Jornada 820 Battery

So everyone knows, the cells were properly disposed of through my company's hazardous disposal program. I do industrial environmental engineering and know what and what not to do with these types of materials.

So everyone knows, I didn't mean toss 'em in the garbage - I meant dispose of 'em. (Sorry for the misunderstanding.) I never throw any batteries in the garbage.

I heard back from Gordon, and he wants to know if we can supply him with a drawing of the PCB, as maybe they can try to build one. I'm not sure if he meant a template of the PCB to determine its size and shape, or a wiring diagram, or both. (I sent an e-mail reply asking him; waiting for his response. I also asked if he wants me to send the pack to them so they can see the PCB and cell connections in person.) Anywhere we can locate the wiring diagram for the pack's PCB, in case we need it?

yeah 7.7V would be enough to run them but i assume that's been already tried?

different 7.2V cell, you mean not lithium ion? don't try it

The problem was that the new cells would read around 7.7 V, but when the cells were installed in the pack with the PCB the terminals that connect to the 820 wold read a lot less.

Gordon from GPCell e-mailed me back today. He said that he talked to his engineers, and they may be able to give it a shot, but they're not confident they can build the PCB. Gordon asked that we send him both the template drawing and the wiring diagram. Anyone know where we can find the latter online?

No, I meant a 7.2V Li-ion pack from say those cheap portable DVD players. I'd even figure to use the player's charger -- I could buy two, and swap the batteries for charging.

Well, since I don't have a wiring diagram for the battery pack PCB (and apparently no one else here does), I'm wondering if I should try checking with a local electrician to see if (s)he can properly connect the cells.

I have a deal cell I can donate (it's the black one from my prototype) if it can be replaced with a discount.

Also, what problem is happening with the connection of the cells? Shouldnt be too hard. I'm going to open up my battery and give it a shot.

Want me to send you the pack ledthrax tried it in so you can try it without ripping open your own pack?

Has anyone contacted http://www.batteryrefill.com/contact_us.phtml and let them know your looking for a battery for your PDA?

Thanx very much for that link - I don't think anyone else here was aware of it. (Think I'll give it a shot myself after payday.)

Did Gordon say if he could provide tabbed ones? I'm pretty competent at soldering, but I'm a little nervous about doing so in close proximity to the battery itself, I'd rather solder to the tab with a heat-sink between it and the battery. For $8 plus shipping, I'm willing to try it myself, despite your difficulties.

I'll ask him via e-mail as soon as I get a chance.

Hi all I've got a battery source for the Jornada 820. At the following URL.
http://www.batteryrefill.com/laptops/hp/F1260-80068.phtml

F1260-80068, F1266A, F1266-60901 After Refill Capacity : 4400mAh/4.4Ahr
$69 - On Sale!!!
Out right Purchase
$109 - On Sale!!!

HP Model Number : F1276a, F1276-60901 After Refill Capacity : 6600mAh/6.6Ahr
Refill Price : $89 - On Sale!!!
Out right Purchase --- You don't need to send your battery ----- $129 - On Sale!!!

I've got a response from another source as soon as I get to read I'll post that too
I hope I've helped all of you in a small way.

$69 for them to refill it, versus $8 for new cells if I do the soldering ... I'm still hoping we HPC'ers can figure out how to recell these ourselves.