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Old 02-21-2016, 06:28 PM   #1
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Possible silly question-inverter,coffee maker

Hi
Might be a silly question but it strikes at the heart of what makes the wilderness wonderful in the morning.

Can I run my 900w coffee maker off of a 1000w inverter like

Amazon.com : BESTEK 2 AC Outlets 1000W Power Inverter with Battery Clamps and Car Cigarette Lighter Plug : Vehicle Power Inverters : Electronics
refRID=1TP6S45PJF981BMGMYAT

this without damaging my batteries.
Assuming I have the proper wires to it from the battery?

I have four large 6v golf cart batteries and I do have 3- 100w solar cells ti recharge them. We are talking about a national park situation here with a no generator area.
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Old 02-21-2016, 06:38 PM   #2
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Probably. The power advertised on inverters always overestimates what they are actually capable of handling. It won't damage your batteries, it will run them down fairly quickly since it's on the neighborhood of a seven amps current draw. When the batteries get low in power the inverter will shut off, so there is no danger in over draining them.
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Old 02-21-2016, 07:05 PM   #3
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Very simple solution: We have a coffee pot which is old school. Fill it up and put it on the gas stove and make coffee. We always have our Coleman Road Trip grille along with us. More often than not we use the grille to make coffee on.
This has never run our battery down.
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Old 02-21-2016, 07:12 PM   #4
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Should be fine with the right gauge cables to the batteries.

You will be pulling 75 to 80 amps from your batteries but only for 2 minutes, maybe.

You will use about 2.70 AH

You have about 225 AH usable.

The problem I found, was I have my coffee in the AM. By then the batteries are low from too much TV the night before.

In that case, I run the MH engine until the coffee is made. ( Does that count as a generator ? )
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Old 02-22-2016, 12:12 AM   #5
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I use a Keruig unit and it will pop my 200 amp circuit breaker leading to the inverter after about a minute.
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Old 02-22-2016, 12:21 AM   #6
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I use a Keruig unit and it will pop my 200 amp circuit breaker leading to the inverter after about a minute.
You have a 24,000 watt coffee maker? That must be pretty hot coffee!
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Old 02-22-2016, 03:00 AM   #7
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You have a 24,000 watt coffee maker? That must be pretty hot coffee!
That would be 2400 watts at 12 volts.

He was talking about the 12 volt breaker leading to the inverter .

To the OP,

A Keriug draws about about 1500 watts so that works out to 125 amps on the DC side.

Even with losses in the inverter, with nothing else on, the breaker should hold.

Could be a weak breaker or overheating due to small gauge wiring.
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Old 02-22-2016, 06:27 AM   #8
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Originally Posted by twinboat View Post
That would be 2400 watts at 12 volts.

He was talking about the 12 volt breaker leading to the inverter .

To the OP,

A Keriug draws about about 1500 watts so that works out to 125 amps on the DC side.

Even with losses in the inverter, with nothing else on, the breaker should hold.

Could be a weak breaker or overheating due to small gauge wiring.
Another point, my 2000 watt inverter suggests a 250 amp fuse.
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Old 02-22-2016, 06:36 AM   #9
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Quote:
Originally Posted by Kahoona View Post
Hi
Might be a silly question but it strikes at the heart of what makes the wilderness wonderful in the morning.

Can I run my 900w coffee maker off of a 1000w inverter like

Amazon.com : BESTEK 2 AC Outlets 1000W Power Inverter with Battery Clamps and Car Cigarette Lighter Plug : Vehicle Power Inverters : Electronics
refRID=1TP6S45PJF981BMGMYAT

this without damaging my batteries.
Assuming I have the proper wires to it from the battery?

I have four large 6v golf cart batteries and I do have 3- 100w solar cells ti recharge them. We are talking about a national park situation here with a no generator area.
The cables on that inverter look awful thin to handle that much load even for a couple of minutes.

I didn't see it in the description of the inverter, but for that price is has to be modified sine wave. That will probably be OK for a standard drip coffee pot that does not have a timer with auto function. Electronic controls like that frequently do not like MSW.

If you end up running your coffee pot from an inverter, brew the coffee and put it into a Thermos. Do not leave the pot on to keep the coffee hot or you'll run down the batteries.

A better solution is to do what LETMGROW suggests and get a stove top percolator for when you're boondocking.
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Old 02-22-2016, 07:04 AM   #10
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I would make sure you are covered by your fire insurance and have a "Go Bag" ready by the door.
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Old 02-22-2016, 07:20 AM   #11
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The Bestek inverter is a pretty popular inexpensive inverter.

Do you think that because they have what looks like "thin wires" in a picture, they are about to burst into flames when you make a cup of coffee ?

Is that a marketing strategy to sell more ?

Do you pack a bag when you light the stove, to perk coffee ? There's a fire waiting to happen !

I used one for a while, it made my coffee. I got tired of the noisy fan when watching TV. No flames though.
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Old 02-22-2016, 08:02 AM   #12
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Whenever I wanted coffee and had no electricity I put a pan of water on the gas stove and heated it up. While It was heating I used that time to fill the coffee makers basket with grounds. Once the water was properly heated I simply slowly poured the hot water on top of the grounds and soon had a pot of coffee.
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Old 02-22-2016, 10:29 AM   #13
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Quote:
Originally Posted by twinboat View Post
That would be 2400 watts at 12 volts.

He was talking about the 12 volt breaker leading to the inverter .

To the OP,

A Keriug draws about about 1500 watts so that works out to 125 amps on the DC side.

Even with losses in the inverter, with nothing else on, the breaker should hold.

Could be a weak breaker or overheating due to small gauge wiring.

It's this breaker:



I also realized the terminals are reversed but I assume that shouldn't make any difference.
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Old 02-22-2016, 10:30 AM   #14
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It's this breaker:



I also realized the terminals are reversed but I assume that shouldn't make any difference.
It may.
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