Just got my new apple battery for my 2009 13" mbp.
After i install it what should i do? reset pram/smc and let the battery die out and charge it to calibrate?
PRAM/NVRAM has nothing to do with battery/power/charging issues. Resetting it will not help. Only resetting the SMC addresses such issues, but it's not necessary to reset it unless you're having specific problems.
You'll note I linked him to the same article, and as the MBP's with the built-in batteries did not come out until Late 2009, I wasn't sure which model he had.