How Many Volts Is A Laptop Battery. Its an ultaportable 2 pound laptop of late 2003 vintage with the following specs. Most manufacturers rate a battery by assigning a nominal voltage.
So a 48 Whr battery with a voltage of 16 V gives us 1000 48 16 3000 mAh. Nonetheless the supplier says my Gateway laptop can run on this battery. So I ran a few tests with my trusty kill-a-watt on my Dell Inspiron 300m.
It is a lithium ion battery for the Thinkpad Z60M Series.
Draws around 44 watts. If the power adapter delivered 148 V then it would be difficult to impossible to fully charge the battery as there would be no voltage headroom left for the charging. Use the tables below to get the voltage and cells chemistries used in your battery packs. As energy E is power P multiplied by time T all we have to do to find the energy stored in a battery is to multiply both sides of the equation by time.
