Don't have to much time to be around lately (exams) but this issue was important to me.
Anyway, I've made dosen different chargers for palms, 3 of them for T3 alone. All they are of course good and saved me million times, but they are bulky, and sometimes i forget them, or forget to recharge them. Usually this happends when i need to record important lecture. my T3 can only record 1.5 hours on it's own battery - very sad.
There is also no large enough battery that you can fit instead of T3's - 30-40 % woudn't be enough for me
So i got myself a new Idea - to add second battery in between the T3 and Hard metal case, which i never take off.
So i found the battery that fits my need - a battery for an Ipod - it is very wide and toll, but it's only 3.5mm thick. So i ordered the battery for about 15$ off Ebay, here it is:
Here it is in comparison with T3's own battery:
I had to remove built-in protection circuit from Ipod battery - since it's already in T3 and i don't need another.
Than i soldered thin wires to the battery. Soldering the battery must be done with very well-heated soldering iron for a very short mement - so don't let the battery to heat up.
Next taks was to find out how to transfer 2 wires inside T3. Since i didn't want to drill holes inside T3 case - i used one of the holes on the back that - those are used to hold flip cover. I alredy had wires leading to T3's battery appartment and even a specific connector that i finally don't need anymore. I used to plug auxiliary batteries through this connector.
To gain maximum space i removed the black soft plastic from interior of T3's hard case - to fit the Ipod battery there:
If i simply put T3 on top of the battery as is - it will make trouble closing/opening slider, so i used thick double-sided tape in the area that doesn't move - so the the rest of the back that is attached to the slider would be raised above battery and would enable for slider to move freely.
Soldering wires was pretty difficult - because they must be shrt, and i had to avoid shortening them (short circuit)
This is how wires look inside T3 - the are glude to the plastic carcas and lead to battery compartment.
Since i had to connect two batteries in parallel - i disassembled the T3's battery, took out the protection circuit, and soldered ipod battery to it's input.
That's about all i had to do. This is how everything looks assembled, I had to remove most of the black soft plastic, but there is no pressure on between T3 and battery, and close closes easily, as before.
You can spot end of the battery here:
Well, an obvious problem arises: the reset hole is completely covered. The only way to reach it - is to drill hole inside the battery -
I rely on the fact that have very few resets - about 1-2 per month. It's quite some time since i used to install 20 programs a day. All my soft is working properly,and very few changes are made. But just in case i installed a CrashPro - so it will reset by itself , when stuck. I didn't tested it - but i hope it works, It better be, otherwise i will have to wait really looong time till battery(ies) empty.
I have tested my T3 in different conditions 3 weeks ago, when i added Second battery (similair procedure) to friend's TE, you can see it here: http://discussion.brighthand.com/pa...&threadid=73943
Finally pics are UP. I really hope that pics will hold up for couple of days ( those free hosts are terrible)
spu speed: standard,400mhz, Screen - always ON, brightness: medium. pocket tunes is playing Mp3 track in loop, volume : minimum.
So in these conditions my T3 (before) could last from 120 to 130 minutes. I guess most your T3's are in a little bit better shape. Because my T3 was 1 year when i bought it from second hand 1/2 year ago, and i use it very frequently.
Aniway, after the procecure battery lasted in same condition first time for 6.5 hours, second time for 7.5 hours. So far - so good. Testing more.