Car Battery Alternative

[grokuk]

Hello All,

I'd appreciate some advice and your patience at my lack of knowledge of things electrical. The situation I have is I need to run a diesel pump that is designed to run off a standard car battery but I'm not using it to pump diesel or do it anywhere near a car. I would like to have some form of transformer to power it off the mains.

I have a little 12v 0.5amp transformer for light electrical items which clearly doesn't do the job - I'm assuming it's the very low ampage that's barely turning the pump over. I'd really appreciate some recommendations on the kind of transformer I'd need to essentially reproduce the output of a car battery.

Many thanks.

 

[Paul.M]

Welcome to the forum grokuk.

Leaving this thread in the general section but please treat it as a DIY question & member. Thanks.

 

[telectrix]

hello all,

i'd appreciate some advice and your patience at my lack of knowledge of things electrical. The situation i have is i need to run a diesel pump that is designed to run off a standard car battery but i'm not using it to pump diesel or do it anywhere near a car. I would like to have some form of transformer to power it off the mains.

I have a little 12v 0.5amp transformer for light electrical items which clearly doesn't do the job - i'm assuming it's the very low ampage that's barely turning the pump over. I'd really appreciate some recommendations on the kind of transformer i'd need to essentially reproduce the output of a car battery.

Many thanks.

you need to find out what current the pump draws. Then you can determine the size of power supply you will need. POST YOUR LOCATION AND ONE OF US MAY BE CLOSE ENOUGH TO ADVISE.

 

[ruston]

What exactly are you going to pump,and what is the load?

 

[grokuk]

I'm pumping wine from one very large barrel to another. The pump details are:

Test Voltage: DC 12V
Motor Racing Speed: 8500r/min
Motor racing current: 0.3A
Pump running current largest :6.4A
Flow rate: 30L /min
Pressure head: 2.5M

If that helps. Not sure what's meant by the load?

 

[Adam W]

'Thinking outside the box' is a nice cliché for a job interview or an episode of The Apprentice but can cause problems when it comes to electricity.
What is it that you're actually trying to do? Chances are someone has done it before and there is already a way of doing it without you having to guess.

 

[Lucien Nunes]

Typical portable 12V fuel transfer pumps require something in the order of 15-25A; post the spec of your pump.

 

[Deleted member 26818]

The cold cranking amps needed to turn over and start a Diesel engine are quite high.
Probably be cheaper to use a battery with a trickle charger.

 

[DPG]

The cold cranking amps needed to turn over and start a Diesel engine are quite high.
Probably be cheaper to use a battery with a trickle charger.

He's not starting a diesel engine. He's running a pump. And not for pumping diesel anyway. Daz

 

[Adam W]

He's not starting a diesel engine. He's running a pump. And not for pumping diesel anyway. Daz

Who knows what he's doing? He's trying to get a diesel pump to work in a way it wasn't designed for, for a purpose it wasn't designed for, for reasons unspecified.
Solve for x.