Why does laptop battery show < 100% charge

[Jatin K]

On 09/18/2009 02:56 PM, g wrote:
> James Wilkinson wrote:
>    
>> Jatin K wrote:
>>      
>>> please visit *http://www.batteryuniversity.com/* ...... and gain
>>> some knowledge abt batteries
>>>        
>> Was that supposed to be general advice? (If so, thank-you – but I’m not
>> sure why it was necessary.)
>>      
> james, this is not to insult or hurt your feelings, but, from what you have
> posted, you do not know much about batteries. especially when it comes to
> cycling, ie, charging and discharging.
>
> presuming that you battery is lithium-ion, you will not have 'memory' problems
> that ni-cad batteries have. but, you will have heat problems.
>
> it is for that reason that you should not have a battery, of either type on
> charge for a long time and then remove for a short time of discharge and then
> recharge again unless it has drop in level an appreciative amount.
>
> well designed chargers have circuitry to not apply a high charge rate until
> voltage level is below a predetermined amount, along with circuitry to
> monitor temperature and control high charge rate. cheap charges do not.
>
> in brief, ni-cad cells discharge with a tapered level over time then drop
> below usable level. lithium-ion maintain a level over time, then drop sharply.
>
>    
>> Or did you feel that there was some mis-information being given out?
>>      
> <snip>
>    
>> And few readers will have the time to follow every helpful link.
>>      
> information given to you by others has not been 'mis-information', but some
> of it could have been more complete to give you a better understanding.
>
> if one does not care to take time to become more informed, one must be
> ready to accept consequences. in this case, shortened battery pack life.
>
>    
>> So could you elucidate further?
>>      
> if jatin does not 'elucidate', i would not blame him. why should he write
> something that he has given you a link to read to find out what you need to
> know?
>
> long story to short, rtfm. or in this case rtfl.
>
>    
please forgive me if I've hurt someone's feelings ........ by posting 
the link here or I have done any mistake