I have a Canon A95 digital camera which takes 4 AA batteries. I am cuious as to whether or not I could use equivalent sized Lithium Ion rechargable batteries in it (14500 I think). Alternatively, maybe NiMh with slow discharge rate. I have seen the Sanyo Enelopes mentioned here and there. Are there any other brands I should consider? Up until now I have only used the Energizer NiMh batteries, some 2500 and some lower. I only have an 8 hour charger I got at Best Buy and maybe that is part of my problem too. When I pull the batteries off the charger I get one of two things: They won't even turn my camera on, or they will take like 6 pictures. Very frustrating! These are not old batteries (20 cycles or less) and I have exchanged the charger twice already. Help!