Does it matter what kind of batteries u put in a rechargeable battery dock?

I have a energizer battery dock i got it for 20-25 bucks at wall mart it came with four batteries two my sister let some one borrow with out my permission and wasn't able to get them back and they other two got old i guess
its a really nice battery dock but i can't seem to find energizer batteries to go in the dock
does it matter what brand batteries go in the dock? I mainly need them for my Nikon cool pix camera for vaycay. Oh BTW their double A (AA) batteries…
i either go to radio shack or the local grocery store if they have them their no time to take a trip to wallmart. Please and thank you.

Typically chargers are designed for one type of rechargeable batteries either NICD or NIMH. There are a few with a selector switch that will allow you to charge either. There should be information on the charger telling which it is designed to charge. On the off chance yours will do both get the NIMH batteries.

The BRAND does NOT matter
but they do HAVE to be rechargeable ones, for sure

You need rechargeable AA batteries, ordinary AA batteries are not designed to be recharged. The rechargable ones will be available from radio shack for about $8 each, you can buy rechargable camera batteries but I don't think they will fit your Energiser charger.

Nicad batteries.