OK, so I just bought this MP3 player off Ebay. It is the Archos Jukebox 20. I bought it because the description said it can accept AA batteries. I look at the instruction manual and it says to only use the Archos rechargeable batteries, which are 1.2 volts each.
I am assuming that I can use the MAHA Powerex 1.2 volt rechargeables as well in this, as they are the same voltage.
My big question in this is can I use alkaline or lithium 1.5 volt AA batteries? Will I be doing any long-term damage to the unit if I do this? I have to use four of them in the unit; will the extra 1.2 volts (0.3 difference x 4) harm the unit?