Sorry if this has been covered elsewhere but I could not find an answer when I searched: how does using rechargeable AA batteries stack up against NB-2L/NB-2LH batteries? My situation is this: I have a Targus TG-BGXTI battery grip. I have no NB-2L batteries because Canon lost the one I sent when my XTi went in for repairs. Should I just use AA batteries or is it worth it to buy the battery packs? Any recommendations on rechargeable AAs (I have a bunch of Energizer rechargeable 2500mah AAs here)?
I'm new to this camera so I don't know how long it will last with 6 AAs vs the battery packs.
Also—what's the difference between NB and BP batteries? They seem electrically compatible and indeed my NB-2LH battery worked in my old Canon ZR camcorder. I ask because I have two oversized extended life batteries for the camcorder that don't fit in the XTi body or battery grip but am wondering if there is any way to use them, since I already have them and they have great battery life.
Please forgive me for any stupid questions and set me straight as I'm new [to posting] here.