EcoFlow Portable Jerry Can. Does this make sense?

[SpaceEVDriver]

I'm not talking about getting more energy by pulling it out from the battery faster- I'm talking about not waiting around forever to charge, and also to reduce conversion losses between AC and DC.

Sure, but do you really want to give up so much storage space so you can add no more than about 9 miles to your range, much of which you would probably lose by hauling an extra 100 pounds around all the time. I mean, if you're seriously concerned about an extra 9 miles, you could just drive a few mph slower; accelerate a bit less; turn the heat down a degree or two.

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[SnBGC]

Not sure exactly what we are talking about here but if we are discussing road side EV charging then Blink has a gasoline powered 9.5 kW mobile unit that retails for $7k. Fleet owners would probably consider buying one of those to have for "just in case".

 

[SpaceEVDriver]

I'm going to tow this behind my F-150 Lightning.


https://www.electriccarpartscompany.com/1mwh-500v-800v-battery-energy-storage-system

 

[dtbaker61]

Yes, I'm not disagreeing that it isn't the best idea 99% of the time for 99% of people. But, why waste the already limited amount of energy with two lossy conversions?


Or, we could use a DC-DC boost converter to get the required voltage. Yes, that's also lossy, plus the conversion efficiency probably goes down the greater the voltage differential, but still...


I'm not talking about getting more energy by pulling it out from the battery faster- I'm talking about not waiting around forever to charge, and also to reduce conversion losses between AC and DC.

the point is that it is a complete waste of money to buy and carry around an 'emergency gas can' that holds the equivalent of about a cup of gas.

 

[SpaceEVDriver]

the point is that it is a complete waste of money to buy and carry around an 'emergency gas can' that holds the equivalent of about a cup of gas.

And that takes up the size of a 10 gallon tank and costs the equivalent of 900 gallons of gas.

 

[dtbaker61]

And that takes up the size of a 10 gallon tank and costs the equivalent of 900 gallons of gas.

exactly.
'range anxiety' requires very expensive psychotherapy, which can be avoided by adjusting your expectations and learning a little about the difference between ICE and BEV .

 

[SpaceEVDriver]

exactly.
'range anxiety' requires very expensive psychotherapy, which can be avoided by adjusting your expectations and learning a little about the difference between ICE and BEV .

I estimated poorly. The actual volume is just under 20 gallons.

 

[dtbaker61]

I'm going to tow this behind my F-150 Lightning.


https://www.electriccarpartscompany.com/1mwh-500v-800v-battery-energy-storage-system

yeah no towing with the mache

 

[SpaceEVDriver]

yeah no towing with the mache

And no towing a 20,000 pound container (plus the 6-10k pound trailer) with the Lightning. I was being a smart alec.

 

[dtbaker61]

And no towing a 20,000 pound container (plus the 6-10k pound trailer) with the Lightning. I was being a smart alec.

oh gee, really ?!
I thought everybody hear already knew I have a very limited sense of humor as an Engineer, and usually take replies 100% literally.

 

[Deleted member 9368]

Great feedback thanks. Then, I 'll assume the dudes doing all the Youtube's are shills for the overpriced power stations. I was worried about them overheating as much as I was concerned with gas smell and heat for a small gas genny.

 

[Deleted member 9368]

OK I know what you said about Jerry can. I get it ...but I went ahead and got the Jackery 1500 Explorer rated to 1800w peak. Just backup to mainly keep fridge going in power out continually. Unfortunately, charging experiment.. no joy on charging. Ford portable charger stayed orange.
On a good note, was producing almost 450 watts on 4 panels..I guess..

Perhaps my mathematical and electrical abilities just aren't there... what am I missing?

 

[dtbaker61]

OK I know what you said about Jerry can. I get it ...but I went ahead and got the Jackery 1500 Explorer rated to 1800w peak. Just backup to mainly keep fridge going in power out continually. Unfortunately, charging experiment.. no joy on charging. Ford portable charger stayed orange.
On a good note, was producing almost 450 watts on 4 panels..I guess..

Perhaps my mathematical and electrical abilities just aren't there... what am I missing?

your little Jackery 1500 is rated for 1500watt continuous output.
The MME portable charger is asking for right around 1200watts (using the 120v tail)
....so it *might* work for a little bit. But, hardly worth it considering you could only transfer 1 or 2 kWhr from the Jerrycan, and your Solar won't keep up.

This little system might be ok to keep a refrigerator and a couple lights running..... but not charge a BEV.

If it's not working at all, it may be because the mobile charger sees that the outlet is not grounded. There is probably a 'ground' screw somewhere on the Jackery unit that you could attach a copper wire and long nail to and drive into the ground. This MAY get it working.

BUT, charging will suck the internal battery dry in a hurry, and your Solar will not keep up unless you have 1500 watts dumping in to keep up with what you are pulling out.


..... now, what you COULD do it extract 12v power from the MME connection points in place of your Solar, run thru the Jackery, and run your refrigerator and lights for a week or two without any solar at all as long as the MME is 'ON', and the auto-time-out is 'OFF', the HV will supply 14+ volts to the 12v connection points.

 

[phidauex]

OK I know what you said about Jerry can. I get it ...but I went ahead and got the Jackery 1500 Explorer rated to 1800w peak. Just backup to mainly keep fridge going in power out continually. Unfortunately, charging experiment.. no joy on charging. Ford portable charger stayed orange.
On a good note, was producing almost 450 watts on 4 panels..I guess..

Perhaps my mathematical and electrical abilities just aren't there... what am I missing?

Unfortunately at that price point it probably doesn't include a sine wave inverter, meaning a lot of sensitive devices like chargers won't want to work on it. It is probably failing on power quality.

Also, keep in mind that even if you got it connected to the car, charging the car with it would mean running it at > 1.0C discharge, which will wear out the internal battery real fast. Best case scenario would be that you would charge all day from solar, then connect to the car and charge it for ~1hr, and get about 1kWh into the car for two days of work. You could probably just push the car by hand and get further than that in a day of work...

Experiments like these really show how much energy cars take - most people don't realize that their car is the most energy intensive thing they own by a big margin, all those details are hidden when using gasoline, but very apparent when using electricity which is easier to compare with the other things in our life. A car, even a very efficient EV, requires a lot of energy, and it isn't easy to make and store that much juice.

 

[Deleted member 9368]

Unfortunately at that price point it probably doesn't include a sine wave inverter, meaning a lot of sensitive devices like chargers won't want to work on it. It is probably failing on power quality.

Also, keep in mind that even if you got it connected to the car, charging the car with it would mean running it at > 1.0C discharge, which will wear out the internal battery real fast. Best case scenario would be that you would charge all day from solar, then connect to the car and charge it for ~1hr, and get about 1kWh into the car for two days of work. You could probably just push the car by hand and get further than that in a day of work...

Experiments like these really show how much energy cars take - most people don't realize that their car is the most energy intensive thing they own by a big margin, all those details are hidden when using gasoline, but very apparent when using electricity which is easier to compare with the other things in our life. A car, even a very efficient EV, requires a lot of energy, and it isn't easy to make and store that much juice.

I think I forgot an important part noted in a few posts:
https://www.amazon.com/Southwire-Co...212d32f414af1&language=en_US&ref_=as_li_ss_tl

Is this true? I suspect I need the ground..

I am basing testing on this dudes video:

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