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Time for a ST1200/2300 battery project?

New MessageTime for a ST1200/2300 battery project? (modified 1 times) mdevour
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Greetings,

I'm just setting up an ST2300 as a book reader for the kids. I've read the archives from the beginning to get up to speed on the Stylistics. Thanks to everyone for their contributions, and especially Wanderer for a complete set of Win98 setup files. Next step is Linux.

My only battery runs the unit for less than an hour. As far as I know there's no way to resurrect it.

The other options seem to be e-Bay; new packs from a bunch of places; or rebuilding.

I see nothing on e-Bay right now, though I remember seeing a couple of auctions of surplus new and used packs go by in the last couple of weeks. Anybody got any to sell?

New packs are available from a number of places, for prices ranging from 175 to 250 bucks, which is more than I have in the entire system. <sigh>

Rebuilding with Lithium Ion cells looks tough. I can't find a source for the cells after a day of looking, but I did find a lot of discouraging comments from battery rebuilders saying they can't refurbish Li-Ion packs at all. I can solder and hack with the best of 'em, but I know I don't know all that I should before tackling the project.

Rebuilding with NiMH looks more do-able, though it might be tough to get quite the mAh capacity in the available volume. It'd sure be cheaper than buying new. What I don't know is if the charging and temperature circuits would present any problems.

I'd like to find some good batteries (for a decent price) or work out a good strategy for rebuilding them. I've got some tinkering time so I'd be glad to play guinea pig if any of you would be willing to advise me. Then I could post a tutorial on the hack so others could benefit.

Dead packs must be common out there. Wouldn't it be nice to be able to do something useful with them?

Thanks,

Mike D.

09-28-2003 13:40:30

New MessageRE:Time for a ST1200/2300 battery project? (modified 0 times) mdevour
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A few things I've picked up on since my post above...

Reconfiguring the power management features and running all the way to shutdown, I get a good two hours out of my battery. It makes it *useful* though still on the short side.

Still nothing on eBay.

I found what appear to be new packs for $129 apiece at one vendor. That is at least reasonable.

I also found a source for Li-Ion cells at 7 or 8 bucks each. That's less than $80 for a rebuild. Again, reasonable. They're 1400 mAh 3.7 volt cells which should stack up 3 by 3 into about a 4200 mAh, ~11 volt pack -- assuming it's as simple as soldering the new ones in in place of the old. I still won't know what else might be involved until I crack open a pack to see.

Given the uncertainties above and the usable status of my current battery, I'd prefer to pick up a dead one from somebody to experiment on. Any of you have a dead pack for a 1200/2300 you'd part with for shipping and a small gratuity?

Be well,

Mike D.

09-30-2003 04:50:17

New MessageRE:Time for a ST1200/2300 battery project? (modified 0 times) pengyou
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What kind of luck have you had with battery packs?
06-16-2004 08:53:54

New MessageRE:Time for a ST1200/2300 battery project? (modified 0 times) jondz
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hi...you still here? I have a dead 1200 battery.
08-04-2004 00:44:23

New MessageRE:Time for a ST1200/2300 battery project? (modified 0 times) DssEnigma
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Im working on a mod now using used toshiba tecra packs. They are also 10.8 volts and should work fine. They are also reaily available for cheap. Ill let ya all know how it works out!
10-01-2004 20:33:49

New MessageRE:Time for a ST1200/2300 battery project? (modified 0 times) hjrutgers
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Like to read your story when it works!!
Some pictures?
thnx anayway
10-27-2004 13:19:48

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