Thank you Adam - for your wisdom on this.
I suppose anything above 5V might be pushing it too far. And now if my
HiMD craps out some time in future, I will be left to wonder if it was
from the 5.6V I fed it on a few nights of recording.
Regarding the lm317T idea: I knew voltage regulators wasted some
energy, but I had no idea they could gobble up half of it.
I like your idea of using two series of 3AAs paralleled =96 centering
around 4V with either Alkaline or NiMH.
John Hartog
--- In "Adam Liberman" <> wrote:
>
> Hi,
>
> --- In "John Hartog"
> <hartogj_1999@> wrote:
> > The first times I tried it I used batteries that supplied
> > about 4.8V, but have gradually tried higher voltages up to 5.6V (newly
> > charged NiMH) with no noticeable problems.
>
> 5.6V is probably pushing it. You may not have problems initially, but
> could be reducing the life of the internal components. There's no way
> to tell by looking for problems. Generally, if you exceed the limits
> it will work for a while before failing, and if you exceed the limits
> too much it will just be destroyed.
>
> > For peace of mind, adding a voltage regulator would seem to make
> > sense. I plan to try the LM317 that Rich Peet mentioned.
>
> Just keep in mind that a linear regulator wastes power. So, if you
> feed 6V into it, and 3V out, roughly half your battery capacity is
> being wasted.
>
> You might try making a battery pack that holds 3 AA NiMH batteries.
> For longer run time, you could parallel two or more sets of 3 together.
>
> - Adam
>
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