I would to get a backup battery for my Sony DSC-H10. I've found a new that have higher mAh than the stock battery. http://shop.vendio.com/dingding9/item/979125308/?s=1218450807 says 1400 mAh and http://www.bluenook.com/product_detail.asp?pid=678 says 960 mAh The first link has 0 reviews, while the second has 28 reviews. Is the higher value the better? Why would someone buy the 960 over the 1400?