Voltage Regulator (need a quick question answered)

[BP-Revo]

Mine's only 1100mah, but on a 600mah NiCd pack my radio lasts a good 5-6 hours.

My radio starts complaining at me at about ~9v (somewhere around there). Its a constant beeping, so its quite noticeable (and annoying!). To be completely honest the biggest reason I'm switching is so I can quickly charge the pack if its low. The NiCds can only be charged by a trickle charger that came with the pack (due to plug conflicts - I can't plug em into my Ice). I'll be wiring a deans to the battery though, and if it ever runs out - I can quickly charge the majority of the capacity in an hour.