Will I be able to use rechargeable AA Duracell batteries on my Nikon Coolpix l120 camera?

The description on the batteries: AA/HR6/DX1500/NiMH 1, 2V/2000 mAh. I am wondering if the batteries do something bad to my camera. Thank you for the help.
Added (1). I meant to put 'if the batteries will do something bad.'
>>> Will I be able to use rechargeable AA Duracell batteries on my Nikon Coolpix l120 camera?

How long can my camera battery film for?

I own a Nikon Coolpix P500 and the battery that came with it is a Nikon Lithium Battery Pack EN-EL5 3.7V 1100mAh. I have no idea what any of that means but I was wondering if this battery would be sufficient enough for me to film for 12 straight hours on. I also need to know what memory card I would need and how many GB it should have. Or is the Nikon P500 even capable of filming for that long? Any information would be helpful. Thanks in advance!
Added (1). AVDADDY, thank you so much for you kindly worded advice.
>>> How long can my camera battery film for?

Video Settings For Nikon Coolpix S9300?

I have a nikon coolpix s9300 and i really don't know what video settings i'll put to have an HD video? can someone help me?
>>> Video Settings For Nikon Coolpix S9300?

Blurry background on a Nikon Coolpix L105?

How do you do it?
>>> Blurry background on a Nikon Coolpix L105?

Singing Voice sounds childish when recorded?

Whenever I sing is sounds good. REALLY good, it sounds almost identical to taylor swift, i don't wanna sound stuck up, sorry.but whenever it's recorded on my coolpix camera it sonds whiny and young.Is that what it sounds like to everyone else because it is SO different ??? i am a 14 yr.girl. ( also my voice just talking sounds wierd on camera, too )
>>> Singing Voice sounds childish when recorded?