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View Full Version : brando cradle mod for extra battery

Kitara
12-21-2005, 03:30 AM
hi,

i received my brando cradle yesterday, tried to mod it to fit a a battery in it. It sure is allot smaller then i thought it would be. i want to put my old pda's battery inside the cradle wich fits like a charm, its a 1400 mah 3.7 v battery from panasonic wich used to be my battery for my cassiopeia e-125 device. now i'm stuck, i don't want to mod mu ux self, so i figured i did the following, i connect the battery v+ to pin 1 and the minus to pin 4, like the charging cradle does, i would have expected it to lit the charging led, and the status in my pda is charging. I read somewhere on a battery mod forum that i must disconnect pin 2 within the ux and redirect it to the battery v+ , but like i said, i don't want to open my ux. I opened my cassiopeia once to overclock, and nothing good came out of that idea so i ask you guys, is there a way around?

thx in advance,
btw nice batterymods, you sure are all ux dedicated!
dragonsgames
12-24-2005, 04:54 PM
Hmm, not that I know of... :(
Kitara
12-25-2005, 06:57 AM
No problem, what i'm gonna do is the following, i'm already doing it by the way.
I'm gonna buy 8 AAA rechargable batteries 1100 mah. and built them in the bradno case, that way i get 6 volts, with a diode i should easilly punch it down to 5 volts, and then the pda will think it's an external source.

I hope this will work
Tam Hanna
01-01-2006, 08:07 AM
Hi Kitara, DONT!!!!

Youll prolly scrw your handled with a toohigh volage. Either use a LM 7805 for crating the 5V(linar reglator, burns excess volatge to hat) or use a switching converter like the ones offered at Dallas Maxim's!
Kitara
01-01-2006, 11:37 AM
Hi Kitara, DONT!!!!

Youll prolly scrw your handled with a toohigh volage. Either use a LM 7805 for crating the 5V(linar reglator, burns excess volatge to hat) or use a switching converter like the ones offered at Dallas Maxim's!

3
Hi, Tam Hanna,

thx for the reply, i know this may sound weird, but could you draw me a plan? because i'm only familliar with the basics of electronics, and if i want to use this LM 7805 , i want to make sure i do it right, so what should i do? could you please give me instructions? or draw me a plan?

thx in advance