EEVblog 1499 - EcoFlow Delta Pro 3.6kWh Portable Battery TEARDOWN!

Teardown of the EcoFlow Delta Pro 3.6kWh portable/home LiFePO4 battery solar inverter/generator.
Back in the old EEVblog garage!

00:00 - Back in the old EEVblog garage!
00:30 - EcoFlow Delta Pro LiFePO4 battery solar inverter/generator
06:31 - Possible cooling issue with multiple units
06:57- Teardown
10:50 - It's built like a brick dunny
12:06 - These mains spade lugs are DODGY!
12:45 - Extra battery input PCB
14:13 - Front AC and USB output PCBs
16:22 - AC output PCB
17:18 - The battery cage
18:01 - EV charger connection
18:38 - Solar MPPT controller PCB
21:55 - Inverter and charger PCB
24:04 - Getting to the battery PCB
25:13 - Battery Managment System BMS PCB
29:04 - Measuring the battery pack voltage
30:03 - Charger/Inverter PCB up close
33:00 - Battery pack PCB
35:09 - Conclusion

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#ElectronicsCreators #EcoFlow #solar

[luxmonday]

Wow, an actual BMS that looks good! they've done a nice job on this.... the two power resistors in series are the "pre-charge" circuit if the pack ends up low-voltage. That most likely indicates that the BMS IC is a Texas Instruments part which supports pre-charge. The secret button is likely the "wake" button for the BMS... Specific TI chips need a wake button after assembly before they start evaluating the cells. It's an assembly feature.

[Psychlist]

I've seen a ton of these on sponsored videos lately. Ecoflow is really sending them around. Don't forget to mark the video as "contains paid promotion" given they provided this to you. It's not currently marked as promo.

[bertblankenstein]

That's a thorough teardown on a seriously well built battery backup device. Lots of options. Thank you.

[cyclemoto]

Thanks for taking the time to perform this tear down. Design and build looks excellent. On the other hand the value is aimed at those who are incapable of building their own. I would be more than happy to use one of these if given to me but until that time I'll stick to DIY and save >$2k. Cheers

[BrosBrothersLP]

i love that you see that the engineers that designed this actually like what they do and do it with some love

[arcrad]

Anyone watching, notice when Dave is putting the self tappers back on the battery cover that he is initially turning the screwdriver backwards. This helps to find the existing thread and allow the screw to go back in without cross threading. Also works on any other threaded connections. It's a great trick to avoid cross threading things. Once it finds the thread the screw will drop down. You can feel it and then you know it's time to screw it in.

[p.schaafsma]

Thanks for your excellent and detailed teardown of the EcoFlow Delta Pro. I had a problem on my solar generator and the solar input plug broke off inside of the device while I was out in the boondocks. I had no idea on how to open this up and repair the problem. Thanks to this video I was able to open it up and repair the plug without sending it to the 'service center'. You are right that those spade plugs are very loose; good to tighten them up a bit.

[zacharytaylor]

Actually nice to see something designed like it might actually be used in harsher environments.
Damn near everything nowadays seems to be designed to only operate in a clean room.
Just a little thought into things like dealing with vibration/shock and slight damp conditions would do a lot of good for most anything. Of course, for all I know designing things to be as exposed to the elements as much as possible might be in intentional.

[jackbourne]

Glad they sent you the outdoor solar panels, none of that indoor rubbish!

[marekdlubatz]

Been following this channel for more than 10 years, and finally at the most unexpected moment in this video, i got an explanation what this brick dunny is all about.😅

[peterrock]

The video and audio quality was spot-on, so no worries mate! The Delta Pro is nice but expensive. One can build their own with those chineseium LIFEPO4 cells and an inverter, charge controller, and BMS purchased separately for a third the price. A few videos of your builds would be very interesting (hint, hint, hint).

[lucthien]

Thanks EEVblog, I just want to share my experience with the Delta Pro I own .
Like many peoples I did the research and buy in April 2022 my first units, yes it work nice and easy . in August 2022 I buy 1 more and a Dual Hub so I can run pool pump (220v 1 Hp for 5 hrs. a day sometime at day I use it to charge my Prius Prime too ) Using 3 group of 3 solar panels ( 356 W/ 37V ) to charge my units, because location of my house I get max input 1670W from solar panels .
I bough new on eBay from Ecoflow Direct ( $3600/unit ) It run for 2 weeks and error code 554 pop up NO POWE ROUT PUT . I work out with EcoFlow support ( photo + video's + Reset + update etc. ) they don't know the problem so they sent me new Dual Hub to test out and yes old Dual Hub is damage and 1 Delta Pro don't provide power out put at Infinity port . Ecoflow offer to repair but not replace for a unit that last only 2 weeks .
I think this system is for back up only not reliable for off grid . I look back reply time from EF it's China office time not US time !

[macman]

I always knew Batteroo were right, It is now confirmed Dave really has sold out to Big battery.

[SirHackaLt.]

A glowing report. Most unusual for Dave. :)
Oh wait, they gave it to you?
Yup.

[njtrigg]

11:53 It's very important to have your Nuts Captive. You just can't have them swinging in the breeze because otherwise it's a bit "how ya doin.
Thank you Dave for your guidance.

[PainterVierax]

some #ad fells mandatory when you review a product directly sent by the brand with some personalized coupon.

[mrnettek]

As a person who owns a Delta Pro, thank you. It's nice to see what's going on inside. Subscribed!

[CheapCheerful]

"Wasted space" on the sides is likely protection, a nice gap between outer wall and batteries for when someone inevitably smacks it, possibly even required with some home battery standard.

[pxidr]

22:58 they are LEM current hall effect sensors, not current transformers.

[Tuonga]

I was looking for a real teardown a couple of days ago and then today i saw your video. That is awesome