Can anyone help me out with the Cube U30GT2 tablet.

Bought it from Ebay, box says 32gb but system info only says 16gb storage..odd.

Anyhow, from a full battery charge the battery can drain about 1% per minute while watching a film say, brightness right down, wireless off. When the tablet reaches 20-40% battery power it can switch off and won't come back on without a recharge.

Apps say the battery is OK and have used some battery saver apps.

Is it worth rooting the device? Cube support says update firmware but it appears I'm on the latest version.

Thanks