Asus eee slate ep121 battery upgrade

Link12765

Distinguished
Jan 13, 2011
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18,510
So recently I bought an ep121 which is basically a kickass windows 7 tablet. It doesn't have the best battery life, maybe 3 hours at most. From what I can tell, there is no extended battery or larger battery capacity upgrade for the tablet. I was thinking, hypothetically, if I was to cut out a section in the back of the case for an extra internal battery to sit on top of the battery already in the tablet and solder the wires together in parallel, would I have doubled the capacity if the battery and in turn given my tablet around 3 more hours of battery life?