Below-average battery life

Below-average battery life
Welcome to a laptop battery specialist of the Acer Laptop Battery
The Acer Iconia Tab 8 is powered by a quad-core 1.33-GHz Intel Atom processor and 1GB of RAM, which didn't prove swift in my testing.
For example, switching from landscape to portrait mode took more than a second, as did returning to the home screen. On the plus side, the camera app opened in a little more than a second with six other apps open, which was only a bit longer than with no other apps running.
In another real-world benchmark test, we measured how long it took the tablet to transcode a 204MB 1080p video to 480p using the VidTrim app (shorter is better). The Iconia Tab 8 took 8 minutes and 51 seconds, which is better than the Tab 2 A8 with battery like Acer BTP-52EW Battery, Acer BTP-63D1 Battery, Acer BTP-42C1 Battery, acer BTP-44A3 Battery, Acer BTP-550P Battery, Acer BTP-73E1 Battery, Acer BATCL50L Battery, Acer TravelMate 4000 Battery, Acer TravelMate 2300 Battery, Acer Extensa 4630 battery , Acer AS10B31 battery, Acer UM08A74 battery(which took 9:13).
The Iconia Tab 8 fared decently on synthetic benchmarks. On Geekbench 3, a test that measures overall performance, the Iconia Tab 8 scored 2,059. That's better than the Fire HD 8 (1,518) and the Tab 2 A8 (1,781), but worse than the tablet average of 2,672.
On the 3DMark graphics performance test, the Iconia Tab 8's score of 13,601 blew away the Fire HD 8 (10,159) and the Tab 2 A8 (4,959).
It's worth noting that the Iconia Tab 8 doesn't support the fastest Wi-Fi standard, 802.11ac. Instead, it uses 802.11b/g/n.
Since the Iconia Tab I has just a 5-megapixel rear camera and a 0.3-MP front camera, I didn't expect stunning photos, but this tablet didn't even meet my lowered expectations.
A shot of the toys on my desk, taken with the rear camera, came out gray overall. My Daredevil and Thor action figures lacked definition, making them look as though the two shared one body. A selfie taken in my apartment with all the lights on looked so dark and grainy that I seemed to have been buried alive.
Acer claims that the Iconia Tab 8 should offer 8 hours and 30 minutes of battery life, thanks to the device's 4,600 mAh battery. On the Laptop Mag Battery Test, which involves continuous Web surfing over Wi-Fi, we recorded a time of 7:28.The Lenovo Tab A2 lasted 11:32, while the tablet average is 8:45.
It's true that I didn't expect much from a $130 tablet not that long ago. Times have changed. For just $50, I can pick up an OK tablet like the 7-inch Amazon Fire that does what I need it to do, albeit slowly. The Acer Iconia Tab 8 is faster and has a bigger HD screen, but with below-average battery life and poor cameras.
In this price range, we recommend the Lenovo Tab 2 A8 ($119), which offers much longer endurance. But the Iconia Tab 8 is worth considering if you want a budget slate that's slightly faster and lighter.