Batteries

[Ornery]

As for WHY rechargeables aren't used in the Music Business...

Nobody even asked! WTF does "mission critical" applications have to do with the OP's topic at all?

 

[lokiju]

I almost always get Rayovac just because you get more for less and they seem to last just as long.

 

[OutHouse]

I buy only Kirkland batteries at Costco.

Belive it or not but the kirkland AA lasts 6 days longer in my skytel two way pager than a duracel or energizer battery.

 

[jonnyGURU]

It's very obvious that some batteries last longer in some devices then others and vise versa. It really depends on the practical capacitance of the load put on the battery.

In a contraption like this you can adjust the load you put on the battery or batteries. But it's a capacitance load. So if you mix the brands of batteries, you'll find that some put out a higher voltage than others under the same load.

In the picture, you can see there's some Duracells and a couple generic battery. The Duracells put out 1.5879V while the generic only put out 1.5544V. The end result is that with a 149.7mA load, the Duracell lasted 338.8 minutes, while the generic lasted 384.1! So in a flashlight, the generics actually lasted longer. But in something like an MP3 player where the load is lower, the Duracell may last longer.

Pretty neat.