That 150w draw is the max draw. Unless you're using something that needs that much power it's not going to draw that at all times. Especially if what your planning on running is a pump like that with such a small draw.

 

It'll blow the fuse before it hurts anything.

 

I see. So it’s safe to get the 150W inverter but not max it out?


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Exactly. Take the number of watts output you need and divide by 0.85 for an estimate of how many watts input it will require.

So if you want to power a 50W device, the inverter will use about 50/0.85=59W, regardless of it being a 100W inverter or a 500W inverter.

 

Ok thanks!


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Unrelated, but for hybrid models you can mount this right in the trunk to get 1200W (or more)

 

Unrelated, but for hybrid models you can mount this right in the trunk to get 1200W (or more)
View attachment 422822

Just be aware your not supposed to go above 20amp draw on the hybrid.

 

It's supposed to be 300w or 20amps. This is the largest recommend draw for aftermarket stereo systems ect. Not to say there aren't people running much larger draws, just the recommended.

 

Venturing out into the Prius forums it looks like people are pulling about 50-100 amps so a 1000 watt inverter seems to be the max. With the car in "Ready" and not driving.

 

Just don't go above what the circuit is rated for. Don't replace a 20Amp fuse with a higher amperage fuse. The wiring will fry and other vehicle components may become damaged. Could always install an Auxiliary Battery (2nd battery) to eliminate the concerns.

 

It's not rocket science to find a spare fuse position constant or key-on and add a fuse tap and your own wire. Car mfg's spec a fuse and that wire is sized for that fuse. They made the guy that thought of that a VP. He saved them $5 a car. I install a specialized type of aftermarket equipment in cars ( not radios and DVD) and I can tell you that Toyota is using CAT5 sized wire all over the car. We can't even use a red tap, it's too big for the wires, we have to solder.
Having said that 150W inverter is what it puts out max. It is using 200-250W to do it's job. A 25W pump, find a 100W sine wave inverter. And just nosey and curious, are you taking your aquarium on a road trip? Ok, seriously is this for a medical device? If yes you need to have a dedicated circuit with an auto reset circuit breaker hooked up to a main 12v supply wire. A good and free website to find wire info is The12volt.com It is a free wiring guide, as in where to find constant 12V or key on 12V for remote start and stereo. ( anyone know where to find Bulldog now?) I can look this up for you also on my company's install guide which is based on real world installs, if you want to run a dedicated line. And before anyone gets pissy about company info, a third of that content is from me.

 

It's not rocket science to find a spare fuse position constant or key-on and add a fuse tap and your own wire. Car mfg's spec a fuse and that wire is sized for that fuse. They made the guy that thought of that a VP. He saved them $5 a car. I install a specialized type of aftermarket equipment in cars ( not radios and DVD) and I can tell you that Toyota is using CAT5 sized wire all over the car. We can't even use a red tap, it's too big for the wires, we have to solder.
Having said that 150W inverter is what it puts out max. It is using 200-250W to do it's job. A 25W pump, find a 100W sine wave inverter. And just nosey and curious, are you taking your aquarium on a road trip? Ok, seriously is this for a medical device? If yes you need to have a dedicated circuit with an auto reset circuit breaker hooked up to a main 12v supply wire. A good and free website to find wire info is The12volt.com It is a free wiring guide, as in where to find constant 12V or key on 12V for remote start and stereo. ( anyone know where to find Bulldog now?) I can look this up for you also on my company's install guide which is based on real world installs, if you want to run a dedicated line. And before anyone gets pissy about company info, a third of that content is from me.

I can’t find a 100W pure sine wave inverter; the smallest pure sine wave inverter I’ve seen is 150W. Do you know of any 100W pure sine wave inverters on the market that I can buy?

I’m going to take a long roadtrip with my wife and baby, so we need a way to run her Medela symphony breast pump every few hours at rest stops in the privacy of our car. I actually solved this problem already by buying an OEM 12V DC car adapter for the pump, but I think an inverter would be useful for any other device we might want to power as well.


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