Forum Discussion

ekyyc7's avatar
ekyyc7
Explorer
Nov 24, 2015

Amps/Watt draw for a microwave and any heat element

I am trying to size a battery bank for my 5th wheel.

My understanding is that anything with a heat element (ie, microwave) uses some amps purely just to start AND then more for continuous use.

Does anyone have any guides that show the average draws from heat elements for starting and running?

Thanks

15 Replies

  • ekyyc7 wrote:
    I know I can look stuff up genius...pointless answer.
    Then why are you asking us?
  • 2oldman wrote:
    I don't know.. you can look that up. They use about as much as air con, and you need at LEAST 4 big batteries.

    And I don't think Mw's have a heat element.



    They do have a heat element.

    I know I can look stuff up genius...pointless answer.
  • We survive for two to three days with 4 batteries when boondocking. We are gourmet cooks and use a variety of cooking appliances including electric BBQ grills, convection oven, Kitchenaid mixer...etc. Our microwwave is a 1200 watt; I don't know the amps.

    I didn't worry about the power we use, I just went with 4 batteries because that's what everyone else seemed to be using at the time 20 years ago when we setup our 5th whell. Two batteries supply power to the normal 12v stuff and the other two provide power to the inverter. I can kick in all 4 batteries if needed through the remote control panel for the inverter.

    I also carry one or two 2000i Honda generators to use for charging the batteries, running the air conditioner (using the 2 generators) or if we need to run several hi-draw appliances at the same time. Like for Thanksgiving Dinner.
  • I don't know.. you can look that up. They use about as much as air con, and you need at LEAST 4 big batteries.

    And I don't think Mw's have a heat element.