12v DC pump to generator... what's needed?

An inverter or a transformer depending on the current draw of the pump. If it is 12V it is probably pretty small and won't draw much current...chances are pretty good your generator has a 12 volt batter charger incorporated in it...it may be big enough to run a 12 volt low draw appliance....but it depends on the pumps startup current. If not an inverter or transformer will turn the trick....

Make sure the generator doesn't already have 12VDC output, mine does. Also, what is the brand/model pump? If you are running something like a Shurflow Pump, you are going to need a capable 12VDC power supply. I'll tell you for certain, those little 12VDC pumps draw some current and cheap power supplies don't run them for long without setting off their cuurent or thermal protection. I made a power sprayer out of the Shurflow pump I had for the water/methanol injection system on my truck and I had to use my Pyramid 50A 12-15VDC power supply to run it. Those aren't cheap.

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Some of those battery chargers will not allow you to draw power from the battery while charging. If you decide to go this route, make sure you get a charger that can.

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I've used this set-up on my old camper for a few years, since something went wrong with the inverter. For some reason the 12 volt battery has to stay charged for the A/C to work, and it constantly pulls from the battery when the A/C is running, even when connected to AC power. I hooked up an old Schumacher charger to the battery, and it's always worked just fine. The Inverter was going to cost 150 bucks, I think I bought that charger at a flea market for 10, probably 30 years ago.

you probably have a AC/DC converter if you have chargers around the house...
depends on the draw...doesn't hurt to plug one in and hook it up...


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