Induction cooktop & inverter

Komang

Active Member
Hi guys
Anyone have setup their 4x4 with induction cooktop with DC AC converter? As it look safer with no open fire.
Thanks
 

smitty_r51

Well-Known Member
Also be aware they get bloody hot and stay hot for a long time after...the whole doesn't get hot to the touch is if you leave it on with no pan on... Soon as you cook on it it will be as hot as a gas or electric surface.
 

Komang

Active Member
You are going to need some serious battery reserves to run one and carry induction friendly cookware
Yes bro alby, i do read rate power for this induction cooktop very big. Might need bigger AH battery with additional solar panel.
 

Komang

Active Member
Also be aware they get bloody hot and stay hot for a long time after...the whole doesn't get hot to the touch is if you leave it on with no pan on... Soon as you cook on it it will be as hot as a gas or electric surface.
Hi Smitty, yes that one thing to concern for the heat from this unit probably need more attention.
 

Albynsw

Well-Known Member
I personally don’t think it is a good option unless you have a powered site or a genie ( and a caravan)
I think you are exposing yourself to a lot more potential danger running a 240 v appliance than a gas cooker
 

Triton14

Well-Known Member
You are going to need some serious battery reserves to run one and carry induction friendly cookware

Not only that your going to need a seriously big inverter as well.
Seeing as most units are between 1000W/2200W


Also be aware they get bloody hot and stay hot for a long time after...the whole doesn't get hot to the touch is if you leave it on with no pan on... Soon as you cook on it it will be as hot as a gas or electric surface.

Not quite correct, true induction cookers are different to just glass top cookers.
They are magnetic field based & you could actually put a sheet of paper in between the pot & the stove & not burn the paper.

Sure they may burn your hand if to put your hand on it straight after removing the pot but they do cool way quicker than traditional cook tops.

It will take way less time to cool over an element or even the meta surrounds of a gas stove!

 
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Komang

Active Member
Hi Triton,
Yes i do see them will draw lots power. But it worth it to have one on your 4x4 or not it still an issue for me. You have see my post about the aux battery in my ranger it only 80AH.
Do I need change the whole system to accomodate this induction cooktop. Or just leave it as it the stove burner still good enough for me.
Thanks
 

discomatt

Well-Known Member
We are going to get one for the new van because it only has an outdoor kitchen, heaps of caravans now use them.
BUT we do have 380 amp hours of lithium battery , 560 watts of solar and 2000watt inverter, not your average camping 4wd set up
 

Komang

Active Member
I personally don’t think it is a good option unless you have a powered site or a genie ( and a caravan)
I think you are exposing yourself to a lot more potential danger running a 240 v appliance than a gas cooker
Yes bro 240vAC will be deadly. But the issue is mrs get scared cooking with gas bottle. So I have to do all the cooking :)
 

Komang

Active Member
We are going to get one for the new van because it only has an outdoor kitchen, heaps of caravans now use them.
BUT we do have 380 amp hours of lithium battery , 560 watts of solar and 2000watt inverter, not your average camping 4wd set up
Lithium 380AH thats will be the killer for you mate.
 

Triton14

Well-Known Member
Hi Triton,
Yes i do see them will draw lots power. But it worth it to have one on your 4x4 or not it still an issue for me. You have see my post about the aux battery in my ranger it only 80AH.
Do I need change the whole system to accomodate this induction cooktop. Or just leave it as it the stove burner still good enough for me.
Thanks

You really have to think about cost of set up overall to the end gain.


There are calculators around to work out how long your 80AH will last with what the draw is.
I would look at that before doing anything as you may not be able to scramble an egg at the end of the day :p

If your talking about a caravan then different story, they can be set up to run lots of appliances, if your talking about going camping then imo gas & woodfire camp ovens win

Mate I am a chef by trade & I dont do away to take the city with me, simplicity is more often the better path.

Mind you I am still getting my dual battery set up going, out of anything I would like to have in the middle of nowhere is a nice cup of Nespresso.
So apart from the usual essential 12V power/charging needs thats all I need to include, just a nice coffee a couple of times a day ;)
 

Lost1?

Well-Known Member
With the power draw from an induction cooker alone I don't think a 80AH battery of any chemistry will cut it. To cook dinner and run a fridge overnight in Northern Australia, possibly run some work lights for a couple of hours at night around camp will take a bit of battery power. I a thinking minimum of 220AH lithium battery power would be close to what you need. To recharge those batteries when static for a day or two you would probably want a 300W Solar panel. Plus a 50A BMS to manage the batteries. Lithium batteries with the discharge and charge profile you are looking for will cost around $2000-3000, plus a BMS will be in the $500-1200 ball park. The BMS cost will depend on the level of functionality you want from your system. If you can wire this up yourself then add another $400 for materials such as fuse blocks or circuit breakers, crimps and cabling etc. Or add another $800-1000 to pay someone to do the job for you. If you choose the DIY path, don't get this part wrong. The next 4WD to catch fire due to a dodgy wiring job won't be the first. Having 1200 W of power coming out of your invertor in a steel chassis is another risk to consider. Especially if you get caught in a storm whilst cooking.

Looking at the above cost, a gas bottle doesn't seem so bad. Just make sure the gas fitting is tightened up properly and have a restrictor on your gas hose to limit the gas pressure into your burners and you are safer than what you are planning. I have done remote solo trips of 3-4 weeks duration with a 4kg gas bottle and 6 propane cans. Plus the occasional campfire where permitted. Gas is a safe method of cooking, you just need to make sure everything is hooked up properly and your gear is serviceable. Google "testing a leaky barbeque". This can be done using common stuff you carry when travelling remote. Good Luck
 
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Triton14

Well-Known Member
Suddenly a $150 double burner lpg gas stove looks a whole lot more attractive now I bet than an over complicated & very expensive build for what is essentially a 240v household appliance. Camping is not city living!
 

Petunia

Well-Known Member
Thought, research, calculation, then feasibility study.

Induction cooker :- up to 2000 watts? maybe/likely less? but lets work on the worst case.

2000watt Inverter :- There is peak watts and run watts, items can have a peak for a short period, but run consistent at lower than the flashy number printed on the box? So? Will a 2000watt inverter run a 2000watt cooker?

A 1000watt inverter will run on cable the size of your little finger, a 2000 needs close to the size of your thumb.

How much Ah ? Well the ball park is divide AC watts of the appliance by 10 to get DCamps draw, therefore 2000 divide by 10 = a massive 200 amps dc?????? Sounds horrific, don't it? At the least it could be as low as 160/170 amps as calculations of dc/ac vary.... and yes I don't give a rats ring about inefficiency or losses.[remember, I DO NOT let my tyres down!]

Next, cook time? 10 minutes? or half an hour? Lets pluck 15 minutes out me ****[insert sound fx], and go with it. That's one quarter hour, remember Ah from above? Well that's amps per hour. From the previous rubbish I plucked out me ****, we need 200 amps per hour divide that by 4 for 15 minutes, bingo 50Ah used to cook for 15 minutes? On hand we have one 80Ah battery minus 50Ah in fifteen minutes, and I predict we are going to be in tears, today or tomorrow.

One can work forward and backward to estimate the battery capacity/solar/battery/angst/or tantrums ... oh solar .... yes ... one just destroyed 50Ah in fifteen minutes, no matter if we have 80 or 800Ah battery, it needs to be put back. So? The solar needs generate 50 amps over 1 hour of ''peak'' sunlight or 5 amps over 10 hours of peak sunlight. A 120watt panel may max out round the 7amp mark [again insert sound fx, I plucked that out me ****] great, 10 hours of peak sun? no ! ....... Lets pluck out 5 to 6 hours 9am to 3pm? Six sevens are 42, close enough, six by 120Watt panels makes.... [lets just buy a freakin gas bottle, or go the pub]

Disclaimer:- I plucked some or all out me *****, I don't care about totally technical b&s of units per hour per hour, losses, mppt, lithium charge rates, zebras crossing the Zambezi river, it's not needed when the feasibility study get screwed up and binned after all that twaddle. :cool:
 

Poppa

Well-Known Member
[lets just buy a freakin gas bottle, or go the pub]
Komang mate, I can't say I know anything regarding the technical details of what you want but I do know the above statement just about sums up all the advice you have been given. These blokes know stuff about tanks if you get my meaning.
 

Komang

Active Member
Yeah all for good mate at the top comment. Thanks
Prob I will stay with gas for this time till have more spending money to do the upgrade :) Or try to walk away from cooking job.
 
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red hilux

Well-Known Member
Pat Cal's new amarok build has 4 lito batteries to a 3000w inverter. He has a 2 pot induction cook top and a coffee maker.

His idea is to be gas free

I do like the idea TBH, obviously he is sponsored and has some coin in his pocket. Rules me out


 
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