oh no...my SII wifi die on me today. enable WiFi, it will scan but then after a few seconds, it auto turn off. while scanning cannot detect any AP where my G. Note able to detect. need to send to SC this sat.

btw, i already do factory reset still cannot detect and will auto off. try to manual add WiFi but fails/cannot save error message popup.

I have been using SII as hotspot for 8hours daily for last two weeks. may be that kill the WiFi adaptor.

Yes, 8 hours during office hour. That time is to test out stock battery, 3500mAh extended battery and 2200mAh external battery pack.
No. still gingerbread (rooted).

the correct formual is:

Power up Voltage from 3.7V to 5V:

3.7 x 5000 / 5 * 0.85 = 3145mAh (5V)


Charge SII 1650mAh:

3145 / 1650 = 1.91 full charge

Please note that all external battery pack/portable charger rating is refer to 3.7V base voltage and not 5V. All USB device are using 5V, so require step up voltage. The 0.85 is 85% voltage conversion effiectioncy. The formula is get from Internet.

This post has been edited by peterscm: Apr 28 2012, 01:23 AM