You seem to have a run of this bad luck

Means from 12k MaH i only get 9600k capacity from the anker powerbank?
How about the Yaobao 11k MAh powerbank in terms of the real capacity output?

your guy terryong isn't here anymore

My bad , the reseller u posted , he is TerryOngKS , same person but 2 different account



This post has been edited by Noobi3: Aug 2 2013, 11:57 AM

So recommended seller huh. Im dealing with him next with due to he still dont have ready stocks for that astro 3 2nd gen 12k MaH powerbank in singapore.

Good quality powerbanks can give around 70% to 80% capacity. The cheaper and imitation ones way below that.

Again no stock ? WTH Last week also the same thing , posted ready stock but when PM , no stock . wait for him to restock then

Oh ya , about your question on real capacity , joytest can explain to u in details , each battery cell is 2600mah i think and 12k should have 5 inside .... I forgot exactly so best let him explain as he " opened " up his Yaobao 13000mah to explore

This post has been edited by Noobi3: Aug 2 2013, 12:03 PM

See, from what I understand, after reading about the powerbank thread I linked in post 4, you can get a variance.

Anyway, if you take the first case :

(3.7/5) x 80% = 59.2%

Second case :

(4.2/5) x 80% = 67.2%

The reason for 4.2 is coz at full capacity, the battery is at 4.2V.


If you take 67.2 x 11200mAH, you get 7526 REAL mAH, which translates to about 2.2 times charge. In reality, it's about there, maybe 2.5 times charge. You can verify this by taking a known GOOD power bank and charge. I have observed that this is correct.

I thought you're an EE guy.

i think just no stock for astro 3 2nd gen 12k MaH and slim3 6k mAH only.

You noticed also?
Want to buy anker, no one wants to bring in. Got mine, then so many PM from sellers claiming to sell Anker.

I can attest that the genuine Yoobao 11200 mAh ( YB 642) is one of the best , if not the best powerbank I have used amongst all those I have listed earlier on. It is not that bulky and I always take it with me when I go outstation. It has 2 power output ports 1A and 2A

EE for my general study only but specific in Mechanics. But anyway, i know the calculations but why do u assume it is 3.7/4.2 input voltage out of 5v?

Coz the 18650 batteries or even LiPo are rated for 3.7V, and go to 4.2V when full. It will drop as you use it down to 2.8V where the protection circuit stops the battery.

So you get a 7805 or similar power transistor which converts input from 1.5V to 12V into 5V, which is where you get the conversion loss.

Okay. Good explanation there.

5hr SOT is GOOD. You got to PLAY for 1.5 hours, and still have another 3.5hrs of active use (ie staring at the screen). No other phone (except those on Wifi only or Airplane Mode, or the large capacity phones) can give you this.

BTW please add yourself via the form in post 4.

This post has been edited by joytest: Aug 2 2013, 12:22 PM

wah... did u set ur <insert launcher name> as visible notification ?
hahaha...
i turn off all stuff mah

Some news:

USB 3.1 Specifications Published, Supports Speeds Up to 10 Gbps

http://www.cnx-software.com/2013/08/02/usb...-up-to-10-gbps/

......
So after Full Speed (12 Mbps, USB 1.1), High Speed (480 Mbps, USB 2.0), SuperSpeed (5Gbps, USB 3.0), we’ve now got SuperSpeed 10Gpbs (SUPERSPEED+) with USB 3.1.
The standard is backwards compatible with USB 3.0 and USB 2.0, but apparently not USB 1.1. It will also allow for up to 100W to be sent through a USB cable.

haha... same as mine S4 LTE...
from full charge 100% -> 60% in 100 Mins

02

2013-08-02

Added a "Fakes" subsection to Cases after the reported fake

13

new:FAKES

No names mentioned, but pics posted for information.

woot? now USB 3.1? wa... PC using USB 3 now 3.1??? so fast...