In an attempt to quantitatively measure the Samsung Galaxy Tab 10.1's battery life in a controlled benchmark environment, we ran a test in which we set up a webpage with a mix of graphics, Flash media and text. The page automatically refreshes every three minutes. This is a simple baseline test that measures up time with web browsing.
For this test, we set the Galaxy Note 10.1's display to 50% brightness, which is still plenty bright and easy on the eyes and connected to the web via 2.4GHz Wi-Fi. The stock browser was used.
Please note that when the Transformer Pad 300 is docked, its internal battery is augmented by a supplemental battery in the dock, which boosts total battery life significantly. While docked, the Transformer Pad 300 lasts the longest of all the tablets represented here. Versus all of the other tablets, however, sans dock, the Samsung Galaxy Note 10.1 offers the best battery life by over a half-hour.
The 7000 mAh battery in the Galaxy Note 10.1 ensures plenty of uptime, but we'd also like to mention the device's excellent stand-by time. When the Galaxy Note 10.1 goes to sleep, its battery is barely utilized. Excluding our battery life test, we've only needed to charge the Galaxy Note 10.1 once in about a week's time. If you're only a light tablet user, expect the Galaxy Note 10.1 to last multiple days without needing a charge. Battery life is excellent with this device.