Classic Battery—Positive Experience

[kmasterk]

I recently get a refurbished battery for my venerable 755C from Paul, aka goldeneagle (memberlist.php?mode=viewprofile&u=60882). Finding a "new" battery for this vintage is nearly impossible, but Paul's battery works even better than I had hoped. I use mostly WordStar 7 in DOS 6.22, with some tinkering in WFW 3.11, and am averaging about 5-6 hours per charge.

Not only does it work well, but it was a fair price, shipped quickly, and came with top-notch support.

If you are looking for a hard-to-find battery, or a refurbishment of a dead one, I highly recommend Paul's services!

[atagunov]

There's actually a "trade secret" I'd like to learn about refurbishing the batteries.. How does one connect to consecutive batteries in a chain? It's obvious that you weld/solder wires to the first/last battery in the chain, but what do you do between the batteries?.. Do you use any solder there (if you're soldering not welding)?..

[cadillacmike68]

I wonder if Paul can provide or fix my 600 and T22/T30 batts...

[fatkatsupra1]

Thank you for posting your experience. I PM'd Paul!

[goldeneagle]

I wonder if Paul can provide or fix my 600 and T22/T30 batts...

Sorry I've been kinda out of the loop.

I've done T2x batteries, but back in 2007! I think those, we reset the EEPROM that stored battery characteristics using a program called Smart Battery Workshop, done by a Russian developer. It was shareware, but the guy I worked for bought all the rights and then killed development afterwards.

The 600 batteries were crap then, and crap now. A lot of them actually have cells that amazingly can be revived. I think the problem is the piss poor battery management hardware from Panasonic. I can't speak to the aftermarket batteries, since they're completely different internally than the IBM OEM ones.

I rebuilt a bunch of packs, and they're all iffy on if they still work or not. I think I might've reused some old cells at the time, but the 600 packs are fairly straightforward for the most part.