I just received my enhanced battery and it’s pretty nice. It adds a little heft but it actually makes my TR1 feel more solid. Perhaps I wasn’t used to the light weight of the 3.06 lbs compared to my old 3.4 lbs Fujitsu P2120. I often carried the enhanced battery on that machine which brought it closer to 4lbs. The TR1 + enhanced battery feels a tad bit lighter than my old Fujitsu P2120 + enhanced battery.
One thing I’ve noticed so far is that it fits better than the regular battery. It fits very snug and doesn’t rattle when installed. Very solid.
It also raises the back of the notebook a little more off the table and gives a slight slant to the keyboard making it a little easier to type on.
I’ll have to run tests to see how long it lasts…so far, it’s pretty impressive. It’s nice when I see the battery life jump to 9-10 hrs (although on very low brightness). Realistic battery life seems to be 6-7 (at 5/6 brightness setting) hours which is simply amazing as it’s essentially a full day of work. I’ll have numbers soon once I figure out a good way to test the battery realistically.