[Gta04-owner] Building Qtmoko and Bigger battery

[Dr. H. Nikolaus Schaller]

Hi Kevin,

Am 06.07.2012 um 07:18 schrieb Kevin Hremeviuc:

> Hi all,
> 
> Building Qtmoko
> ===========
> Firstly, thanks to everyone who helped me with getting Qtmoko to build (in particular Neil Jerrram). Unfortunately I had a death in the family and couldn't get back to it for a while. When I did get back to it, even with the correct git branch, the CPU load was max'ing out and the touchscreen wasn't responding. I could log in but no log file was giving me any hints as to what the problem was. I ended up blitzing the partition, installing the qtmoko v45 download, copying the 3.2 kernel and modules across and installing the qtmoko that I built. This time it worked fine. The 3.2 kernel allows proper suspending and Neil's change made all the difference to the waking up with the phone ringer or sms alarm working.
> 
> Bigger battery
> ==========
> I noticed that the custom GTA04 has a bigger battery (yes, I have battery envy!).

Yes, it is 3900 mAh

> Is it possible to use this battery with a standard gta04?

Electrically yes (well, not completely - it does not have a coulomb counter and HDQ).
Mechanically no: it is much bigger.

> How much would the battery cost? I don't mind hacking the case to incorporate the bigger battery (even if I have to by some plastic sheet and build a custom battery housing to attach to the back of the gta04 case).

If you don't mind having two components, there are battery boxes with USB output
working as an external (re)charger. This has the positive effect that it is a real
capacity extension and not only replacement. I.e. you can still use the internal
battery.

What I don't know is if you can charge NiMH cells in such a box or you need a
third component...

BR,
Nikolaus