RV converters and amperage draw

[Ray,IN]

I often see this topic brought up and found what I think to be the complete explanation and a table of amp draw for both AC and DC appliances.
RV Converters and Amp Draw - RV Information (RV Maintenance) Hopefully this will be a useful resource for forum members and guests.

[Dadeaux]

Good information I saved it onto my hard drive.

[frankdamp]

It's actually pretty simple. Whatever current an appliance draws on 120V, it will draw 10x as much on the dc side of an inverter with a 12V input. There may be a bit more on the 12V side if the ac device is not pure resistance (e.g. an electric motor) due to indiuctance and power factor.

If you work on the basis that the 12V draw will be 12x the 120V draw you'll cover most devices. Look at the label on your electric blanket, CPAP machine, fridge or whatever and multiply the amps by 12.

1200 watts on 120V is 10 amps. On 12 V it's 100 Amps. In other words your toaster or coffee maker will make a big dent in your battery capacity.