Hi, everyone, I would like to order a brand new MacBook pro-2010 15 battery, but there is two choice. The first battery has Voltage: 10.95V Capacity: 73WH and the second battery has the same voltage but 57WH capacity. Which battery should I order I'm confused. Price is very different. Is there happen some issue if I choose the low capacity. If it just affects the performance then no problem to me. What do you think guys I need your help and advise. Thanks for the reply and have a wonderful day.