What type and where to buy?

[uninformed]

Hey all,

Im after some info on 9v batteries. I need to get some good ones, preferably rechargable. They will be to power my portable headphone amp.

Are Lithium better than NiMh for this use.

any help appreciated
cheers
Serg

[Blknight.aus]

Aldi and jaycar. No I'm not kidding about the aldi ones, they perform the same or better than the bottom spec jaycar ones. Nimh will offer the best bang for your buck but lithium will last Longer between charges