Question on 9Volt batteries.. about mah and voltage

[Luminette]

I'm trying to pick out my rechargeables for my sr-71

and I can't tell the difference between

9.6V 230mAh Rechargeable NiMH Battery

and

8.4V 300mAh


Mostly because I'm completely ignorant about these things. The confusion comes from the 8.4 one being priced a little higher than the other.. what i can piece together, i'm thinking still that the 9.6 voltage is going to run my amp better... i certainly wouldn't want to be undercutting it on the power... but i have no idea what mAh even means.. gAh!

the only other concern after getting enough power is the battery life.. maybe that's related to mah

help!

 

[appophylite]

You probably don't have too much to worry with the 8.4 V cell under-powering the circuit. As to the the mAh rating, a higher rating means you'll get a longer life out of the cell. For example, a circuit that only needs 2 mA will get 115 hours of use from that 230 mAh cell whereas it will get 150 from the 300 mAh cell. I might have mixed that up, but I believe that is the gist of it.

 

[terrymx]

I've used 9.6v vs 8.4v and i must say the sound quality difference was substantial. I was using it with a GRado RA-1 and the 9.6V elimiates all the sharp and fatigue, a night and day difference. Highly recommend getting the 9.6v if you can. It seem to provide better current output which is why it has lower battery life.