expired Posted by sdhl • Mar 21, 2023
Mar 21, 2023 7:28 PM
Item 1 of 5
Item 1 of 5
expired Posted by sdhl • Mar 21, 2023
Mar 21, 2023 7:28 PM
1260Wh EcoFlow DELTA Portable Power Station Generator (Refurb)
+ Free Shipping$426
$589
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Edit: I contacted them on Ebay and they're shipping me the missing solar charging cable.
I'm concerned with the scratches, smudges and a ding in the handle that the unit I have is pretty "used". As long as the battery is still holding a good charge, I will keep it or else I rather return it. That's one reason I don't like "refurbished" battery, especially this one since there's no obvious way of knowing how many cycles it has gone through already. I rather not keep a battery that's oniy 80% capacity (i.e. It has gone through close to 800 cycles already). Does the 2 year All-State warranty cover a battery with a bad capacity?
Received both units and both solar panels this week. Everything looks brand new, no scratches, no smudges, I don't even see any dust. Pleasantly surprise that the solar panel had no scratches or marks on them. Really thought these were going to be used units. Not sure if it's new and just overstock. One of the power station did ship from CA and the other from TX.
Not sure why all the back and forth on Li-on vs LiFePo4 on a lot of the Ecoflow posts. People need to understand their use case. This is the best value in my case. I plan on rotating these units for a weekend side gig I want to try out running a 1hp air compressor. Also for irregular outdoor uses. Each unit will probably see 50-75 cycles a year. Plan on keeping these bad boys between 20-80% charged all the time. If I get 3 years out of these units, I'm gucci.
Edit: I contacted them on Ebay and they're shipping me the missing solar charging cable.
I'm concerned with the scratches, smudges and a ding in the handle that the unit I have is pretty "used". As long as the battery is still holding a good charge, I will keep it or else I rather return it. That's one reason I don't like "refurbished" battery, especially this one since there's no obvious way of knowing how many cycles it has gone through already. I rather not keep a battery that's oniy 80% capacity (i.e. It has gone through close to 800 cycles already). Does the 2 year All-State warranty cover a battery with a bad capacity?
I'm going to run a couple more discharge tests to see if the efficiency is at least 80%. Most sites I googled say the battery should have around a 80-85%. I also want to make sure the estimate time/percentage is good after calibrating the battery. Mine is way off, like it ran another 30 minutes on a 687W load after the front panel says 1 minute (1% left) left; that's at least good news the capacity is good, lol
I'm going to run a couple more discharge tests to see if the efficiency is at least 80%. Most sites I googled say the battery should have around a 80-85%. I also want to make sure the estimate time/percentage is good after calibrating the battery. Mine is way off, like it ran another 30 minutes on a 687W load after the front panel says 1 minute (1% left) left; that's at least good news the capacity is good, lol
The Kill A Watt indicates
-11:03 hours of total run time
-76.1W
-Total Energy 837 Watts
This number seems very low so gonna run a few more test and will contact Ecoflow if it is still this low.
Also, this might be a deal killer for me. The AC power will not be ON when the power come back after completely drained the battery.
Could someone check on their unit and let me know of this is normal behavior?
Thank you
The Kill A Watt indicates
-11:03 hours of total run time
-76.1W
-Total Energy 837 Watts
This number seems very low so gonna run a few more test and will contact Ecoflow if it is still this low.
Also, this might be a deal killer for me. The AC power will not be ON when the power come back after completely drained the battery.
Could someone check on their unit and let me know of this is normal behavior?
Thank you
Was 76W the constant load on it during your test? I read online the efficiency may be different under different loads. Based on my testing so far (see below) it looks like if you have a larger constant load, it's more efficient. It's like the ratio of wasted overhead (heat, inverter conversion, etc) to load is lower for higher loads.
I played around with the unit I have, probably went through 4 cycles already to make sure 1) the capacity is still good (they guaranteed at least 95% cycles left 🤷🏻) and 2) the estimate remaining % / time is somewhat accurate. For the most part the unit seems to be running a long time. On my first test, I had a constant 687W heater and was able to get around 1060 watts per the KAW meter. Last night I hooked it up to my fridge (a medium size one in which the load varies to 100W to 1000W); it mostly stayed at around 100W, sometime down to 0 and occasionally up to 1000W. It survived the night; KAW meter shows 650 watts in the morning and the unit shows 25% left. I removed it and hooked my work laptop and monitor to it and it's now at 865 watts with 2% left. So not efficient as my 1st test but I'll wait for the unit to get drained to see since on my first test the estimated remaining % was all screwed up (it ran another 30 minutes even though the unit say 1 minute / 1% left). I believe I have gone through enough cycles to calibrate it by now.
For those who have a unit that look used I recommend you test your unit to make sure your capacity is good; you habe a month to return or exchange it
Was 76W the constant load on it during your test? I read online the efficiency may be different under different loads. Based on my testing so far (see below) it looks like if you have a larger constant load, it's more efficient. It's like the ratio of wasted overhead (heat, inverter conversion, etc) to load is lower for higher loads.
I played around with the unit I have, probably went through 4 cycles already to make sure 1) the capacity is still good (they guaranteed at least 95% cycles left 🤷🏻) and 2) the estimate remaining % / time is somewhat accurate. For the most part the unit seems to be running a long time. On my first test, I had a constant 687W heater and was able to get around 1060 watts per the KAW meter. Last night I hooked it up to my fridge (a medium size one in which the load varies to 100W to 1000W); it mostly stayed at around 100W, sometime down to 0 and occasionally up to 1000W. It survived the night; KAW meter shows 650 watts in the morning and the unit shows 25% left. I removed it and hooked my work laptop and monitor to it and it's now at 865 watts with 2% left. So not efficient as my 1st test but I'll wait for the unit to get drained to see since on my first test the estimated remaining % was all screwed up (it ran another 30 minutes even though the unit say 1 minute / 1% left). I believe I have gone through enough cycles to calibrate it by now.
For those who have a unit that look used I recommend you test your unit to make sure your capacity is good; you habe a month to return or exchange it
Most inverters are most efficient around 30-70% load with the worse being less than 30% which is your scenario and a linear dropoff around 50%.
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Most inverters are most efficient around 30-70% load with the worse being less than 30% which is your scenario and a linear dropoff around 50%.
1260*0.9 = 1134 kwh
1134/180 = 6.3 hours
Was 76W the constant load on it during your test? I read online the efficiency may be different under different loads. Based on my testing so far (see below) it looks like if you have a larger constant load, it's more efficient. It's like the ratio of wasted overhead (heat, inverter conversion, etc) to load is lower for higher loads.
I played around with the unit I have, probably went through 4 cycles already to make sure 1) the capacity is still good (they guaranteed at least 95% cycles left 🤷🏻) and 2) the estimate remaining % / time is somewhat accurate. For the most part the unit seems to be running a long time. On my first test, I had a constant 687W heater and was able to get around 1060 watts per the KAW meter. Last night I hooked it up to my fridge (a medium size one in which the load varies to 100W to 1000W); it mostly stayed at around 100W, sometime down to 0 and occasionally up to 1000W. It survived the night; KAW meter shows 650 watts in the morning and the unit shows 25% left. I removed it and hooked my work laptop and monitor to it and it's now at 865 watts with 2% left. So not efficient as my 1st test but I'll wait for the unit to get drained to see since on my first test the estimated remaining % was all screwed up (it ran another 30 minutes even though the unit say 1 minute / 1% left). I believe I have gone through enough cycles to calibrate it by now.
For those who have a unit that look used I recommend you test your unit to make sure your capacity is good; you habe a month to return or exchange it
I will definitely test it again with a portable heater and see if I get better capacity (at higher Load)
On the issue with AC power need to be turned ON after the battery completely drained. I think it is intended by design, especially the unit will go into sleep mode if not seeing Input/Output power after so many minutes.
I will definitely test it again with a portable heater and see if I get better capacity (at higher Load)
On the issue with AC power need to be turned ON after the battery completely drained. I think it is intended by design, especially the unit will go into sleep mode if not seeing Input/Output power after so many minutes.
I'm doing my last capacity test one last time. Have a 55 TV & Apple TV & humidifier on constantly (around 100W load). If I can get at least 80% efficiency, I'll keep it. Otherwise I may ask for an exchange. I wouldn't do it but my unit looks used so I'm concerned how much it's been used.
Edit: Got 980 watts with those 3 constantly on, 10.5 hours run averagimg 80-100W with 100W the majority. So around 77.7% efficiency. Don't know whether to keep or ask for an exchange (only because mine looks used)
Edit2: Decided to keep mine since the capacity is near optimal even though it looks used (I'm hoping the previous customer didn't baby it initially and only used it a few times). I asked them if the 2 years warranty covers premature capacity degradation and they just said contact them if I have problems within the warranty period, they offered me a $30 credit for my concerns. So customer service is definitely good with EcoFlow
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Most inverters are most efficient around 30-70% load with the worse being less than 30% which is your scenario and a linear dropoff around 50%.
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