Right,you need a new battery of 11v, like this one:

http://www.notebookbatteryshop.net/a...h-battery.html

http://www.alibaba.com/product-gs/64...Acer_1410.html

The original battery is this one:

http://store.acer.com/store/acerna/e...ryID.60138800/

But in the Homepage of acer only specify thisNot if is 11v or more)

ACPI 3.0 CPU power management standard: supports Standby and Hibernation power-saving modes
47.52 W 4400 mAh 6-cell Li-ion battery pack: