MSI Wind U135 Netbook Review
Our testing found that the U135 could last for 3 hours on a single charge, which is equally as good as many of the other netbooks that we've tested over the past year or so. Particularly for just a 3-cell battery, we were quite impressed with the life. Mind you, this is also with Wi-Fi on, the screen at 60% brightness and some sort of task going at all times. If you used it less, you could easily get that figure to 4 - 5 hours on a single charge, and even higher if you opted for the 6-cell battery.