Hi, I have an Acer 8930g 644g32mn laptop. I need a new battery but I can't find the exact one. My current battery is 14.4V and 4800mAh, on the battery it says only replace with AS07B52. So I found some, but their spec is different, one is 11.1V and 5200mAh and the other one is 14.8V and 4400mAh. I know it wont be okay to buy 11.1V as it is too less, but would it be okay to buy 14.8V battery instead of 14.4? Does 0.4V make a lot of difference? the problem is that I cant seem to find the exact V for my laptop. All help will be appreciated Regards