Friday, January 9, 2015

Should I use UPS with my laptop to extend the battery life?


I recently bought a new Vaio laptop which has a 4400 mAh battery. I will use it at home most of the time, and I have an unused uninterruptible power supply (UPS). Should I remove the battery and connect my laptop to UPS? If I do that, how much does it effect the battery's life? I know that batteries stand longer when kept in half-charged in a cool place, but their lifespan decreases in time due to age effect as well.


So is it worth to keep the battery out of my laptop, use a UPS instead and mount it when necessary? or should I continue to work with battery mounted?


Answer



No. External power alone is not enough for all cases. Many laptops only work at full capacity if they have a battery and external power. This is because the external power supply can only provide 70-90W but the machine may need 100+W when CPU spikes high and the HD/DVD is spinning. Having the battery on board allows the machine to sip from the battery when needed and charge it back up when not.


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