Pat Kelecy wrote:
> It's a Li-ion battery (original IBM). Since posting this I've done some
> further investigations and think part of what is going on is a software
> issue (with the way the laptop tracks the state of charge). I updated the
> BIOS and applied other updates to the system (using ThinkVantage System
> Update) and recharged the battery again. The laptop will now run for about
> 30 minutes on battery alone. That's a lot better than what I was seeing
> before, but still not the hour + the seller claimed.
>
> When charged, the Battery Information indicates the battery is at about 12.5
> volts, and during operation it draws between 1 to 2 amp, depending on what
> the laptop is doing. That seems reasonable, but since it only lasts about
> half an hour is no where near the rated 3.6 amp hours.
>
> I'll try checking the voltage with my meter (to confirm that it really is at
> 12.5V when charged) and also run PC Doctor. It would be nice if I could
> somehow eke a little more run time out of it.
>
> Thanks for the help. -Pat
>
>
>
> "Woody" <> wrote in message
> news:vCzlh.7879$ ...
>> You need to check the voltage of the battery and load test it. Did the
>> battery light on the laptop show it was charging for a couple hours before
>> turning green? What kind of battery is it. Li-ion? Bring up on AC and run
>> PC Doctor. If not on your Thinkpad you can get it from the Lenovo support
>> site as well as any drivers you may need and the hardware service manual.
>> First though is to check the battery voltage. Fully charged it should read
>> a couple volts above the Nom voltage listed on the battery label.
>>
>> "Pat Kelecy" <> wrote in message
>> news:576dnfe-...
>>> Sorry for the delay in responding. I was away over the holiday.
>>>
>>> The battery did come from eBay, but the seller assures me he tested it in
>>> a T22 and that it ran for well over an hour. He seems honest, and has
>>> offered to give me a refund, if I want, so I'm inclined to believe him.
>>> I guess the only way to know for sure is to get another battery and try
>>> it. But if there is some other problem with the unit, I was hoping to be
>>> able to confirm that, and, if possible, fix it before going through the
>>> trouble of returning the battery.
>>>
>>> Any ideas on how I might be able to trouble shoot this? Could the CMOS
>>> battery (which has never been replaced) play a role in this?
>>>
>>> Thanks. -Pat
>>>
>>>
>>> "Woody" <> wrote in message
>>> news:4jikh.17938$ et...
>>>> New battery or used battery. Where did it come from? If from e-bay it
>>>> could be someone else's junk.
>>>>
>>>>
>>>> "John Doue" <> wrote in message
>>>> news:u5Ljh.5$...
>>>>> pat wrote:
>>>>>> I was recently given a Thinkpad T22. When I first got it it wouldn't
>>>>>> run at all off the battery (although it runs fine off the AC adapter).
>>>>>> I assumed this was because the battery was old and worn out. So I
>>>>>> purchased a replacement battery, and after letting it charge overnight
>>>>>> (where it appeared to recharge fine) I went to use it but after only 3
>>>>>> or 4 minutes of use got a message saying the battery was low and to
>>>>>> shut down. The power died shortly after. Although it's possible the
>>>>>> new battery could be bad, that seems unlikely. So I'm wondering if
>>>>>> there could be some other problem with the unit (maybe with the
>>>>>> recharging?). Any suggestions?
>>>>>>
>>>>>> Thanks for any help. -Pat
>>>>> I would start by asking the giver ... May be he also experienced the
>>>>> problem. It certainly looks like there is a short somewhere that drains
>>>>> the battery very fast but not so badly the power supply cannot
>>>>> compensate for it.
>>>>>
>>>>> Regards
>>>>>
>>>>> --
>>>>> John Doue
>>>>
>>>>
>>>
>>>
>>
>
>
The CMOS battery shouldn't be a player in this. When the CMOS batt
dies, you'll get an error message when you start the machine.
Remember that, particularly when new, batts thrive on a couple of
complete charge-discharge cycles (more so NiMH's than Lion's). If it's
an older battery that's laid dormant for several months, you might try
the charge, then fully discharge routine.
--
PJ
'89 auto cpe - '02 eblu 6spd
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