Re: Converting something that runs on batteries...
From: GaryH (ghelfert_at_worldnet.att.net)
Date: 07/25/04
- Previous message: Guy Macon: "Re: Anyone know how to turn on an ATX power supply"
- In reply to: Greg: "Re: Converting something that runs on batteries..."
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Date: Sun, 25 Jul 2004 20:08:17 GMT
A good alkaline "D" cell has about a 14 amp-hr capacity. If the rocker can
run 14 hours
before it goes dead figure a current draw of 1 Amp.
I would go with the 1.8 amp, 6V ac/dc adapter.
"Greg" <ranger714@gmail.com> wrote in message
news:32fa9d56.0407201407.40dc3355@posting.google.com...
> deanbrnz@yahoo.ca (bigbossfan80) wrote in message
news:<a86dc8c2.0407030514.1cb40006@posting.google.com>...
> > I have a friend who recently had a baby. The baby always sleeps in
> > this automatic rocking thingy that runs on 4 "D" batteries(6 volts
> > DC). Because they use this thing at least 10 hours a day or more,
> > they are going through batteries like crazy!
> >
> > I want to do him a favor and convert it so that it runs on regular AC
> > power from a standard wall socket. I know that basically all I have
> > to do is buy a '6 Volt AC-DC Adapter', cut the connector end off,
> > strip some wire insulation from each end(+ and -), and wire it into
> > where the "D" batteries connect, making sure I match the polarity etc.
> >
> > BUT, my only question is with regards to amperage draw. My local
> > Radio Shack sells three different '6 Volt AC-DC Adapters', one is
> > rated at 1800 mA, one is 800 mA, and the other is 300 mA. Is there
> > someway that I can measure how many milli-amps this automatic rocker
> > thing draws? I have a Digital Multi-Meter and ASSUME that I can
> > somehow use it to measure the amperage draw, but am not 100% sure??
> >
> > Does anyone have any help or suggestions?
> >
> > THANKS!:)
>
>
> I've actually had the same idea with the baby swing we use with my
> 4-month-old daughter, but i've also been looking around at maybe a
> larger 6-volt battery that could run for weeks, and possibly recharge
> off of a seperate charger while the baby sleeps in her crib.
>
> Of course, we use her swing about an hour a day, but i've heard of
> some babies who just can't sleep in bassinets or cribs, but will sleep
> in a swing. Glad that isn't us.
>
> Also, the spring-loaded, wind-up type of swing generally last only
> about 5 minutes or so, and the ratcheting winder was painfully loud...
- Previous message: Guy Macon: "Re: Anyone know how to turn on an ATX power supply"
- In reply to: Greg: "Re: Converting something that runs on batteries..."
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