The interesting thing is A: this is a new battery, bought last year, when I acquired the laptop as a gift. B: I have a PII (yes, that's a 2)-era laptop made by HP that still works perfectly. C: I've used my R/C li-ion/li-poly charger and balancer on totally dead packs before and they come back to almost full life again. As soon as I find an appropriate header I plan to do the same for these. It's interesting because the battery packs for this laptop seem to be controllerless. (connector off pack has taps from each cell pair). Usually from what I've seen most commonly from other laptops in the past is that the cell pairs get unbalanced, which causes charging to shut off prematurely. In this case it's just not charging at all.
On Wed, Jun 3, 2009 at 2:40 PM, wes <[email protected]> wrote: > For a 10 year old laptop, it will likely be much faster/easier (not to > mention cheaper) to find another of the same model on ebay, maybe with a > broken screen, and swap parts, than it would be to actually repair the > circuitry on the board. > > I understand the reasoning behind not just getting a different model > altogether, but 10 years is really pushing the limits of laptop life > expectancy. I am on my 3rd Latitude D800 (with parts from the first 2 still > going) and am about to start looking for my 4th parts donor.... > > All that said, it is far more likely to be the battery itself as Joe Pruett > stated. This is just based on my experience. > > Since you have a spare battery, this should be very easy to test. > > -wes > > On Wed, Jun 3, 2009 at 2:03 PM, Eitan Tsur <[email protected]> wrote: > > > I have a ~10(?) year old laptop that has recently stopped charging it's > > battery. (few days ago it stopped charging past ~30%, ran on battery for > 5 > > minutes, laptop died, now shows 0% charge). Does anyone know what the > > first > > step would be to diagnose this issue? Laptop itself powers up just fine > on > > wall power, and I have a spare battery I can try to verify it isn't a > blown > > fuse or something in this pack. If I can find a 7 pin 2mm pitch header I > > plan to hook up my li-ion charger/balancer to the pack to recharge, > however > > I fear the charging circuit on the motherboard may have gone out. > Assuming > > this is the case, does anyone have the knowledge or experience to > > diagnose/repair this? I've done SMD rework before, but circuit > > design/reverse engineering/testing is beyond me. Any advice will be > > appreciated. > > > > regards, > > -Eitan Tsur- > > _______________________________________________ > > PLUG mailing list > > [email protected] > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > _______________________________________________ > PLUG mailing list > [email protected] > http://lists.pdxlinux.org/mailman/listinfo/plug > _______________________________________________ PLUG mailing list [email protected] http://lists.pdxlinux.org/mailman/listinfo/plug
