Honestly this video was better information than any of the other videos. Most other people do one item at a time showing it capacity you showing your whole house and experiencing “issues” was everything I needed to make a better informed decision
Thanks for great real world use video. I have the same system running most of my house off grid with 1800W solar charging. I have never used a generator to AC charge, but that is my plan if needed some day. I use AC input charging (via isolation transformer to grid plug) only in cases of consecutive cloudy days. When I AC charge the DPU pulls in exactly 800W that I have set.
Great video for the single DPU with two batteries. I did notice that you had your charge setting on slow for the AC charging. You should have it set on fast charging at the AC plug and in the app turn on X-fusion, this will provide optimal output at 7.2kW no matter how much input there is.
I have yet to see a good explanation of what x-fusion and fast charging do. Why aren't they default? It makes me think there is some downside to them, and nobody says what that is.
OK, to clear up some of this. The fast charging switch at the AC plug just bypasses the charge limit I have set in the app - I do not want to do that because it would kill my generator. My generator is cheap and while it claims 2200 watts peak, reviews claim it is more like 1600 max for a steady draw. The DPU wants 1800 watts with fast charge on. If I had a beefier generator, sure that makes sense - maybe slow charge for a few minutes to warm it up, then flip to fast charge. X-Fusion still doesnt seem to have a good description in the manual and I do not see in the manual or the app where that is a setting. It sounds automatic.
In order to get the full 3600W per inverter (7200W at 240V) while the DPU is receiving power from an AC source the charging must be in “fast” mode. In order to use “fast” charging, and be able to get full rated output at the same time, the power source must capable of at least 1800W for 120V charging via the C20 input or at least 7200W for split phase 240V charging via the Power I/O port (using the L14-30 “generator adapter”, for example). The reasons are technical and complex but I will attempt to simplify in order to provide some answer as to “why”. If the AC input can provide 1800W then the inverter can supply up to an additional 1800W to provide the full 3600W (per inverter). Assuming the inverter is outputting that full 1800W and there is a brief surge back to the input source when the output from the inverter ceases, the surge won’t exceed 1800W and (in fast mode) the source should be able to handle 1800W. Now, imagine charging at 1000W in “slow” mode because your input source is a small generator that can only handle 1200W max. The inverter may have to output as much as 2600W to get to the 3600W max… if that 2600W happened to surge back, the generator might be damaged due to a surge >2X what it can handle. For this, and other more complicated reasons, the total output is limited to the charge rate when using “slow” mode (in other words 1000W “slow” charging means 1000W max output while AC is connected).
There isn't a friendly way to put that stuff on the product page. I have been eyeing a champion generator that has enough capacity that 1800 watts would be more like 50% capacity instead of 90% so it would be in that sweet spot for efficiency. I think I would be able to run it for 4 hours and have enough for a day of my emergency use. Thanks for the info
The power in on 120 v when outputting 240 was something that concerned me. So this is a great thing to know. It is now worth purchasing for home back up of 240V items when i only have a 120v inverter(3600W).
I think the solution is to make sure your generator can handle 1800 watts so you can have the fast charge switch on. Im eyeing the champion 4000 watt inverter fpr $600... that one does 3000 continuous so 1800 watts is in the sweet spot for it. My $280 generator maxes out at 1800 but it doesnt actually hit it without sounding like its being destroyed.
@@mainelyhobbies I have the Firman WO 3382. It should be able to run 3200 at 120 peak 3650. So it should do 1800W without any issue. the issue for this house that we got 2 years ago is that it had an Electric stove. So we need 240, and the Firman inverter will not do that, so the Delta Pro Ultra has the output and the various inputs, but I would rather go straight 120 instead of trying to push 240 v. and buy another inverter generator. I think that this solution would work and can be charged up with the current inverter. I don't want to go back to my Generac xL5500 because it was kind of dirty power for a battery setup.
Just make sure the generator has a THD of less than 10%. You could charge the DPU quicker with a 30 amp 240V capable generator. Thanks for sharing your testing
Right.. i have a 5500 watt generac 220v generator that is useless for this, so I got the little 120v inverter one for now. 220v inverter generators are too expensive because I would want one at least 5500 watts to handle my well pump if the dpu dies
Thanks for making this video. Your setup is almost identical to my goal, however our home is 100% electric. So while the DPU will run all the 240V appliances (range, water heater and dryer), their usage will require they be staggered with circuit breakers turned off to isolate high draw loads. Meaning the water heater will need to be turned off at the circuit breaker to run the dryer or range since a water heater is always on. Although…our water heater is app controlled, and we could put it in vacation mode (potentially a kind of off switch) as needed. I wish the DPU had a 50A 240v connection. I believe we would have get the smart home panel in order to do that, but not really interested in that as a solution.
I have the black EG4 Chargeverter (plenty of RUclips vids). It converts my propane generator AC to DC for charging my PDUs. DC fed to the high side solar connections on the DPUs. Better charging and, since DPU thinks it's getting solar in, no worries about AC in / out when charging with a fuel gen. Also, converts any fuel gen power to clean so can use any fuel powered generator because THD is mediated by Chargeverter. Suggest shutting off fuel gen by shutting off gasoline petcock and let gen burn off fuel in carb to reduce buildup of residue from pump gas sitting in carb. Use Sta Bil or similar fuel stabilizer mixed in all gasoline used in generator to further protect against fuel related issues.
I'll take a look at that product, I didn't think anything could clean up power like that, but if it is possible then it would let me use my older generator that is not an inverter style. I do shut the generator off with the switch and then usually when a storm is completely done let the gas run out in the car. And yes I use ethanol free with a stabilizer
How are you feeding it to the high side solar input? The minimum voltage is 80 volts on the high side, and that eg4 product looks like it only puts out 52 volts max. It looks like it can only go on the low side and at 52 volts would only charge at 800 watts.
I would love to see myself do that too. I didnt see the price I was willing to pay for a delta 3 plus during black friday. When I see it at $500 or less I will probably bite. It is hard to justify more when you can buy a 1kwh battery for $180 now. When it happens I will be sure to make a video testing it out.
Also that DPU should NOT be plugged into a power strip. You can overload that strip very easily. Please only plug directly into an outlet. Will probably solve your GFCI tripping as well.
Yeah, good point.. the power strip is temporary, and while on it, I limit charging to 800 watts.. I am always cautious of heat build up on long extended high loads. The gfci tripping was unrelated. It was because I had it plugged into the wall while also plugging into the generator inlet even though the transfer switch was not activated, it trips gfci.
i purchased dpu, one battery. my hook up was, around 1150 ish output, it show me 9hrs to go- question, you using two batteries and you showing 9 hrs? seen very suspicious. 😢
Great equipment. Absolutely the worst customer service/ tech support, of any company, for any product, that I've encountered in all of my 58 years. They won't allow you to speak to a person, and conduct everything through email. It's been over a month now, and they've yet to answer my question. I have 3 Delta Pro Ultras with 9 batteries, running a Smart Panel 2. That's a pretty good chunk of change, and there is no excuse for giving me the run around. I'm not even trying to warranty anything. Just have simple questions they refuse to answer. I have an EG4 system on another home, and have had zero issues getting answers from them. Usually the same day. I'm extremely disappointed with EcoFlow.
I believe you, but I have reached out with two questions on various setups and got responses pretty quickly. The problem is if it isn't explicitly stated somewhere in their info, it seems like they're not willing to guess. I see stories good and bad on the Facebook and Reddit groups.. stuff being replaced without fuss but also orders marked as shipped for prpduct they didn't have yet. Curious.. if you know about EG4 now.. did you buy that massive ecoflow setup before you bought eg4 stuff? Seems like at your scale, the eg4 is better suited and cheaper. If I didn't get that Home Depot price mistake, I likely would have gone eg4 from the start.
I'm new to solar, and the EG4 was the system I bought first, and used to educate myself a bit on solar. It's a 12k system for my house, but I needed something more pug and play for my mother's house. The EcoFlow seemed easy enough to operate. My problem with it, is that it randomly shuts off with no error codes. Might run 10 days, 2 days, 10 minutes, and then randomly shut off. It's not grid tied while it's running, so it's definitely not a grid related problem. I simply asked them if they knew why, and that was on 12/05/24. I sent them all the info they requested, and last received an "thanks for my patience" email, right before Xmas.
The Delta Pro Ultra uses low cost, low surge, shorter lived, high frequency, transformerless inverter tech that can damage your appliances or EV during a catastrophic failure H- Bridge circuit. No thanks.
I had not heard that.. I think I'm one of the few videos on this that isn't sponsored. Anyway, even with that risk, we are talking using this battery versus a 10 year old Generac non inverter generator I have been using. It is for emergency backup.
I think I've seen you post this on at least two other videos about this product. It works great, and its surge works fine. I'm guessing there is another product you need to buy to safeguard yourself?
Honestly this video was better information than any of the other videos. Most other people do one item at a time showing it capacity you showing your whole house and experiencing “issues” was everything I needed to make a better informed decision
Thanks for great real world use video. I have the same system running most of my house off grid with 1800W solar charging. I have never used a generator to AC charge, but that is my plan if needed some day. I use AC input charging (via isolation transformer to grid plug) only in cases of consecutive cloudy days. When I AC charge the DPU pulls in exactly 800W that I have set.
Great video for the single DPU with two batteries. I did notice that you had your charge setting on slow for the AC charging. You should have it set on fast charging at the AC plug and in the app turn on X-fusion, this will provide optimal output at 7.2kW no matter how much input there is.
I have yet to see a good explanation of what x-fusion and fast charging do. Why aren't they default? It makes me think there is some downside to them, and nobody says what that is.
OK, to clear up some of this. The fast charging switch at the AC plug just bypasses the charge limit I have set in the app - I do not want to do that because it would kill my generator. My generator is cheap and while it claims 2200 watts peak, reviews claim it is more like 1600 max for a steady draw. The DPU wants 1800 watts with fast charge on. If I had a beefier generator, sure that makes sense - maybe slow charge for a few minutes to warm it up, then flip to fast charge.
X-Fusion still doesnt seem to have a good description in the manual and I do not see in the manual or the app where that is a setting. It sounds automatic.
There is so much misinformation. Also, make sure your DPU is updated. It has to be set to fast charge to be able to input 120v while outputting 240v.
Do you know why this is?
This video is very helpful in addressing your small generator issue:
ruclips.net/video/FUpFUfw73Go/видео.htmlsi=QPjRv-XU_eWcl1Nd
Awesome video. Set your max charge on the DPU to 90% to keep it's life long.
It naturally has a long battery life so most don't care.
In order to get the full 3600W per inverter (7200W at 240V) while the DPU is receiving power from an AC source the charging must be in “fast” mode. In order to use “fast” charging, and be able to get full rated output at the same time, the power source must capable of at least 1800W for 120V charging via the C20 input or at least 7200W for split phase 240V charging via the Power I/O port (using the L14-30 “generator adapter”, for example).
The reasons are technical and complex but I will attempt to simplify in order to provide some answer as to “why”. If the AC input can provide 1800W then the inverter can supply up to an additional 1800W to provide the full 3600W (per inverter). Assuming the inverter is outputting that full 1800W and there is a brief surge back to the input source when the output from the inverter ceases, the surge won’t exceed 1800W and (in fast mode) the source should be able to handle 1800W.
Now, imagine charging at 1000W in “slow” mode because your input source is a small generator that can only handle 1200W max. The inverter may have to output as much as 2600W to get to the 3600W max… if that 2600W happened to surge back, the generator might be damaged due to a surge >2X what it can handle. For this, and other more complicated reasons, the total output is limited to the charge rate when using “slow” mode (in other words 1000W “slow” charging means 1000W max output while AC is connected).
There isn't a friendly way to put that stuff on the product page. I have been eyeing a champion generator that has enough capacity that 1800 watts would be more like 50% capacity instead of 90% so it would be in that sweet spot for efficiency. I think I would be able to run it for 4 hours and have enough for a day of my emergency use. Thanks for the info
The power in on 120 v when outputting 240 was something that concerned me. So this is a great thing to know. It is now worth purchasing for home back up of 240V items when i only have a 120v inverter(3600W).
I think the solution is to make sure your generator can handle 1800 watts so you can have the fast charge switch on. Im eyeing the champion 4000 watt inverter fpr $600... that one does 3000 continuous so 1800 watts is in the sweet spot for it. My $280 generator maxes out at 1800 but it doesnt actually hit it without sounding like its being destroyed.
@@mainelyhobbies I have the Firman WO 3382. It should be able to run 3200 at 120 peak 3650. So it should do 1800W without any issue. the issue for this house that we got 2 years ago is that it had an Electric stove. So we need 240, and the Firman inverter will not do that, so the Delta Pro Ultra has the output and the various inputs, but I would rather go straight 120 instead of trying to push 240 v. and buy another inverter generator. I think that this solution would work and can be charged up with the current inverter. I don't want to go back to my Generac xL5500 because it was kind of dirty power for a battery setup.
Just make sure the generator has a THD of less than 10%. You could charge the DPU quicker with a 30 amp 240V capable generator. Thanks for sharing your testing
Right.. i have a 5500 watt generac 220v generator that is useless for this, so I got the little 120v inverter one for now. 220v inverter generators are too expensive because I would want one at least 5500 watts to handle my well pump if the dpu dies
@@mainelyhobbies Check out the AI Power (SUA7600iED) inverter generator.
There was a update to fix the lower wattage charge and having issues if the output was higher.
Thanks for making this video. Your setup is almost identical to my goal, however our home is 100% electric. So while the DPU will run all the 240V appliances (range, water heater and dryer), their usage will require they be staggered with circuit breakers turned off to isolate high draw loads. Meaning the water heater will need to be turned off at the circuit breaker to run the dryer or range since a water heater is always on. Although…our water heater is app controlled, and we could put it in vacation mode (potentially a kind of off switch) as needed. I wish the DPU had a 50A 240v connection. I believe we would have get the smart home panel in order to do that, but not really interested in that as a solution.
That smart home panel 2 is a big investment and adds another spot where things can break, so I have not been too interested in that either.
I have the black EG4 Chargeverter (plenty of RUclips vids). It converts my propane generator AC to DC for charging my PDUs. DC fed to the high side solar connections on the DPUs. Better charging and, since DPU thinks it's getting solar in, no worries about AC in / out when charging with a fuel gen. Also, converts any fuel gen power to clean so can use any fuel powered generator because THD is mediated by Chargeverter.
Suggest shutting off fuel gen by shutting off gasoline petcock and let gen burn off fuel in carb to reduce buildup of residue from pump gas sitting in carb. Use Sta Bil or similar fuel stabilizer mixed in all gasoline used in generator to further protect against fuel related issues.
I'll take a look at that product, I didn't think anything could clean up power like that, but if it is possible then it would let me use my older generator that is not an inverter style. I do shut the generator off with the switch and then usually when a storm is completely done let the gas run out in the car. And yes I use ethanol free with a stabilizer
How are you feeding it to the high side solar input? The minimum voltage is 80 volts on the high side, and that eg4 product looks like it only puts out 52 volts max. It looks like it can only go on the low side and at 52 volts would only charge at 800 watts.
I have the Toyota version of that car and would love to see you hook up the Eco flow alternator charger to the car and charge your pro ultra
I would love to see myself do that too. I didnt see the price I was willing to pay for a delta 3 plus during black friday. When I see it at $500 or less I will probably bite. It is hard to justify more when you can buy a 1kwh battery for $180 now. When it happens I will be sure to make a video testing it out.
Can you test using a 220v generator and plug it into the ultra
My 240v generator is a 10 yesr old generac and not an inveryer style.. the power is too dirty for the delta pro ultra :(
Why not just plug delt pro ultra AC plug, to put in house outlet, to power battery also?
Also that DPU should NOT be plugged into a power strip. You can overload that strip very easily. Please only plug directly into an outlet. Will probably solve your GFCI tripping as well.
Yeah, good point.. the power strip is temporary, and while on it, I limit charging to 800 watts.. I am always cautious of heat build up on long extended high loads. The gfci tripping was unrelated. It was because I had it plugged into the wall while also plugging into the generator inlet even though the transfer switch was not activated, it trips gfci.
i purchased dpu, one battery. my hook up was, around 1150 ish output, it show me 9hrs to go- question, you using two batteries and you showing 9 hrs? seen very suspicious. 😢
What size is the double pull breaker ?
The generator interlock is using a 30 amp breaker
Great equipment. Absolutely the worst customer service/ tech support, of any company, for any product, that I've encountered in all of my 58 years. They won't allow you to speak to a person, and conduct everything through email. It's been over a month now, and they've yet to answer my question. I have 3 Delta Pro Ultras with 9 batteries, running a Smart Panel 2. That's a pretty good chunk of change, and there is no excuse for giving me the run around. I'm not even trying to warranty anything. Just have simple questions they refuse to answer. I have an EG4 system on another home, and have had zero issues getting answers from them. Usually the same day. I'm extremely disappointed with EcoFlow.
I believe you, but I have reached out with two questions on various setups and got responses pretty quickly. The problem is if it isn't explicitly stated somewhere in their info, it seems like they're not willing to guess. I see stories good and bad on the Facebook and Reddit groups.. stuff being replaced without fuss but also orders marked as shipped for prpduct they didn't have yet. Curious.. if you know about EG4 now.. did you buy that massive ecoflow setup before you bought eg4 stuff? Seems like at your scale, the eg4 is better suited and cheaper. If I didn't get that Home Depot price mistake, I likely would have gone eg4 from the start.
I'm new to solar, and the EG4 was the system I bought first, and used to educate myself a bit on solar. It's a 12k system for my house, but I needed something more pug and play for my mother's house. The EcoFlow seemed easy enough to operate. My problem with it, is that it randomly shuts off with no error codes. Might run 10 days, 2 days, 10 minutes, and then randomly shut off. It's not grid tied while it's running, so it's definitely not a grid related problem. I simply asked them if they knew why, and that was on 12/05/24. I sent them all the info they requested, and last received an "thanks for my patience" email, right before Xmas.
@kevinalexander4378 yeah that sounds like a phone call with an expert kind of issue.
The Delta Pro Ultra uses low cost, low surge, shorter lived, high frequency, transformerless inverter tech that can damage your appliances or EV during a catastrophic failure H- Bridge circuit. No thanks.
I had not heard that.. I think I'm one of the few videos on this that isn't sponsored. Anyway, even with that risk, we are talking using this battery versus a 10 year old Generac non inverter generator I have been using. It is for emergency backup.
@@mainelyhobbies The DPU is UL 1741 certified. Which should eliminate most these concerns right?
I think I've seen you post this on at least two other videos about this product. It works great, and its surge works fine. I'm guessing there is another product you need to buy to safeguard yourself?
What does that mean to non electricians?