Macbook Pro 2011 13" second hdd question

[george315]

I'm using a 13 inch Early 2011 Macbook Pro and I have installed a 500gb Momentus XT. Right now the battery life is only at about 4-5 hours. I was wondering how much that would decrease if I installed my original 320gb hard drive in the optical drive bay. Would the decrease be significant?

Thanks

 

[RockPortTech]

I suspect the battery would not be much different than with one, unless the 2nd drive is spinning up/down a lot accessing programs. I bet the difference in battery life is 30 minutes at most.

 

[miles01110]

Not going to matter.