I'm having trouble deciding between a HP ProBook 5330m Battery and a HP FN04 battery for my HP COMPAQ 6730b laptop ...both have similar battery life, appearance,price etc . Which battery would be better?This is the battery site : http://www.cheap-aubatteries.com
if your laptop is a compaq business notebook 6730b then use this link for your battery. http://www.cheap-aubatteries.com/hp-compaq-business-notebook-6730b.html the 2 batteries you posted will not fit as sizes are wrong & even if right size would have fried the notebook as to much voltage.