Makes your Sony Vaio Vgn-tx91s battery life longer

Not good for the Sony Vaio Vgn-tx91s battery:
The following points will shorten the life of your battery properly, so it is not advisable to do so.
The battery charges half, so when the battery is 70% charged the power pull.
Charge the battery not just when it is fuller than 10%.
Connecting the laptop on AC power with the battery in the laptop while it is already fully charged, is not conducive to the life of the battery.
When it is not necessary, do not use the laptop when the battery is charging.
Remove the battery from your laptop when it is low, charge the battery first before you remove it from the laptop. The battery shall run very slowly empty when it is off the laptop and it's not good when it's really gone completely blank. So make sure that you never actually reach the 0% battery power.

Sony Vaio Vgn-tx91s Battery Replacement
If the battery of the laptop do not work properly, then it is always possible to find a new purchase. However, it remains possible to simply power to work with your laptop.

When buying a new Sony Vaio Vgn-tx91s battery for the laptop always ensure that you buy the right type of battery for your laptop brand. It is not good for a laptop when you have a battery with a different voltage put into it. The voltage of a battery is displayed with a number of digits and the letter V (eg 14.8V). Another capacity (mAh) of the battery is possible; you can read more about this under the heading "Counterfeit batteries.