Need a test power supply

..Brian..

I need a power supply I can plug into the mains and supply 12 and 24v DC. I'm sick of having to run extension leads out from the garage workbench to the bus/car battery when I'm testing or working on components at said bench. Even when I'm working on the vehicle (like today, tail lights) it's hassle as the batteries are up the front and so far away!

After a quick Google I think I'm looking for a benchtop power supply? But I only need it for 12 or 24v applications. Is such a thing common / available / reasonably priced?

colm_mcm

A car/truck 12/24v battery charger is what I want used to use (rightly or wrongly!)

..Brian..

Hmm, I have one of them sitting under the bench here. Any risk of burning out the component somehow?

OldMrBrennan83

This post has been deleted.

colm_mcm

..Brian.. wrote: »

Hmm, I have one of them sitting under the bench here. Any risk of burning out the component somehow?

I never broke anything, but it's unlikely we have the same charger! (Mines from the 80s)

whizbang

Most modern battery chargers wont power up the output until they sense a battery connected. You can get around this by connecting any small battery to the output, and use

Older units will often have a very high Open circuit voltage. I have a 12v here reads 19v.
Also can be sorted by connecting a battery to it.

Power supplies Here

dieselbug

Not really sure what you are looking for but does this fit the bill.

Very long leads if that's what you need.




https://www.powerprobe.com/hook-page

RandomUsername

What kind of current are you looking to draw ? You might get lucky and find an old laptop etc power supply to do the 12v I've a old satellite box power supply that has an 14v 4a output that I've set aside for similar. The 24v would be harder to find

colm_mcm

Or just buy a cheap car battery or two. Or a 12v lawnmower battery