installed on a macbook pro 13 "mid 2010 (Core2Duo 2,4ghz) in Snow Leopard I have no problems, the 2 screwdriver required for battery installation are supplied and installing it is a game children, the battery is very well packed and seems identical quality to the official battery (apparently), it even has a higher capacity (6067mah battery according coconut) against the 5789mAh announced on the original battery its first cycle.
contrary to what has been reported in other reviews, I had no compatibility issues, I do not even have the need to reset the SMC or pram can be was I lucky?
however remains to be seen holding it in time, given that I have only 3cycles for now, so I can not tell, I will change my review if it turns out that this battery takes ill the load.