Want to Power an Electric kettle using an Inverter? Read This

If you have an off-grid power solution for your low-power electrical needs in the RV or remote cabin, you may want to add additional appliances, for example, an electrical kettle.

Now an electrical kettle like many other heating appliances can be a power hog, and often requires a large inverter battery system.

Is it worthwhile running a kettle off an inverter? Is it safe to do and what size of inverter should you use?

This post looks at whether you can power an electric kettle from an inverter, the risks faced when doing so, how to mitigate them, and provides an example of a battery inverter setup you can use to safely power an electric kettle.

Can You Use a Kettle on an Inverter?

Yes, it is possible to power an electrical kettle off an inverter. Keep in mind though that a kettle draws a large amount of power.

The inverter battery system should be appropriately sized to accommodate the kettle and any other appliances planned to avoid damage to the inverter or battery.

What Inverter size (watts) to Run an Electric kettle?

Inverter Size (watts)

This depends on the power consumption (watts) of the electrical kettle. Once you establish this, you’d select an inverter that is capable of providing much power (electrical kettle power consumption) and at least 20% extra capacity so that it is not running at 100% of its rated power.

Note: Surge power draw does not apply to electrical kettles – they are resistive loads.

Battery size (Ah)

In addition to the inverter, you need to select a suitably sized battery bank either AGM or LiFePO4 for the electric kettle.

Do not exceed the recommended maximum continuous discharge current or else you risk damage to the battery.

(Consult the battery technical specifications guide for the maximum continuous discharge current )

Battery to Inverter DC cables (AWG)

An electrical kettle can easily draw 80 – 100 amps or higher from a 12 V battery bank depending on its wattage.

Make sure you use battery cables of a large enough gauge to safely handle the large currents.

Use this table below as an indicative guide for AWG cable size to use with based on current s handled. (Put alongside the kettle watts)

Inverter CapacityMinimum cable size, 3 ft Minimum cable size, 6 ft Minimum cable size, 8 ft
1,500 watts/ 12VAWG
2,000 watts/12VAWG
Source: Samlex Inverter Manual

An example of an inverter battery system to use with an 800 watt/115 V electric kettle

  • 12V/1000 watt inverter can be modified sine wave or pure since wave
  • 2 x 100 Ah LiFePO4 batteries. Make sure the maximum discharge current is not exceeded. At 1,000w, the current draw for one 100Ah battery is 83 amp and is reduced to about 42.5 amps when two batteries are used.

Note: This is just one of several possible setups you can use.

Is it worthwhile using a power inverter?

In my opinion, if the battery-inverter setup is already available, then go ahead and use an electrical kettle.

Otherwise, investing in a gas stove is likely more affordable and gives the added benefit of being able to prepare and enjoy several dishes with longer cooking times, unlike an inverter-battery solution.

Can a 1,500 watt inverter Power an Electric kettle?

Yes, a 1,500-watt inverter can power a 1,200 watt electric kettle or smaller. You may be able to use it to supply power to kettles with a power consumption as high as 1,500 watts but this is not advisable as you’d be running the inverter at its maximum capacity.

Additionally, some inverters can only handle maximum power for a limited period before they shut down.

Related questions

#1. What Size of Car inverter to power an Electric kettle?

You could use a 1,000 watt inverter to power the smaller 650 – 900 watt rated kettles.

To be able to handle the associated high current draw of 54 -75 amps, hardwire the inverter to the battery and preferable use an auxiliary battery to prevent draining the starter battery.

#2. Is there a Low wattage Kettle to use with an Inverter?

Yes, there are lower power rated electric kettles that consume as little as 650-900 watts. Using them allows you to use a smaller capacity inverter and lowers the current draw from the batteries.

Alternatives to Powering an Electric kettle from an Inverter

You can also use a gas hob to prepare a cup of tea or coffee. The investment with a gas hob can be considerably smaller when compared to investing in a battery bank with an inverter solution.

The gas hob has the added advantage of being able to cook a variety of dishes simultaneously with longer cooking times without worrying about the battery being drained.

Final Thoughts

You can use an inverter to power your electric kettle. Ideally, select an inverter with a larger capacity (watts) than the kettle rating (Watts) to avoid running the inverter at its maximum capacity.

This increases the risk of failure of the inverter.

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