According to the Mini MP spec sheet
http://www.apogeedigital.com/pdf/minimp_ds.pdf
...the power requirements are 6-14 V and 3W consumption. Taking the
worst-case voltage of 6V, that would imply a current of 0.5 A. (Geez,
I sure hope the preamp's worth all that current...)
Rich's example of 10 sub-C NiMH cells should power that preamp for 48
watthours/ 3 watts = 16 hours.
So Rich, what's your $5 solution for NiMH charging?
--- In "Rich Peet" <>
wrote:
>
> My recommendation depends on if you build anything at all.
>
> In general: amps X volts = Watts. Also amp hours of a battery (usually
> stated as mAh =1/1000 amps that it will give out for an hour before
> "going south" (this is a nothern US term to represent where things
> don't work).
>
> Few people other than the laptop people talk in terms of "Watt hours",
> but the concept works well for recorders too. 10 SubC Nimh batteries
> will give you 12 volts at about 4 amps. or a total of 48 watt for an
> hour. aka 48 watthours, note you want something around 10 for an hour
> of use.
>
> This is where the duct (duck) tape comes in, or shrink wrap. Solder 10
> Sub C cells in series to a connector and velcrow (Sp?) and you should
> be good to go for more than 4 hours on a charge. Build your own
> chargers for custom batteries are also an issue if you can not find a
> 12 volt battery charger for nimh cells I can also recommend a $5
> solution for that.
>
> search e-bay for "sub C nimh" and you will always get hits.
>
> Rich
>
> --- In "tm957904" <>
wrote:
> >
> > Hi everyone,
> >
> > Just a quick question. I have an Apogee Mini MP to use out for field
> > recording - great! But Im not sure the best way to power it. None of
> > the dealers or distributors have any idea either.
> >
> > The unit requires 6 - 14v (i think!) at 1 amp. What do you think
> > would be a good (cheap) power solution?
> >
> > Cheers, any advice is much appreciated!
> >
> > Steve Tunnicliffe
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