After testing the Iconia A1 for a couple of weeks, we have been very impressed with the battery life that it has to offer as it has never let us down. In fact, the 4960 mAH battery in this tablet is larger than most of its competitors.
In our battery life test we ran a 30 minute MKV video clip with the display at full brightness and Wi-Fi (and notifications) switched on. We recorded the decrease in battery capacity over this 30 minutes (6% decrease) and then calculated the time it would take to completely discharge the battery from this.
Despite the Iconia A1 being a budget model, it's clear that Acer haven't compromised on the battery.