|
Posted by Barry Watzman on August 29, 2004, 8:22 pm
Please log in for more thread options
I would cycle the battery 2 or 3 times to see if it improves. Charge it
to 100%, discharge to 25% or so (not lower), you've already done one cycle.
However .....
When you cut the capacity (mah) of a battery in half, you cut the life
of the battery MORE than in half, sometimes a LOT more. Batteries
provide the most total power when the discharge rate is relatively low,
while you have gone in just the opposite direction, keeping the
discharge rate constant bud dropping the battery capacity in half.
Alex Quant wrote:
> I recently picked up a "new" Portege 3000 series battery (PA2467UR -
> 2600mAh) which appears to be in mint and unused condition. Unfortunately it
> will only deliver just over an hour of online time (from 100% to about 15% -
> I won't go lower for obvious reasons) with medium CPU speed (quiet cooling,
> lowest brightness setting, Speedstep set to "Battery Optimised"). This
> compares poorly with an old hefty high-capacity battery (PA3039U-1BRL -
> 5600mAh) which delivers well over 4 hours (5 with low power management
> settings). At just under half the capacity I would have expected this
> PA2467UR battery to deliver around 2 hours on-line time?
>
> The battery doesn't show a sudden drop in charge percentage which is typical
> of a pack coming to its natural end.
>
> So, I'm wondering if anyone has experience of using this battery in a
> Portege 3440/80/90 and can report back the average power-on time for a good
> condition battery with similar PM settings? Its being used in a 3480CT
> (PIII-600MHz Speedstep).
>
> Fortunately the seller has a very fair no-quibble refund policy - just need
> to know others experiences so I can either avoid these or look elsewhere as
> they may have a batch that is old or has been stored incorrectly.
>
> Thanks,
>
> AlexQ
>
> ~ Reply To valid ~
>
>
| 
XML Sitemap