Power

[Martin59]

Hi, I want to get an air fryer for my camper van, I’ve got 2000w inverter, 100ah lithium battery with solar panels on top how long could I run the air fryer for on that.


Regards Martin

 

[Martin59]

Hi, I want to get an air fryer for my camper van, I’ve got 2000w inverter, 100ah lithium battery with solar panels on top how long could I run the air fryer for on that.


Regards Martin

It’s a 900w air fryer

 

[Boldly]

900w is about 70amps @13v so after an hour your battery would be 70 per cent discharged. Not allowing for solar, conversion inefficiencies and any other power use.

 

[Martin59]

900w is about 70amps @13v so after an hour your battery would be 70 per cent discharged. Not allowing for solar, conversion inefficiencies and any other power use.

Thanks for your help, it will only be on for about 20mins so hopefully the solar will top in back up after a while

 

[cyberyacht]

1Kw on a single 100Ah battery is going to give it a hard time. It would be kinder to increase battery supply to 200Ah. I've got two 120Ah Lithiums and running microwave, toaster and the kettle (not at the same time!) certainly gives them a good workout.

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[headlight]

Thanks for your help, it will only be on for about 20mins so hopefully the solar will top in back up after a while

And for half that time it won't be taking 900 watts as only the fan will be running, say around 30watts, as the heating element cycles on and off.
My air fryer is 1400 watts, it runs for one minute drawing 1435 watts then one minute at 35 watts (only the fan running) then one minute at 1435 and so on.
So it uses roughly half of its rating due to the heating element cycling on and off.
Without the cycling mine would use 30 amps in 20 minutes when in fact due to the cycling it actually uses about 15 amps for 20 minutes run time.

 

[royw]

1Kw on a single 100Ah battery is going to give it a hard time. It would be kinder to increase battery supply to 200Ah. I've got two 120Ah Lithiums and running microwave, toaster and the kettle (not at the same time!) certainly gives them a good workout.

The hard time is not related to the capacity in the slightest 100ah or 200 ah makes zero difference. What makes a difference if a larger capacity battery with higher rated bms is used or 24v or 48 volt is chosen then the current required is halved or quartered thinner cables etc A good 100 ah battery with the right bms will work quite well, its then down to solar, b2b or mains to replace that energy used ready for the next time. The more solar you can fit the better, it will offset the consumpiot if during the day. A shunt is recommended and a true SOC would then be available. some bms such as jbd fitted in fogstar has a higher current trigger point for capturing discharge at .7 amp where as Roamer is .4. but victron shunt is .1 so will always be more accurate. Fogstar is a popular brand but for better quality better BMS Roamer is a very good step up.

 

[Martin59]

The hard time is not related to the capacity in the slightest 100ah or 200 ah makes zero difference. What makes a difference if a larger capacity battery with higher rated bms is used or 24v or 48 volt is chosen then the current required is halved or quartered thinner cables etc A good 100 ah battery with the right bms will work quite well, its then down to solar, b2b or mains to replace that energy used ready for the next time. The more solar you can fit the better, it will offset the consumpiot if during the day. A shunt is recommended and a true SOC would then be available. some bms such as jbd fitted in fogstar has a higher current trigger point for capturing discharge at .7 amp where as Roamer is .4. but victron shunt is .1 so will always be more accurate. Fogstar is a popular brand but for better quality better BMS Roamer is a very good step up.

 

[Martin59]

I have this fitted

 

[royw]

I have this fitted

the 30 amp. is becoming more redundant due the the far superior orion xs. providing 50amp, if the alternator is not up to 50amp draw it can be dialled back to a lower level, benefit is the supply is more likely to be constant that the 30 amp model which is well known to overheat and throttle back to 18 amp or less.