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[@1ENDUSER]

Thank you very much for making this video. I posted comments on other tubers to show this type of addition since they have the materials to test out but they never did. So it helps us do budget ways on adding expansion to our solar generators using 3rd party batteries.

[@junkvista61]

I want the same but Ecoflow won't make it easy for us to add more generic/off the shelf batteries to DP. They have extra battery unit that work in tandem with DP but we still not figure out how to set generic/off the shelf batteries to work with DP yet.

[@gregyohngy]

I have a Delta 2 and EcoFlow uses an Orange XT60i plug, instead of a Yellow XT60 for solar. They limit to 8 Amps a regular XT60 plug, because that wiring is used for a 12V Car plug.

[@JustaCuriousity]

OMG thank you so much! I really need this video. Now i can utilize my 2 48v racks batteries. I ll just have to buy 48v MPPT and solar panels now.

[@jfh400]

Thank you for testing this! I’ve been thinking about this exact setup but it’s been tough to get a definitive answer on whether it would work well.

[@luckelle1]

@jehugarcia man first let me say… Your the battery god! I was waiting to see someone connect a rack battery to the Delta pro, but no one did. The max amperage for the Delta Pro is 15 amps. I thought it would burn up with the rack battery. I guess the pro can throttle down what it accepts at its input. Anyway you made my year and I’m a supporter for life as you respond quick with videos.

[@ericklein5097]

A device will only pull what it needs. Obviously solar panels being a different story.

[@1ENDUSER]

All solar generator all in one's have safety protection built in them either it be the AMP or VOLTAGE needed to charge/use them. Its probably a law everywhere when designing them so general public doesn't have to worry or most don't think of that aspect thats why. If your buying one that doesn't have those standards, I wouldn't buy it.

[@erikm5753]

@@1ENDUSER interesting in watching many videos on charging portables they never mention this. EcoFlow is limited to 15 A. I have been going back-and-forth between a 15 amp versus 20 amp DC DC converter.

[@peacepoet1947]

Thanks for showing us how to do.

[@tumbleweed1976]

This concept is great so long as EcoFlow works. My Delta 2 stopped charging. Under warranty EcoFlow replaced as of May 2023.

[@JustaCuriousity]

Was it because of the way of charging?

[@shelley131]

You are a genius! I have a Delta Max 2000, and am going to order a couple of server rack batteries for charging my Delta Max 2000. Thanks .

[@mboseensco]

Thank you for this video. I've been on the fence about doing exactly this since I couldn't find anything concrete online. I am very interested in the options for quick charging (via AC plug ) the server rack batteries between rolling power outages, etc.

[@1ENDUSER]

Same thought I've had since I got my pro's on kickstarter. I even posted comments on other tubers since they have the materials but most never have.

[@serverrackbatteryusa]

Great Video, it give many ECOFLOW owner a more economic way of adding batteries. Suggest to remain battery parallel connect as 48V to charge the ECOFLOW System.

[@LarryRichelli]

Very slow charging after spending so much money!

[@adamsisernik4556]

I buy Basen Green 11,7kw 51,2V (200A max) and I try to charge my Delta pro the same way via xt60 with xt60i cable(orange one) ... after charging at 15,5A for a minute the charging start like go stop go stop (-3A -5A -3A -5A etc...) every 5 seconds?? What can it be wrong?

[@JustaCuriousity]

@@adamsisernik4556 It exceeds 15A, that's why. In my understanding, 15Amps 51.2V = 5.1kwh. I dont know how your batteries are built, but if you want a bigger one, it should be in series, it will make 51.2V x 2 = 102.4V and its current should remain 15Amps. Correct me if im wrong.

[@adamsisernik4556]

@@JustaCuriousity Yes. you are right... My battery is 11,7kWh so 16cells in series I guess... Got answer from EF support saying that they don’t recommend charging DP with it since the output surpass the solar charging limit too much. The current input power from my panels via xt60 in the DP is calculated to be 18.8A in it is workih fine.... so output value from my battery could be set over 15A too ??, but specification says 15A max... so I will ask Basen Green support team, to set it to 12A, to be worry free. They can make this remotely :) so therefore, we can later adjust the setting to a higher value.

[@itman73]

I’d like to see hacking the Delta Pro with a similar battery rack set as if it was the official Delta Pro extra battery with discharge and charge functions.

[@jehugarcia]

That’s above my abilities

[@arachnidkalven]

Perfekt idea

[@LarryRichelli]

@@jehugarcia I don't believe it. Simply get the extra battery cable from ecoflow, cut it open and figure out the wiring. Done! If anyone could do this , you could

[@iordanionutable]

Hi. If you have only one battery jakiper for help the Delta 2 max for the night...How can you charge after the Battery jakiper if you don't have 1 inverter to connected with the panel solar

[@panospapadimitriou3498]

waiting delta 2 to arive and thinking of charge it with solar and outside mppt charger at my storage where is all my needs !!! 500watts is fair if you can have almost all ,and 60 volts in battery packs require a bit crazy and rare setup and charger

[@zodiacfml]

not a bad idea for a small power and compact off-grid setup, like vanlife or RV. I've been screaming in vanlife build videos that the electrical system can be better with a powerstation, where majority still use pricey and complicated Victron gear. I also find this channel finally covering LFP related equipment.

[@TienTran-bi1jv]

I think at 5:00 you can connect 2 battery in series and charge the delta pro because it would give 15amp and 106v to give 1600 w. those are within the limit of the delta pro. however i kinda worry about the cable these are 10 gauge wire, do you think it will melt those cable in the long run?

[@junkvista61]

Thanks, this is good BUT using batteries to charge Ecoflow DP is easy and straight forward if you charge external batteries by plug them to grid. What I want to know is how to set them up using the solar energy that comes to the DP then charge batteries for later use. DP has 12v output at the front right side of it to charge 12v battery, yes only 12V. Any way you can set it work like Ecoflow DP extra battery. They intentionally to make it that way so you can not buy generic, off the shelf battery to work in tandem with DP so they can get more money from you. If I need to store more energy I would buy Ecoflow DP extra battery.

[@eugenesaville226]

Can you provide in detail the wire configuration running from the server battery to the Ecoflow and how you have it connected please

[@aaroncottrill7426]

That's good what about connecting those batteries to the eco flow electrical panel

[@agile-heliuk1801]

Wow.. i just been thinking about this. And stumbled on your video. Big thumbs up 👍

[@chrisnelson3470]

Your videos are great. I’m seeing mixed info on what xt60 or xt60i will work and they don’t have any solar charging cables for sale. The confusing thing is the car charger has an orange xt60i with extra pin. Which one is it? Using the delta 2 btw.

[@BrandonDoStuff]

The pin is connected to the negative in the xt60i for the solar. The pin is connected to positive for car charger.

[@Screamingtut]

Jehu, I have brought your 12v 100Ah SLM121 LIFEPO4 12V 200A 4S2P 1200WH BATTERY and I got your BMS and PC board and I have one of the original Bluetti AC200 (before the AC200P). I want to know if I can use that battery to supplement the internal battery of the AC200? I hope you can let me know.

[@jehugarcia]

Yeah connect it using the 12v charge cable that Blueti makes for the Ac200

[@jamesdean7756]

Can you charge the dp and discharge at the same time. Like run a 1000w heater all night connected to rack battery to keep it running all night

[@jscw2]

impressive!

[@TJM45]

I want to thank you for teaching us… I have 2 Echoflow Delta Pro’s and 4 external batteries. How can I charge the those batteries you have in the rack with solar?

[@1ENDUSER]

With a mppt charge controller or a ac battery charger with the amount of voltage your batteries are. So if its 48v thats what charger you'll need.

[@Iamandthatiam]

can I charge several ports simultaneously ? like add alternator charger at the same time?

[@michaelbravo3866]

this is really smart

[@adragton]

Echo Flow Ultra, will this technique work the same way ?

[@bobrub]

Have you ever tried the 240v 15a fast (3000w) charge (via A/C wall outlet) option on the Delta Pro? I AM NOT asking about SOLAR input charging which I'm aware has a 150v d/c limit @ 15amp max. I am referring to the c13 A/C charging cord inlet on the rear that says "100-240v @15a max.". Ria's (Ham Shack) and a few others on youtube say it can be done but never explained how to do. I think a 240v replacement power cord is needed + a 240v 15a outlet to plug it into. It would make a good video I think for all the Delta Pro owners on here.

[@1ENDUSER]

No way it could be done. EF pro voltage limit/max is 150V. It would trip the voltage. And the AMP are throttled to only 15amps

[@bobrub]

@@1ENDUSER Hi there, I think you misunderstood my comment/question to jehugarcia ... I have edited it a bit so please reread it ..... I am not asking jehugarcia about SOLAR input charging, but am asking him about 240v A/C fast charging via power cord-wall outlet from the grid.

[@1ENDUSER]

​@@bobrub- Yeah I understand. The verison of delta pro he has in the video is the American version. With charging AC outlet of 120v 15amp. The version spoken in the Ria's could relate to the Europe version & any other countries that use 240v AC outlets.

[@bobbyredneck0013]

I get 3.4kw of charge through the extreme adaptor when charging at an EV station. It doesn't stay at that rate for the whole charge cycle though because of the 3 stage charging process that these lithium batteries have. When charging via AC outlet the highest it goes is 2.7kw (in europe)

[@vudunof]

I just charged my EF DP from the rear A/C c13 port with 240V from a Nema 6-50 outlet I have in my garage - it works great. DP is designed to accept 240V A/C charging up to 3000W which = 12.5 amps & well below the 15a limit set by EF. I just had to buy a cable to plug into 6-50 outlet with a different connector on the other end that would accept a 240V plug that also,had a 20a c-13r to,plug into the DP. My DP was receiving 2.9kw of A/C input from the 240V wall outlet.

[@paulhaffenden8911]

As Delta Pro's and Delta Max's can connect, charge and drain the official batteries via the side connectors, can you connect the rack mount batteries in the same way, so you can maintain the solar connection via the XT60i port?

[@jehugarcia]

Not without custom hardware and software

[@user82938]

I think that would confuse the Delta Pro, because it uses the solar to charge the official extra batteries via that port. I don't think it's a simple power port that you could wire into.

[@350JS]

So how do you run solar with the batteries as extra power? Video idea?

[@number7entertainment419]

So, can you just add 12V Lead Acid 100amphour in series and charge the EcoFlow? Seems like you could.... I have 12 of them.... would like to add 6 of them in series and then charge the EcoFlow... and then just recharge the 12V Batteries from Solar Panels and a charge controller... would love to find a way to hook them up that way, so they constantly are being recharged by the Solar Panels, and then that bank of batteries constantly charges the EcoFlow which powers the cabin or house.... any thoughts? Thanks for your great content!

[@jaysonstebbins2539]

Did you let this test run for a while longer? With a lower battery i see my 1800 watt array in full sun only pull 1000 ish under the battery cimb a little higher. I only see 1600 watts max 15.9 amps at 105v.

[@thepatternforms859]

If the delta is plugged up and charging with the 800w alternator charger will the EcoFlow once full charge send power through the solar input cable and charge back up the other batteries?

[@ronaldnexus2378]

Do you know if there's a way for say an MPP Inverter (e.g., LVX6548) to feed (charge) the EcoFlow? -Hoping to use the EcoFlow I have as backup battery. -But I want to have an all-in-one inverter (w/PV in) to supply the the EcoFlow battery. -Have you tried that? Lots of people ask this question. -I'm trying to charge my EV off EcoFlow nightly, -Key, I'd like an Inverter to "both" charge the EcoFlow, "and," be able to use NetMeetering.

[@koruki]

Can you add solar panel to trickle this set up.

[@eugenesaville226]

I’m interested in adding 1 more delta pro to link together to have 240 v output and connect to my transfer switch to supply my whole house. Is there any way I can get the same 240v output using server batteries instead of buying another delta pro

[@RedHatGr]

Thank you !!! Great solution... Please help. I have 2 extra batterys whith one Delta Pro BUT my DELTA PRO BROKE... Can i use the extra smart battterys to another inverter ? like growatt for example... Thank you

[@chucky_genz]

Ty ❤

[@vasylsadoviy1644]

Great video. Checked with my 12v battery and it works. EcoFlow also has device PowerStream that connects directly to battery port for delta models. What did you think, can we use this device connecting to 48v battery? And can we reach combining (using solar ports for delta and power stream) charging speed ~1500 watts?

[@user82938]

Thanks, very cool. Do you have to disconnect the MC4 wires from the batteries to charge them with a charger?

[@jehugarcia]

No it’s just a bolt, you can connect multiple connectors at same time

[@eugenesaville226]

Correct me, the rack batteries seem pricey they seem to be around $2,200 each , similar price as a additional Ecoflow xtra battery am I missing something?

[@jehugarcia]

Wrong those are $1200-$1500 I have links for them

[@luxbeltran]

Current Delta Pro DO NOT come with the XT60I to MC4 connector.

[@vmoutsop]

Yeah but if you put a 2k or more load on the eco flow, the battery will never be able to charge it fast enough through the xt60 connector to keep up. Plus the solar cables aren't big enough to properly handle the potential output from the server batteries. Won't they overheat?

[@1ENDUSER]

I believe you'd just have to change out the cables on both ends. The mc4 to battery terminal to server rack batteries & the cable with the xt60i to higher gauged. Plus the amps are limited to what the delta pro is which is 15amp max.

[@jehugarcia]

The deltaPro can only load battery 15A. cables are properly sized.

[@Yaveren]

Try it with the ultra

[@junkerzn7312]

While you can connect these batteries in series, it generally is not reliable because a low-voltage BMS shutdown of one of the series-connected batteries will prevent the other battery from being able to balance, as well as cause bootstrapping problems to reactivate the BMS. And a high-voltage shutdown can cause other problems. Some batteries are documented to allow series connection, but this does not necessarily fix all the issues and reliability can suffer. In particular, people do connect 12V lithium-based batteries in series, along with a whole-battery balancer (or several). But that options doesn't usually exist for 24V and 48V batteries. So generally speaking you do not want to connect lithium batteries in series. It will work just fine as long as the batteries never hit a BMS disconnect condition, but because it might hit a BMS disconnect condition it isn't reliable.

[@ericklein5097]

An excellent reason to ditch the BMS and on your server rack batteries and just run the packs raw and use one of those voltage detection screens to monitor cell voltage with an active balancer. It's LiFeP04, you'd have to be a dumbass to kill it.

[@junkerzn7312]

@@ericklein5097 That's ... really a stupendously bad idea. LiFePO4 is more resilient than other lithium chemistries, but it is not immune to screwups. BMS's perform numerous important safety functions that can't be duplicated with ad-hoc monitoring or an active balancer. The proper solution is simply to not put lithium battery packs in series. Nor is there any need to. People with legacy 12V batteries do have a partial solution in that 12V multi-battery balancers are cheap and plentiful. But otherwise it just should not be done by us DIYers.

[@LarryRichelli]

@@junkerzn7312 To say that there is no need to need the power that two 48v lithium batters offer in series is ludicrous. I have two delta pros hooked to the dual voltage hub and I want to buy two 48V batteries instead of the extra batteries that ecoflow sells as they are way too expensive. Now by hooking up those two batteries in series only gives me 500 to 600w of power is not acceptible and is not enough power for me. I need at least 1000w of charging power so I am stuck at this point..not safe to use the 48v batteries in series and so what now. This video gets me excited and then when I look at reality it is a big let down.

[@junkerzn7312]

@@LarryRichelli First of all, I think you are wildly confused about just how batteries can be hooked together. In general, you CANNOT mix and match Power station battery systems with discrete external batteries unless they are explicitly designed to operate with that particular power station. Power stations rarely use 8x or 16x internal cell topologies. Nor can you put a power station's raw battery output in series with other unrelated batteries. I'm sorry, but that's the deal. That's the problem with getting big power stations... you can't expand them without using the vendor's (typically expensive) expansion options. -- I think you might also be miscalculating. Lets take a 48V 100Ah LiFePO4 battery. The manufacturers charge and discharge specs depend on the battery but typically such a battery CAN be discharged at 1C, which is 100A. 48V x 100A = 4800W. Two 48V LiFePO4 batteries in parallel can easily discharge at 200A. That's 9600W. People construct 48V battery banks with 6 or even 12 such batteries connected in parallel. That's a lot of power capability. Look at, for example, 48V EG4 LL batteries (just google that). Obviously you need to size fuses, wires, busses, and breakers properly to handle the amperage. But it isn't that big a deal. Large paralleled 48V battery systems can drive tens of kilowatts of load. Provisio: When properly designed. And given what you are trying to do, that might end up being a "no" for you.

[@Dturn77]

Not sure if the fets in the bms are rated for that high of voltage.

[@KuramaKitsune1]

If im using that as a UPS wouldn't the ecoflow try to keep using the batteries charge, thinking its solar input? so if we leave the charger on the batteries, itd just get sucked right back into the ecoflow right?? Need to think of a way to only use the batteries when the mains power is disabled

[@1ENDUSER]

Way I use it or might work but I use it with the grid is a smart plug that you can turn on & off with your phone. You'd probably have to use a dc to ac inverter with the smart plug then to delta pro or all of that connected to a fuse block the server rack batteries are connected to. I know there would be some loss but the only real way to run off both separately while the server rack batteries can charge via solar.

[@adamsisernik4556]

I charge Delta pro from Basen Green 11,7kW 48V 230ah battery with just 8A (420W) via xt60 cable! I try with xt60i cable, but the charging is not evenly ... in 5 sec waves from about 100W to 600W, so just xt60 cable fills Delta pro evenly? I would like to charge with 15A ... Any idea?

[@Brun18ette]

Great video! With this setup, could you also be able to wire in a charge controller to the batteries to solar charge the batteries during the day?

[@jehugarcia]

Yes

[@ciscokid81]

Does the charge controller just connect to the batteries at the same time as well?

[@1ENDUSER]

​@@ciscokid81- yes since that would be a separate unit of batteries being charged.

[@AW.SO.M3]

With that configuration, how would you go charging the server rack batteries? Thinking of doing something like this with one string of solar panels only and no grid power/off grid

[@jehugarcia]

What do you mean how? with a charger of course, which one? one that does 100v-110vdc

[@DanielGoodwin-jq1oc]

@@jehugarcia Specifically, the problem with this setup as a sustainable system without manual intervention is: how to charge the external battery bank from a Solar controller? Of course I can use an AC-DC charger but really we need a solar controller to charge your "96vdc" battery bank. I haven't found a model that can do it. Do you know of one? Only "reliable" solution I've found is an AC-DC switching supply from my Solar Controller/Inverter into the Delta Pro. It requires no intervention from me on a daily basis.

[@marshyman66]

Hey buddy. Phil in the UK. You stated not to exceed using the input watts on ac or dc, when you are charging. Could you test this because as you are using the solar input, it does not have a pass through which is different when charging from mains.

[@eugenesaville226]

I have a question, is it possible to use a mc4 to input solar charging and a server rack battery at the same time as long as I don’t exceed the input voltage on my Ecoflow delta pro unit. And is there a mc4 cable out there (like a split ) cable that would connect to solar panels and the other to a server rack battery so I can be inputting by solar as well as a server rack battery into delta pro if that makes sense. Any ideas would greatly be appreciated

[@captmichel8035]

Any advise on how to setup charging the 48v battery bank with solar of course a solar charger controller in between then connected to the EFDP and have this working in all harmony by any chance ? Wonder if it will dance well together ?

[@1ENDUSER]

I think best way would be all in one mppt/inverter to server rack to bus bar to dc to dc charger to ecoflow delta pro.

[@LarryRichelli]

One could almost buy two 48v batters for one eco flow extra battery

[@michaelm.9947]

Have you tried this same test with the Bluetti ac200max? 1 or 2 48v 200ah batteries?

[@KT0DDW]

okay ONE more question... Can you charge the 48v battery with solar WHILE you have the ecoflow plugged in?

[@jehugarcia]

yes

[@KT0DDW]

@@jehugarcia Thank you I will TEST that in the morning.

[@KT0DDW]

@@jehugarcia NO SMOKE!!! sooooo.. I guess it works.. EG4 3k, EG4 LL, and the ECOFLOW Delta Pro STILL working yea... Thank you Again...

[@carlosreyes6448]

​@@KT0DDWdid you use a charge controller and solar panels? For charging? Or battery charger?

[@1ENDUSER]

​@@carlosreyes6448- all youd do is have a mppt/charger/inverter & eg4 batteries hooked up to it while being charged by solar. Then use a surge protector 6 outlet & plug thr delta pros through ac & charge them that way so everything is being charged by all your solar. Some DC to AC lost but its free.

[@ThePatriotPirate]

Wouldn’t this void your EcoFlow warranty?

[@thepatternforms859]

What’s the advantage of inputing 24v or 48v instead of 12v to the EcoFlow?

[@vasylsadoviy1644]

You would not get full charge speed for 12v battery. For my delta 2 i got only 100 watts.

[@LuisCastillo-i2l]

Deseo saber si puede hacer para mi un banco de batería a48v para usarlo con inversor Sungold power to6048 pero el banco de batería yo tengo que llevarlo a Sto Dgo Rep Dom por lo que tiene que ser algo parecido Ali que hiciste con delta Ecoflow ya que no puedo llevar en el avión una batería grande Si puedes hacerlo Iara mi me puedes enviar el modelo y precio Gracias

[@biehpham8323]

Can you try this experiment on the bluetti ac200 max?

[@davidsimoneta8513]

Wouldn't it be less expensive to use a "good" all in one inverter/converter mounted on the side of a diy battery rack... with wheels? You'll be able to manage energy from solar, grid and batteries with less restrictions...😉

[@jehugarcia]

Would be less expensive to not usa any of it.

[@davidsimoneta8513]

Of course...😉 ...but the 15 A limit for solar input in the powerflow is a huge bottle neck for this application... what's why I though about making "portable" an all in one inverter/converter instead...

[@jehugarcia]

you need more than 1.6kW charging on a portable unit?

[@davidsimoneta8513]

@@jehugarciai.e. for ev ac-charging... but in this case you'll have less expensive options for the inverter anyway... I'm still thinking about a 20 kW diy portable dc fast charger...🤔

[@davidsimoneta8513]

@@jehugarcia are you planing others DIY solutions for portable EV- charging?

[@colbertshawn641]

Will this work with the delta max?

[@1ENDUSER]

Will work with any solar generator as long as you stay within its voltage of solar charging & also having the connection it needs to charge it.

[@mindefei]

Can this setup to charge 2 EcoFlow delta pro at same time?

[@edwashingt0n]

Would this work using the LG Chem 48v 9.6kwh batteries Battery Hookup sold that don't have a bms??

[@jehugarcia]

batteries are batteries, they always work until they don't.

[@edwashingt0n]

@@jehugarciaMy concern was about having no bms...but I'm gonna take that as a yes. No bms other than the echoflow needed...

[@KT0DDW]

can you do it the other way around? Eco to battery?

[@1ENDUSER]

Yeah just with a ac to dc converter. There would be some loss but it would work. The ac part of inverter connected to delta pro outlet then its dc end to the batteries while you can charge delta pro with is solar input.

[@daughteroftheking4629]

I have 2 24volt batteries. Can i use them instead of the 48? Like wire series?

[@clevernduruza8624]

Yes you can

[@AndraeHenry876]

Want you to make a video like this with the smaller unit the eco flow delta 2

[@ericklein5097]

It would be disappointing because all the smaller units have such limited MPPT's

[@AndraeHenry876]

@@ericklein5097 that’s true .. thank you

[@1ENDUSER]

Tuber Jasonoid does it with small units if you wanna see it done.

[@tlteal]

@jehugarcia - I have Delta Pro with two 48v 51.2v batteries and same connection you have and only seeing 400w charging. Are you seeing more because you have 4 of them together and the amps are higher? I'm genuinely asking because I don't know. Thoughts? Thank you!

[@angloblaxon]

Check out the xt60i plug. It has an extra pin. Xt60 is limited on ecoflow. This sounds like your problem.

[@tlteal]

@@angloblaxon no that wasn’t it

[@adamsisernik4556]

I got 51,2V Basen green 11,7kwH battery. Output from BG battery is 50Ah (200Ah max). After a minute of charging Delta pro with a power of 15.5A, the output power from the BG battery started to drop to 3A and then to 5A, thus minimally charging the Delta Pro in waves. Could it be a power output problem with too much amperage (DP max input via xt60 is 15A) or is it Delta pro or xt60i cable problem? How can I solve this?

[@beargang8853]

This is great but I’m looking for something that chargers the battery from an outlet. I am a trucker and have a blutti thinking a outing buying the 300max I think it’s called and just getting there batts but it’s expensive and when I see other batts there cheep just don’t have the plugs like blutti

[@jehugarcia]

It’s called a charger

[@beargang8853]

@@jehugarcia I know your not that dumb to not understand what’s I’m saying so I have an inverter I have a blutti battery it gets charged by the outlet it chargers the other battery’s connected to it with out having the extra stuff just 1 connect I’m positive there a way to get them to connect to a different battery and do the same just haven’t seen someone do it yet don’t be a smart ass when you don’t understand

[@1ENDUSER]

You'd just need a dc to dc charger. One end connects to your trucks battery thats being charged by the alternator & will also charge your bluetti etc or another solar generator or extra battery.

[@ericklein5097]

I would stay away from the Bluetti stuff. Go read some forums, the number of issues people have after spending several grand is mind blowing. Worse, is the amount of time it takes to make it right if that ever even happens.

[@beargang8853]

@@ericklein5097 thanks I have a PS70 I won from them and a EB3A there smaller stuff the EB3A works great zero issues the PS70 if it fill any movement it turns off I talked to them about it and yeah they are bad at warranty stuff because they want you to make a video of it doing what it’s doing I just stop replying to them but still love the EB3A

[@terriblehans]

How you can charge the big batteries with solar in that configuration?

[@jehugarcia]

Plug your solar panels to your delta, then turn your AC plugs ON and plug a 48v charger to charge your rack mount Batteries.

[@1ENDUSER]

Have a separate mppt/inverter/charger to charge the EG4 batteries with your solar is another option then go from there as shown in the video.

[@jeffmarg1535]

How about on the DPU?

[@Moes_Prep_and_Tech]

i saw jasonoid do it in a video

[@keithhart3212]

Downside is 800w, can charge solar for free with 2 400w solar panels. You'll pay for those battery banks. Downfall is only 800w, Id need for air-conditioning so that won't work. If anyone needs under 800w just get a couple solar panels and game over. Cost is up front only, then you get free charging. Oh, and it'll last forever, not 3 day forever, but as long as sun shines... Just saying,,

[@angloblaxon]

The point is you can expand the ecoflow without staying in their overpriced ecosystem. You can even add a stronger solar array to these batteries and go above the limited specs of the ecoflows mppt. The ecoflow pro spare battery is pretty limited as it's just a plug to the ecoflow and a power button.

[@rodolfoserrano3676]

What is the point on connecting the batteries in series?!? There is none

[@zodiacfml]

to get 48v

[@jehugarcia]

You only need to connect cells in series if you need more that 3v. Literally all battery packs above 3v-4v have cells connected in series

[@daytekone]

like Jehu said in another Comment, Delta pro can pull a max of 15 Amp.. no matter what the Voltage.. by plugging batterie in serie you double de voltage instead of doubling the amps by connecting it in parallel .. following the watt calculation of W=A*V ( watts = amp times volts ) you get double wattage for charging .. 3.6kw delta pro will need ( 3.6/1.6 = 2.25 ) about 2h30 to fully charge instead of (3.6 / 0.8 ) almost 5 hours.. with 1600 watts of charging at 96ishVolts you still can charge the unit even if you are pulling 1000watts of power compared to charging it at 800 watts 48V... so yea .. electrical connections matters :)

[@dlbeers1]

I have a DP I advise do NOT exceed the 150 v In contrast the amps will be regulated on input . As in I have 3s2p strings of 47.24 v panels and so 3x47 for voltage is under but panels are 9.07ams max x 2 . Anyway don’t exceed 150v void warranties is what I’ve heard

[@Hax0rZ1]

Cool for those who can afford 1 battery and the delta pro shelling out $5k ... these setups are for rich people who have thousands to throw around. Not for the avg person.

[@ericklein5097]

The Delta Pro..yes $1500/$1600 5kwh LifeP04 packs are a pretty decent deal. Yeahs its 300'kwh but you're getting the box, the BMS, and all that other stuff so look at it more like 200/kwh for the raw cells. Not terrible.

[@timothymsupreme]

I have 4 ecoflow deltas going to 2 ecoflow smart panels for 7200w each panel for the home. I want to setup rack batteries and a separate eg4 charge controller then charge the ecoflows from their solar input from batteries, while charging the rack batteries from solar. How do I charge 4 eco's at same time from rack batteries and charge them from solar? The reason for charge controller is we can take greater voltage and amps from solar than the Deltas can directly, thus making solar configuration better and more efficient.

[@1ENDUSER]

Simplest way & safest would be add a AC 6 plug surge protector to the EG4 solar/inverter charger & plug the EF pros to it. Yes there will be a loss in DC to AC transfers but its easy, safe & quick to do.

[@timothymsupreme]

@@1ENDUSER I want to go from the EG4 to rack batteries (maybe 6 of them). Charge with EG4/Solar. Then charge the deltas from the rack batteries. Any clear solution for that. Should I do what he has done in this video, then get a 4 way MC4 splitter and plug in the deltas there?

[@1ENDUSER]

​@@timothymsupreme - yes thats one option as well as the option I stated as a comment. That would be the simplest way. In this video you still have to make a mac4 to xt60i cable or buy one then hook them up after the EG4 batteries are all charged up.