 12:11 PM

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TS has test a power bank that can jump start a car?..does a power bank can do that?..a normal power bank can jump start a car?..
ikoukinz
post Jul 11 2014, 01:26 PM

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Hello Have you tested the Romoss Sense 4 10400mah?
Currently using this device. It charges my IP5s from 1% - 100% at least 4 to 5 times.
movanns
post Jul 12 2014, 08:55 AM

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love ur technical explanation. kudos!
anglee82
post Jul 12 2014, 12:38 PM

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nice reviews

didnt know mi powerbank soo powerfull. will look for 1 when more stock comes
joytest
post Jul 12 2014, 07:13 PM

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Hi all I want to share my teardown / disassembly of the Mi 10400mah Powerbank.

1. Slowly prise off the white plastic fascia on both ends. A small, sharp knife will do best with the least amount of chipping to the aluminium and plastic itself. Just be careful of the retention clips, but they are not clipped. Some small force will release them.

After the fascia is removed, unscrew 4 screws on each end.

Front fascia removed
Attached Image

Attached Image

Rear fascia removed
Attached Image


2. After the screws are removed, use something to prise out the rear stopper or plug. You may use the stickiness of the double-sided tape that remains on the plug to help in lifting it up using your fingers as a surface.

Rear stopper removed
Attached Image

Attached Image

3. After the rear stopper is removed, you may gently push the entire assembly from the rear towards the front.

Attached Image

Attached Image


4. Closeup of the board.

Attached Image

Attached Image

UPDATE: added closeups of the board. There is an oddly named chip on the lower right below the VDD text. tongue.gif

Very nice board, and even has a thermocouple for heat control. VERY NICE touch.

To re-assemble, reverse the steps.

Hope this helps TS for investigation.

This post has been edited by joytest: Jul 13 2014, 12:18 AM
surefire v LED
post Jul 12 2014, 08:49 PM

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The cells and the board are really gooding.
joytest
post Jul 12 2014, 08:53 PM

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The cells read LGDBB41865.

Googling gives only LGABB41865.

I don't know if the 3rd letter indicates the cell quality. tongue.gif
Lineage
post Jul 12 2014, 11:55 PM

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QUOTE(joytest @ Jul 12 2014, 07:13 PM)
Hi all I want to share my teardown / disassembly of the Mi 10400mah Powerbank.

1. Slowly prise off the white plastic fascia on both ends. A small, sharp knife will do best with the least amount of chipping to the aluminium and plastic itself. Just be careful of the retention clips, but they are not clipped. Some small force will release them.

After the fascia is removed, unscrew 4 screws on each end.

Front fascia removed
Attached Image

Attached Image

Rear fascia removed
Attached Image
2. After the screws are removed, use something to prise out the rear stopper or plug. You may use the stickiness of the double-sided tape that remains on the plug to help in lifting it up using your fingers as a surface.

Rear stopper removed
Attached Image

Attached Image

3. After the rear stopper is removed, you may gently push the entire assembly from the rear towards the front.

Attached Image

Attached Image

Very nice board, and even has a thermocouple for heat control. VERY NICE touch.

To re-assemble, reverse the steps.

Hope this helps TS for investigation.
*
QUOTE(surefire v LED @ Jul 12 2014, 08:49 PM)
The cells and the board are really gooding.
*
How to know the board and the cell is good?
surefire v LED
post Jul 13 2014, 12:01 AM

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QUOTE(Lineage @ Jul 12 2014, 11:55 PM)
How to know the board and the cell is good?
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from the manufacturer.
joytest
post Jul 13 2014, 12:12 AM

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QUOTE(Lineage @ Jul 12 2014, 11:55 PM)
How to know the board and the cell is good?
*
I can't say much about cell quality but the board is top notch multilayer machine laid soldered components. Should be at least 2 layers. TS may have some more informed comments since he is in the industry.

One of the other powerbanks I've opened has got very sparse component layout and simple circuitry.

I am updating the post with shots of the chips on both sides.
SUSnordingh
post Jul 17 2014, 07:22 PM

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QUOTE(joytest @ Jul 12 2014, 07:13 PM)
1. Slowly prise off the white plastic fascia on both ends. A small, sharp knife will do best with the least amount of chipping to the aluminium and plastic itself. Just be careful of the retention clips, but they are not clipped. Some small force will release them.
*
better use guitar picks.

QUOTE(joytest @ Jul 12 2014, 08:53 PM)
The cells read LGDBB41865.

Googling gives only LGABB41865.

I don't know if the 3rd letter indicates the cell quality. tongue.gif
*
at least LGDBB41865 is from LG.

As I know D stand for High Drain
Maximum discharge current: 20A - 35A

suitable for e-cig vaping, powerbank

AB version only
Continuous Discharge Current : 3A
Max. Short Discharge Current : 6A

torch light, e-book

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