Rechargable batteries Vs Power supply

[ForHerDeadEyes]

I was about to buy a rechargable battery to use with my guitar..
But as I was reaching for it, I faintly remembered reading about rechargable batteries not being good for music, but.. I don't know, are they?

I googled for an answer, including the Sneap google search..
But didn't really find anything about it..
Just that a battery doesn't seem to keep a steady nor high voltage..

Would there be a downside to just connecting a power supply?
I mean soldering an external input for a power supply..

I think I remember reading that a active pup is actually made to be driven on 18v.. I could just get one of those supplies with adjustable voltages to find a good voltage..
I dunno..
Thoughts? Do tell!

 

[Mutant]

I was about to buy a rechargable battery to use with my guitar..

Why ?
IMHO using rechargeable batteries only makes sense in things like digital cameras which will go through a set in like 1 day or even just few hours if you are a pro photographer.
A good brand normal battery will work for at least a month in your guitar.

Would there be a downside to just connecting a power supply?
I mean soldering an external input for a power supply..

Power supplies can give you "dirty" power polluted by everything you and your neighbors have connected to the grid (electric drills for example).

I think I remember reading that a active pup is actually made to be driven on 18v..

Yes they will sound better at 18V.

 

[ForHerDeadEyes]

Thanks for the answer!
Ah, didn't know that other stuff connected could pollute the power..
It's just that a rechargable battery would be better for the enviorment, you know that it's charged and it's re-usable.. and yadda yadda yadda..
But I guess it's not worth it then