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Re: Portable Power

Subject: Re: Portable Power
From: "Rich Peet" <>
Date: Thu, 03 Mar 2005 21:59:03 -0000
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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