battery for toshiba satellite m45 s359

I have a toshiba satellite m45 s359 I need to buy a new battery for just so many off brand names out there was wondering if you all know of a good battery name that is in reasonable price range also would I be wise to get a 6 9 or 12 cell.
Bought a new battery about 4 months ago and it is no good won't hold a charge and it was a 9 cell contacted the company and getting the runaround in the mean time got to Just get my laptop running use it alot on the road.
So if anyone knows a good company or and a good brand name battery please let me know
Thanks

 

Thank You Major Attitude
I did go to Amazon and ordered 1 from AnkerDirect they seem like a good company even though its a 6 cell battery will find out

I don't know if can post this or not sorry if I am wrong in doing so
But don't ever ever buy from a company called mwave or hlcomponents they are the same company but they don't care they get your money and 4 months later the battery is no good you call and complain and they don't care your not getting a replacement refund no nothing Sorry just had to get that off my chest and let other people know
Thanks