Jack.Straw
Member
I have the Max713's on the way. Thanks for all the help!
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A battery with a higher voltage does not increase the battery operating time.
The increased heat from a higher voltage is simply wasted. With fewer battery cells the amplifier will sound the same and the battery will last as long but the entire battery is smaller and lighter.
A 9V Ni-MH battery is too small to power a 1/2W amplifier for more than an hour. At continuous full power output a charge on the the little battery will last 15 minutes. Six AA Ni-MH cells make 9V and a charge will last for a week or two.
The cells inside a 9V battery are tiny AAAA ones that last for only a few minutes. AA cells are much larger so they last for hours.AG, i was shopping for the batteries and came back to re-read the thread because i could only find 1.2v AA's. The info above seems to be conflicting. Is a battery pack made from AA's going to provide longer play-time than a 9v? If so, should i do 8 of the 1.2v (9.6v) instead of 6?
Awesome... so if there isn't any noticeable difference i can go with 6 cells and save $$ on batteries.
I do notice the sound difference as the 9v (not rechargeable) degrades. The volume level at which the sound starts to distort becomes lower.
Are you sure that level won't be significantly lower, or happen sooner, using the 6 cell pack instead of the 8?
Thanks again AG.. i really appreciate your time!