Couple of questions about (rechargeable) batteries

[yetanotherlogin]

Hello

I use a Tascam DR-40 to record conferences, and have a couple of questions about batteries (it uses three AA's):

1. Will a set of 2,450mAh batteries last significantly longer than a set of 2,000mAh batteries when recording in 16-bit WAV instead of MP3?
2. Why do rechargeable batteries use 1,2V tension instead of 1,5V?

Thank you.

[aedipuss]

if you can find them get the nimh batteries that are low self discharge while resting. normal rechargeable nimh batts lose up to 5% of their energy everyday. i use sanyo eneloop whenever possible.

different chemistry in the batteries cause varying voltage.

[yetanotherlogin]

Thanks for the tip.