EcoFlow DELTA 2 Portable Power Station + 400W Portable Solar Panel - $995.25

robasha4

Feb 20, 2024 10:36 AM

409 Comments

Joined Dec 2011

robasha4Feb 20, 2024 10:36 AM

409 Comments

I believe I watched a review on this one and the usable capacity was under 80% which is garbage.

1

AnsonL6358

Feb 21, 2024 4:39 PM

590 Comments

Joined Jan 2013

AnsonL6358Feb 21, 2024 4:39 PM

590 Comments

Quote from robasha4

:

I believe I watched a review on this one and the usable capacity was under 80% which is garbage.

The ones I've seen are around 82% which is average.

1

will34

Feb 21, 2024 5:31 PM

154 Comments

Joined Mar 2016

will34Feb 21, 2024 5:31 PM

154 Comments

Quote from robasha4

:

I believe I watched a review on this one and the usable capacity was under 80% which is garbage.

"It's garbage" needs further context:

Usable capacity in these units rarely exceeds high 80% and when it does it's because they under-rate the battery. Given that this inverter is able to put a 2C load on the battery, it is understandable that the efficiency will take a hit due to the standby power draw will be double of the normal amount when compared to a unit with 1:1 ratio capacity/power output. Say at a 0.2C discharge rate the battery will empty in 5 hours, but in those 5 hours the inverter's standby consuption is 20W*5hrs = 100Wh which means 10% loss just from parasitic drain alone. But if the battery was twice the size, this loss would be only represent 5%.

This unit is perfect for those looking for high power output in a compact unit. If you need very high efficiency, it would be best to buy one with a smaller inverter. smaller the inverter, lower the standby consumption.

2

SeanD1497

Feb 21, 2024 9:42 PM

4.3K Comments

Joined Apr 2015

SeanD1497Feb 21, 2024 9:42 PM

4.3K Comments

Amazon has the Delta 2 with 2x 100W solar panels for $850, in case you would like to save a bit and don't need to recharge that rapidly. Or just the Delta 2 for $650, if you don't need to recharge via solar or want to supply your own panel. Some of the Dokio panels get a lot of good reviews, and are pretty cheap.

1

Caleo

Feb 22, 2024 1:53 AM

6.8K Comments

Joined Dec 2004

CaleoFeb 22, 2024 1:53 AM

6.8K Comments

Quote from robasha4

:

I believe I watched a review on this one and the usable capacity was under 80% which is garbage.

Quote from AnsonL6358

:

The ones I've seen are around 82% which is average.

This is a pretty well paired solar setup, with an unusually high amount of 'portable panel wattage' - these don't come cheap from Ecoflow. With 400W of input - probably 330-375 in good clear sunlight on average, depending on temperature & other local factors - you can top off the battery from low to full in just a couple hours of sunlight, when sunlight is limited. On a longer/sunnier day, it can run an inverter AC unit pretty comfortably to offset some peak hours consumption, which is pretty impressive for a foldable/portable/waterproof (IP68 rated) panel. Be aware it's not the lightest thing in the world @ ~42 pounds with the included combo case/'kickstand'.

With solar panels & people reporting lower than expected outage, something as simple as setting one up on blacktop in high heat would have these panels running too hot and at a diminished capacity. Any small shading can hurt them pretty bad too - grass, one of the flaps of the 'kickstand case' blocking a small portion of the bottom. The opposite can happen in cold winter weather - temperatures at/below 0f will basically have panels overproducing - I've observed it with my own Ecoflow folding panel (160W) and several other rigid panels including a bigger 455W.

Quote from will34

:

"It's garbage" needs further context:

Usable capacity in these units rarely exceeds high 80% and when it does it's because they under-rate the battery. Given that this inverter is able to put a 2C load on the battery, it is understandable that the efficiency will take a hit due to the standby power draw will be double of the normal amount when compared to a unit with 1:1 ratio capacity/power output. Say at a 0.2C discharge rate the battery will empty in 5 hours, but in those 5 hours the inverter's standby consuption is 20W*5hrs = 100Wh which means 10% loss just from parasitic drain alone. But if the battery was twice the size, this loss would be only represent 5%.

This unit is perfect for those looking for high power output in a compact unit. If you need very high efficiency, it would be best to buy one with a smaller inverter. smaller the inverter, lower the standby consumption.

I'd trade my Delta 2 (1kWh) for a Delta 2 Max with 2kWh. During longer duration outages, another bigger battery/inverter setup I have (5kWh) is preferable - but that has its own (larger, ~45W) idle draw to think about too. That said, at ~27 lb D2's pretty easy to lug around. The D2 Max @ 50 lbs gets to be quite a bit heavier to handle especially carrying through snow or ice as one might.

Gotta consider your own personal use cases because you may have several (and factor their real power demands by measuring your own devices' consumption).

At any rate, this isn't a bad way to have a legitimately useful amount of power on tap without immediately needing a gas engine and smelling like exhaust. This can power virtually any 120V power tool or appliance you can throw at it.

beakeru2

Feb 23, 2024 10:22 PM

1.3K Comments

Joined Feb 2015

beakeru2Feb 23, 2024 10:22 PM

1.3K Comments

Quote from will34

:

"It's garbage" needs further context:

Usable capacity in these units rarely exceeds high 80% and when it does it's because they under-rate the battery. Given that this inverter is able to put a 2C load on the battery, it is understandable that the efficiency will take a hit due to the standby power draw will be double of the normal amount when compared to a unit with 1:1 ratio capacity/power output. Say at a 0.2C discharge rate the battery will empty in 5 hours, but in those 5 hours the inverter's standby consuption is 20W*5hrs = 100Wh which means 10% loss just from parasitic drain alone. But if the battery was twice the size, this loss would be only represent 5%.

This unit is perfect for those looking for high power output in a compact unit. If you need very high efficiency, it would be best to buy one with a smaller inverter. smaller the inverter, lower the standby consumption.

Ive always considered myself to be a little above average when it comes to intelligence. After reading your post , I feel like an idiot... I need to some research in this field.. I was not able to decipher any of it.

will34

Feb 23, 2024 10:47 PM

154 Comments

Joined Mar 2016

will34Feb 23, 2024 10:47 PM

154 Comments

Quote from beakeru2

:

Ive always considered myself to be a little above average when it comes to intelligence. After reading your post , I feel like an idiot... I need to some research in this field.. I was not able to decipher any of it.

Normally these units will have an inverter that's the same size as the battery capacity… 500wh = 500w inverter, 2000wh = 2000w inverter and so on…

Ecoflow went a bit extreme with the delta 2 pairing a 1800/2400W inverter with a battery half the size at 1000wh. Making This is one of the lightest unit to be able to power ANY 110V household appliance.

Efficiency will not be high because you have a powerful inverter consuming lots of power even in standby. If you connect a 20W load to it, the total power draw will be close to 40w or more due to the inverter's standby consumption. And since the battery is half the size as industry standard, it translates into lower usable energy %.

The delta 2 has one of the best power to weight ratio. If you don't care about the weight go for the delta 2 max instead. Twice the capacity and twice the weight for $300 more

1

EcoFlow DELTA 2 Portable Power Station + 400W Portable Solar Panel - $995.25

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