Toshiba 8100 Power-up problem

Archived from groups: comp.sys.laptops (More info?)

Griffin wrote:
> Hi,
>
> I am hoping someone can help me with this problem (searched and
> searched with Google ... nothing related).
>
> The situation is:
> 1. Running on battery power (with a good battery - runs 2 1/2 hours)
> 2. Shutdown Laptop
> 3. Come back later.
> 4. Press power-on button, nothing happens. (Also no lights come on if
> I plug in the ac adapter either, not even the ac adaptor light.)
>
> Then:
> 5. Remove and reinsert battery
> 6. Press power-on button and all is well.
>
> It is an annoyance, every morning to get the machine started, I have
> to remove and reinsert the battery.
>
> So, somehow the computer seems to "loose contact" with the battery on
> shutdown until I re-insert the battery.
>
> Strangely, if I reboot immediately, like within a minute or so, there
> is no problem. Similarly, as long as machine is on ac power there is
> no problem. The problem only occurs under battery power.
>
> Anybody run into this? Ideas?
>
> Thanks in advance!

Looks to me like a problem in the battery control circuitry, either the
battery monitor chip if there is one, or on the mainboard, losing power
with no AC. Perhaps Toshiba has a KB on this?

Q