Do I need a DC to DC regulator? (1 Viewer)

hdpete

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Jun 28, 2011
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Hi,

I have a 12v DC 25ah battery which I want to run a device from. The device's existing PSU is rated at 12v output at 12 watts.

Do I need a DC to DC regulator to run this device for approximately 10 hours to provide a stable voltage, or will it be OK to connect it directly to the battery?

Regards
Peter
 

hilldweller

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Dec 5, 2008
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No-one can answer that question accurately.

Your "12v" supply will vary from a low of 12V to high of 14.6V with possible spikes of 150V+ when you press the starter.

Generally referred to as "automotive supply".

If there is any doubt your "device" can stand this harsh treatment then buy a regulator. I guess it also depends on the value of your "device".
 
Apr 27, 2008
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How about a competition to guess the 'device'. It must be something embarrassing not to name it.:ROFLMAO:

Electric can opener for Fray Bentos pies perhaps.

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rainbow chasers

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Oct 30, 2009
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You need a voltage stabiliser - about £30-40, which will allow the devide to run and remove spikes etc. Common brand are Amperor available from places like snellyvision online.
 

BriantheSnail

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Sep 21, 2010
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Don't know where you get spikes from when using a battery.

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