How to extend the capacity of Bluetti EB3A

[@ebazinam]

I just received a EB3A for Christmas so I will be using this info to increase my usage time. Thanks for making this video!!

[@edwindeleon]

Hello ebazinam, Thank you for the kind comment. I'm glad you guys are making good use of this video. Happy holidays!!

[@edwindeleon]

Just FYI: I created this video to directly answer a viewers question, "how do you extend eb3a capacity?" He is new to the solar power generator world so he wanted to keep it simple without all the frills. I do not know how comfortable he is in tinkering with electronics, voltage, amps, soldering, solar charge controller, voltage up converters, ect, ect, ect. Therefore, I did not mention that in the video bc I did not want to confuse him. So, I kept the setup as simple as it can be. So just keep that in mind before commenting. Thank you for watching. Hope u guys enjoy.

[@Zbee167]

Cool! Thanks for sharing.

[@yeneireramosestevez7510]

I am from cuba so huge problem with electricity. Which system do you recommend me a bluetty generator or pure sine converter with 12v battery for turn on basically electrodomestics in the house like fans principally. Thanks

[@edwindeleon]

Thank you for your comment. It really depends on your use case. If you are planing on powering your entire house then your going to need to get a bigger capacity system. This bluetti eb3a only has 268wh capacity. Although it has a 600watts pure sign wave inverter, Its intended more for camping or something with a very small draw. If you're planning on running a house I would recomend something with a minimum of 3kw system with a 2000watts inverter. This will only provide power for household items like a refrigerator, LED lights, fans, tv, ect ect. You will also need a solar panels minimum of 600watts. It can get very expensive using batteries and solar to power your home especially if you buy bluetti or another solar generator. A DYI will be cheaper. Alternatively, you can get a gas generator for cheaper route less complicated route.

[@Zbee167]

Getting the 12v 100ah battery with a pure sine inverter would be better in your case because this setup is more flexible PLUS you get more watt hours of operation with it. Also add a solar charge controller to this setup. With the cables and the solar panel or panels, your setup would be complete. As a bonus, get a 24v to 12v buck converter as well for a backup because if your solar charge controller goes bad, this buck converter could be attached to the solar panel to the battery directly to charge it if need be. If any component of this setup stop working, you could swap out that part for a working one, and your system will be back up and running just like it was before. If you buy the Bluetti or any power station, if a component inside of it goes bad, the whole system would be shut down and you would have to buy another whole new unit. I could imagine living in Cuba and the supply chain not being that great all the time, so, that's something to think about as well. I hope this helps.

[@garyburns1033]

I just did the same thing to My BLUETTI and have the 12v to 24v up converter. But depending on the output you want? They have different up converters with different wattage. Choose the one that works for your application. Mine will charge at 240 watts to keep up with pass through charging. But wanted to add there are several different styles of up converters.

[@edwindeleon]

Yeah, i just recently bought a 12v - 24v step up converter (going to make an updated video of it soon). It transfers energy faster to the eb3a at around 200watts. Best use for devices that consumes more than 100watts to off set the discharge rate. I ran a 150watt heater for about 5hrs.

[@UPdan]

You can buy the clips that go to female cigarette light and male cigarette lighter to bluetti solar plug in input. No soldering needed or cutting.

[@edwindeleon]

Yes, you can. But it will be useless bc the bluetti eb3a solar input is a 3.5mm barrel plug and NOT cigarette lighter plug.

[@willcool713]

I wired in a marine grade cigarette lighter style 12v outlet, with a cover, straight to my 20Ah LiFePO4 cell (which has tabs instead of posts). But I can charge it with solar that way, through my Bluetti, using a male to male cable sold for charging and jump-starting batteries car to car, which has a fuse inline. Or straight from the car. And I can extend the Bluetti with the battery cell using the car charging cable. Could probably jump my car, too, if I need it. One improvement I plan is to rewire in a three socket version of the power port which has a built-in volt meter and display. It isn't perfect, but the power management capabilities built into the EB3A (which sounds like a Star Wars droid, imo) make it all safe as an intermediate regulating device.

[@DaveSquibbSr]

Ring terminals are cheaper than gator clamps and they give you better connection.

[@ToniCastillo-rm6no]

Hi thanks for the video. How much time the 12v battery will charge the bluetti??

[@edwindeleon]

About 2-3hrs

[@yeneireramosestevez7510]

Thank you so much for this solution i have two questions can i use a deep cycle AGM battery 12 v 100Ah for this purpose? And the other questions is can i use de eb3a bluetty with equipments at the same time that thw bluetty is charging with the battery?

[@SOLDOZER]

Yes.

[@jsecret1404]

thank you for making this video

[@edwindeleon]

Glad you like it! Im actually going to be making an updated video about this bc i bought some affordable equipment that will improve this method much more !!

[@Vibe77Guy]

LiFePO is the abbreviation for Lithium (Li) - Iron(Fe) - Phosphate - (phosphorus oxide or PO) battery chemistry.

[@edwindeleon]

Yes , thank you for the knowledge!!

[@JayRSwan]

The battery has a built-in BMS, so you can charge the power queen with any bat charger that can get to 14 volts.

[@edwindeleon]

Yes, that maybe so, but I dont know the reliability of these chinese BMS in these lifepo4 batts ESPECIALLY these cheap Lifepo4 batteries they sell frm China. I always air on the side of caution. LifePo4 might not be as reactive as a LiPo bat but they can still explode into flames. So I always use these "smart" chargers that are built for the specific battery chemistry to provide another layer of safety. I understand that you can use any charger or even a power supply that can provide the correct voltage to charge these batteries but its good practice to use a smart charger that is specifically designed for the battery chemistry. I do a lot of RC hobbies and we typically use LiPo on our rig and these batteries do not have BMS. I was taught to always use smart chargers that are designed for that specific chemistry regardless if it has a BMS or not bc all it takes is one failed BMS and boom!! There goes your house! Lithium batteries are not to be taken lightly!

[@JayRSwan]

@BRObot Simulations v1.2 I feel ya, what else is neat about these "drop in ready" type is that if you buy 4 of them and wire them in series to get 48 nominal voltage you can then plug them into the solar side of the back-up giving you more amps.

[@edwindeleon]

@@JayRSwan Yes, that is correct. Unfortunately the eb3a is only rated for 12v- 28v (30v is absolute max. I tested it). So, I actually bought 2 of these 12.8v 50ah and hook them up in series for a 24v 50ah for a 2p 8s configuration. I'm able to increase the wattage from ~100w to ~200watts charge rate, which in turn maximize the power transfer. So, for example im running my projector, which consumes ~100w, im still able compensate for the 100w loss from the projectors consumption and charge the eb3a batteries with the left over 100w at the same time. If that makes sense. Also, not only I'm able to maximize the power transfer, I am also able to increase the capacity from 640Wh to 1.2KWh by running them in series. And thats not even including the 268wh from the eb3a internal battery. So technically I have 1.468KWh (1468 watt hour)!!! That is pretty cool for a very cheap $200 eb3a being able to extend it any capacity you need!!

[@ericklein5097]

@@edwindeleon LiFeP04 is nearly impossible to get into thermal runaway. Actual combustion I have only seen on one video and it was the electrolyte burning, very mild and went out quickly

[@garethwilliams2173]

The charger is set to 13.2V at 7A? This puts 93W into the battery whilst draining 172W from the Bluetti, that’s a 50% loss. Using a voltage booster with current control fed from the bluetti 12V output is more efficient.

[@baseballdude3100]

Love your video. Do you have any idea how fast the EB3A would charge if using a 500 watt inverter from the vehicle battery/alternator as opposed to the solar?

[@edwindeleon]

Thanks I'm glad you enjoyed it. Pls consider subscribing. If not it's cool no worries. But to answer your question you most def can charge your eb3a with an external inverter!! It will be the fastest way possible to charge the eb3a at only around 30-50mins at 400- 430watts on turbo mode. Now you have to make sure that you get a pure sign wave inverter with the proper wattage for the eb3a charging draw. Also you will have to make sure you connect the inverter directly to the car battery . The cigarette lighter port will not handle the amp draw. And only charge it when your car is running. Also make sure your alternator can provide at least 40+ amp while running or it will kill your starter battery.

[@baseballdude3100]

@@edwindeleon Great! to be clear, I could run the inverter to the a/c input and external battery to the solar input and the vehicle would charge both the eb3a and the external battery? or do you think I would still need the charger?

[@abnergalenojr8069]

​@@baseballdude3100h Ei lol

[@rinaldocatria4386]

Very informative. Can I be using the Bluetti Eb3a to power my iceco 40 12v refrig while having the Bluetti hooked up to a 100 ah Power Queen lifepo4 battery thru the 8mm in port at the same time? Thanks in advance.

[@edwindeleon]

Yes, you absolutely can!! It will extend the run time of your iceco 40 and if you bought solar panels you can run it indefinitely with out plugging into the grid as long as there is sun. You can also charge it in your vehicle when you are driving while the iceco is plugged in. I'm glad this video helped you. Pls consider subscribing. Its free to do. If you don't want to subscribe its ok. No hard feelings 👍. Btw thanks for watching!!

[@rinaldocatria4386]

@@edwindeleon Thank you. I have subscribed. And also liked! 👍👍👍

[@BlueThailand]

Very interesting video. But i calculated the cost of the extra parts (battery, charger, cables) and it is almost half the price of another Bluetti EB3A. I prefer to save money and buy a second bluetti

[@edwindeleon]

Yes, the external 12.8 50ah battery and all the wires and cables cost about half the price of another bluetti eb3a BUT if you buy another eb3a you will only get about 12ah (200wh usable) of additional capacity! So that means you ONLY get a total of 24ah (400wh) usable capacity with 2 bluetti eb3a V.S 62wh (855wh) from the external battery and eb3a combined!! What I'm trying to say is that you get MUCH MORE capacity buying the external battery than buying another Buletti eb3a even if its half the price!!

[@BlueThailand]

@@edwindeleon You are absolutely right. Each solution has its own advantages In my personal case, i am looking for autonomy rather than more power. Then, i prefer a "backup" : With 2 Bluetti, if on is out of order, i still have electricity The perfect product does not exist yet ;) Thank you for this interesting solution.

[@edwindeleon]

@@BlueThailand ahhh I see. YES, in your use case a second bluetti eb3a would be more suitable to your application.

[@Quietprofessional1]

Can you please leave a link to both the battery and the charger? Thank you

[@edwindeleon]

Battery -ipowerqueen.com/ For the charger they don't make that anymore. Here is another charger that I use. It's a better charger in my opinion. www.amazon.com/Battery-Charger-Lead-Acid-Maintainer-Motorcycle/dp/B0B3CV4S2Y Also here is another charger that i use toi directly charge the external battery with my portable 120watts solar panel. www.amazon.com/Intelligent-MPPT-Solar-Controller-Connectors/dp/B09W61YHH9

[@togeika]

Thanks for the vid! Wouldn't it charge from the EB3A slower, but more efficiently skipping the 110V inverted and charging from the 12v socket?

[@edwindeleon]

Yes, that is correct! Charging using the 12v socket will charge significantly slower but more efficiently because it won't have to convert the power from DC > AC > DC. Also, there will be less parasitic drain from the regulation circuit. The 110v regulator circuitry drains about 5% per hour with out any load and the 12v socket drains less than 1% per hour with out load. My way around this is, I recently bought a separate 10amp MPPT charge controller, and I can now directly charge the external battery from the foldable 120watts solar panels. So I can charge the external battery in about 5hrs straight from the sun with minimal loss of efficiency!!!

[@togeika]

Thanks for the reply.@@edwindeleon Good to have the choice depending on access and how much time you have. I have a EB3A ordered. I think it will pair up with my two 100w panels and two 12v 110AH forklift batteries for at home and the the portable EB3A by itself for motorcycle camping. I have room in the Sidecar (my dog comes along) for the EB3A. Will get a solar panel, maybe folding for travel.

[@aaronletchford]

Thanks I didnt know you X the 12.8 , 👍

[@BufordPusser582]

Thank you for this

[@simply_the_dev7588]

I"m trying to visualize how this is extending the capacity when I'm only seeing the battery just charging the eb3a. What happens when the eb3a is fully charged? Because I see it just like having a power bank for a phone. When the eb3a goes close to empty you have to connect the battery up again which is just like connecting it to the wall. And how many times can that battery recharge to 100 percent for the eb3a?

[@edwindeleon]

It's basically adding the external battery in series to the eb3a 268wh battery. The external battery is about 600wh then you add the eb3a 268wh which in combine is 868wh. I tested this with a 100w light build and ran it till both eb3a and external battery connected to the solar input charger and I got about 6hrs of run time (a little less bc of inverter inefficiency). Now i compared that to the eb3a with out ther external battery and i got about a little less than 2hrs run time. Which is about where it should new with the eb3a internal 268wh battery.

[@edwindeleon]

And when three eb3a is fully charged then it stops the flow of electricity from the external battery, which means eveything just stops where it is. Now there will be a little parasitic drain due to the charge controller inefficiency but it's very little. Imagine your phone when the battery is almost dead. You plug it in on a power bank (external battery) to extend its capacity and use it longer right? It's the same concept.

[@bared60]

Thanks for an informative detailed video, i am new to all this ,i have different brand lifepo battery 12v100ah. do you think i can do the same thing ? thanks again. and does the gauge of the eb3a charging cable would affect this ? for example ,if i buy a different already made cable like it .

[@edwindeleon]

I'm glad this video helped in some way or form. YES, you can do this with a different brand lifepo4 12v 100ah battery. As long as you are within the 12v-29v parameters of the bluetti eb3a solar charge input. As for the gauge of wire you're going to want to use the right thickness wire for the amount of current your system is going to use. So for this setup, the bluettie eb3a mppt charge controller clearly states 8.5amp draw. So your going to want to stick to 16guage (rated for 13amps) or lower (meaning bigger). You can go smaller but I would recomend to always go a little thicker just for safety measure. Btw hope that helps. Pls consider subscribing. It's free to do. But If u don't want its ok. No pressure. Thanks and have a great day!

[@stateofwander6963]

Great video! I'm really trying to decide what's best for my needs and this system ticks the simplicity box. Just to clarify though... would this also work for other Bluetti models, specifically EB55? Thank you

[@edwindeleon]

Hello and thank you for your kind words. Yes, this will work with EB55 or ANY solar generator that has a solar input of 11v or above.

[@oleksandrhirin339]

How can you be sure that your battery doesn't go below 70 percent of its capacity? I heard discharging lifepo4 batteries below 70% is killing the battery

[@edwindeleon]

@@oleksandrhirin339 its actually discharging below 20%. Staying between 80% and 20% range thia battery can last 10yrs. I

[@edwindeleon]

I connect a meter that tells me what percentage the state of battery is at everytime i use it to stay within the 80%/20% range

[@oleksandrhirin339]

@@edwindeleon that is logical, but how come the youtuber tells nothing about it

[@hogi27]

Ooh bless. Thanks for this.

[@edwindeleon]

No prob! Glad to help!

[@Ігнатович-я7п]

Іs it possible to charge the Bluetti EB3a with lead-acid car batteries?

[@edwindeleon]

If you mean charging it in your car, then YES you can. But you have to keep the car running to prevent the lead acid battery from completely discharging. Now If you are taking about charging it directly from lead acid battery with out the car then i would highly not recommend it. Technically, you can charge it with lead acid battery but it's not preferable bc lead acid battery drops voltage too quickly and you will not get a full charge on the eb3a. Also, the capacity of lead acid is not great and you can only discharge it to 50% and if you go past that it will get damaged.

[@uhjyuff2095]

yeah, pickup a goal zero yeti lithium car charger adapter and it will plug right in to a lead acid battery and your eb3a and it will automatically stop before the lead acid battery drops to a dangerous level.

[@Louiepr60]

Yeah that helps thanks.

[@tattoolimbo]

If you have the solar going into the eb3a why couldn't you charge the aux battery straight from the eb3a since it uses the same style battery?

[@edwindeleon]

You can charge it directly from the eb3a. That's exactly what I did on the video.

[@Bacon7666]

Nice explanation, but I had to lower the volume all the way because of that annoying constant tapping on stuff with your finger nails.😂

[@rickdavid1795]

Excellent idea

[@mannyfragoza9652]

you can use a 24 volt battery i wonder why you went with the 12 volt? DC input VOC 12-28VDC / 8.5A

[@edwindeleon]

24v - $$$$ (around $600) 12v - $ (around $150) Also, my aplication does not require a 24v⚡ external battery.👍👍

[@mannyfragoza9652]

@@edwindeleon the higher the voltage the more watts you will get and the faster you can charge the EB3A BTW you can get a Valence 24 volt Lithium Iron battery for 149.00 plus shipping of course

[@cyberhawk99]

I'd like to run my 200 watt solar panel into an external mppt controller and out to external battery such as what you're using. I then would like to run a cable with a 7909 end from the battery or mppt (not sure which one would work) to the EB3a. My main complaint about the Bluetti EB3a is not being able to leave the solar connected when it's dark or light is too low. The input light blinks continuously and drains the internal battery. I thought if I wired it in the way as described above, the external battery would be used as a buffer of sort so I can get rid of that flashing input drain. Another idea I have is placing an inline timer switch and program it so the solar panels can only charge the EB3a during peak times. Anyone have any ideas or suggestions?

[@edwindeleon]

That actually sounds like it would work. Maybe try it out and test it. Using the external battery as a buffer, In theory it should work to keep eb3a frm draining whilst having solar connected during night time. It will continuously drain the external battery. Also if you get an external mppt it might have a fail safe to keep solar frm draining it.

[@edwindeleon]

The only thing i was wondering is if it will have some negative effect by having an external MPPT connected inline with the eb3a internal mppt ( having 2 mppt connected in the same circuit). One possible solution is connecting an up converter (12v to 24v) between the external battery + external mppt and eb3a to act as a safety to keep both mppt isolated frm each other.

[@vinnychang5399]

There’s a post on the bluetti forum about using a capacitor inline with the barrel plug that fixes this issue

[@LuisGonzalez-lm3mv]

hi bro excelent video. Is your Eb3A UPS function working properly, have you tried having something connected a long period of time?

[@edwindeleon]

Hey Luis, Thank you for the very kind words. Yes, I have tested the UPS function on mine, and it is working. I have 2 eb3a and im using one as UPS for my PC .

[@LuisGonzalez-lm3mv]

@@edwindeleon that’s excellent news than you.

[@brobrozbox]

Could you just use a 24v battery instead of buying a converter???

[@edwindeleon]

Yes, you definitely can!! Is also more efficient that way and also charges the eb3a ALOT FASTER than 100w. It will basically max out the thre charge controller at 200watts charge rate. Only draw back is a 24v 500wh lipo4 battery is much more expensive $$$ compared to a 12v 500wh battery.

[@OCMOOMOMO]

You should account for heat from the converter and it’s efficiency

[@maxsakh]

isn't it a better idea to charge your battery directly from a solar panel? You will not lose power on the inverter transforming.

[@edwindeleon]

Yes, that's also another way to charge an external battery but you're going to need to buy an external MPPT controller and going to have to program it, which i do not have. Im just using what i already got laying around the house. In addition I wanted to keep it simple bc the person im addressing in this video is new to the solar generator world and I do not know how comfortable he is in tinkering with this type of stuff.

[@keepsmiling1484]

Would it be possible to charge the battery directly with a solar panel, then have the battery directly connected to the bluetti permanently, so you wouldn’t need to keep switching wires. You basically use the outlets on the bluetti but have a far larger battery capacity always avaiilable????

[@ericklein5097]

@@keepsmiling1484 you need a solar charge controller which the EB3A has internally so its either the solar panel or the other battery for the DC input (solar input). The panel straight into the 12V battery will be around 18V

[@MrCharmz81]

@@edwindeleon Yeah I agree with what you said, it's more of a hassle getting more parts for this and that, to program mppt charge controller, your method is simple. Charger plug directly in power station solar panels plugged into power station, connect alligator clips to battery, boom both charging.

[@Totogita]

I added a24 volts up converter but it got very hot after a while. I stop using it because heat means waste.

[@edwindeleon]

Theres is always heat from any type of electronics. There will be always waste. It justy depends on how efficent the device you are using. I my self akaso bought a up converter on Amazon for around $25 . It also has heat. I tested its efficiency and it was about 95% efficent and that 5% goes to heat and waste. But i still use it bc it still efficent enough. Now if it was less then 50% efficent then i won't use is bc it will just be a waste. My point is you will NEVER find any type of electronics that is 100% efficient. Your PC, TV, smart phone, batteries, ect ect ALL produces some kind of heat. Even your eveyday car. Now do we stop using them just because Its not 100% efficent?

[@nyeinhtike.1178]

I have a problem to charge bluetti eb3a with my gas generator (220V - 250V). How can I solve?

[@edwindeleon]

Ok, this is very difficult to diagnose as I do not know all the information required to assess the problem. But with the information you provided me i will try to help. First, does your gas generator have a pure sign wave inverter? Many gas generators have modified sign wave and if that's the case the eb3a might not charge properly. 2nd is there might be an issue with the gas generator or the eb3a a/c input. If you plug your eb3a on your house outlet and it charges then the issue is your gas generator. Hope that helps.

[@joanbroyles9802]

My 3ba wouldnt run my cpap all night.What larger one can i buy

[@Zbee167]

If you buy a 12v 100ah LifePO4 battery and connect it to the Eb3a like he did here, it would run for quite a while. The answer is to add batteries for longer run times. I hope this helps.

[@luigimarcelli7787]

Buongiorno, la ringrazio per il video che ha fatto. Ho già collegato anche io una batteria da 30 AH, con lo spinotto alla porta DC input Port , ora vorrei sapere se è possibile mettere un raccordo a --- T --- nella porta DC input Port in modo da inserire oltre allo spinotto che porta corrente dalla batteria, anche uno spinotto che porta corrente al EB3a dal pannello solare. Grazie saluti

[@edwindeleon]

Hello, sorry I do not speak or understand Italian. I speak English only. I used google translate to try to understand your comment. "Hello, thank you for the video you made. I have also already connected a 30 AH battery, with the plug to the DC input Port, now I would like to know if it is possible to put a --- T --- fitting in the DC input Port so as to insert in addition to the plug that carries current from the battery, also a plug carrying current to the EB3a from the solar panel. Thank you" I'm going to try my best to understand what you are asking. So if your talking about connecting a 30ah battery and solar at the same time using a T fitting to the DC MPPT input I would not recomend it . You might fry and damage the solar panel or the eb3a. Now if you are talking about connecting two 30ah batteries on a T fitting then YES, you can. It depends on the T fitting if its a series or parallel configuration. I hope that answers your question. The translation from google translate is not very clear.

[@Mapleaple]

Problem is what happens when it's fully charged. There's nothing that shuts off the power from the battery unlike a solar panel with a built in control. The only thing that stops it from overcharge is the actual EB3A. Confusing

[@edwindeleon]

There is no pronlem at all. Once the eb3a is fully charged by the external battery it stops charging completely. Then once you start draining the eb3a the external battery will start charging the eb3a as needed until the external battery depletes completely. It's really that simple. I use this all the time to run my projector when I'm at the beach or at the park. It extends my watching time to about 14hrs instead of 2hrs when only using the eb3a alone. It works flawlessly!!

[@edwindeleon]

Also, just for food for thought, the external battery does not push energy to the eb3a. The eb3a pulls the power from the battery. So basically if the eb3a is FULL it will not pull any energy from the battery. And the battery just sits there idle waiting for the eb3a to request for more power.

[@uhjyuff2095]

Should have just left the eb3a car charger and added a cigarette outlet to the external battery. That way the fuse inside the eb3a is left intact.

[@edwindeleon]

I already added an inline fuse between the battery and the eb3a. But Thank you for the tip!

[@oleksandr15437]

Thanks for showing the idea in practice. Are those connectors safe? I mean will they hit with electric charge if touching one of the "scissors"'s metal part?

[@edwindeleon]

It is safe to a certain extent. There is a risk but as long as you know what you are doing then it's safe. You can also put electrical tape on there terminals to keep them safe.

[@LevelDroneRCX]

That’s one way to do it

[@edwindeleon]

Yes, one of the easiest way to extend the eb3a!!

[@supremeautomotive6749]

Better to start off 100% then connect battery it will pull from battery first

[@pocketchange1951]

👍👌❤️🇨🇦, thanks

[@aaronletchford]

Don't you use xt60 or xt90 connections

[@romanilienko2357]

You could just use mc4 connectors without destroying original solar cable

[@edwindeleon]

Yes, thats what i was going to do. I bought a mc4 solar charging cable bc people said that the eb3a does not come with the mc4 cable. But when i received the eb3a they included the mc4 cable for free. So that means I had one extra mc4 solar cables that i did not need. So, instead of returning it to Amazon I decided to turn one into a clip style connector.

[@jcoats5529]

I just built my own generator with an Renogy 100 ah and an pelican case. Twice the power at half the cost

[@edwindeleon]

Awesome!! I'm also currently building one with a 2.4kwh / 200ah (2400wh) battery with a 2000watts inverter but it will be for home use as its too big and heavy to be portable like the bluetti eb3a. I use eb3a when I'm on the go like camping or going to the beach.

[@edwindeleon]

Wait a sec, where did you find a Renogy 100ah for half the cost of the eb3a? I checked on Amazon and the cheapest Renogy lifepo4 100ah is around $600!! AND THAT'S ONLY THE BATTERY. That's not including the AC inverter, the mppt controller, battery charger, USB Hub, pelican case, shunt, digital screen readouts, wires, fuse ect ect. I bought the eb3a on sale for only $200. It retails for $249. So, basically my question is how did you build a complete system with eveything I mentioned above for only $124 (which is half the price of eb3a $249) when the battery that you have mentioned by it self cost $600? (renogy 100ah Lifepo4).

[@ericklein5097]

No way you saved any amount of money if you bought a Renogy battery. Its the ghetto Battle Born....with the same price tag.

[@SOLDOZER]

Dont for get the 10A fuse on the + side.

[@MrCharmz81]

I thought positive goes on first, you did negative?

[@thebuddha4208]

Blue Eddie has car cable expansion set by that instead

[@edwindeleon]

Yes, I have the car and the solar cable as well. But I bought an extra solar cable and modified it to have alligator clamps at the end. So I have 3 cables in total. So I can basically charge and extend my eb3a via car, solar, and any external 12-24v battery.

[@thorodinson2530]

Same reason why I did not get the EB3A. It is lacking in the power department. Other power stations are more powerful.

[@edwindeleon]

Of course, there are other power stations that are more powerful and have more capacity than the eb3a!! You have to realize that everyone has different power requirements! Thats the reason why companies build different sizes and capacities to cater to different people. Just like clothes and shoes, cars and SUVs; there are different sizes bc everyone has different requirements and needs. So, saying the eb3a is "lacking in power department" is flawed. Just bc your power requirements do not fit the eb3a does not mean the eb3a is lacking in power. For my needs the EB3A has more power than I need for a great price point of $200. And I am able to extend it to any capacity I choose if it needs be. Perfect for my use case!

[@victorjoseph8948]

eb3a is limited to 200 wats solar

[@viktor-ard-motorcycle]

If the battery voltage drops below 12V, Bluetti will not charge from it. This option is not suitable. For normal charging, you need to increase the voltage from the battery to 18 volts.

[@edwindeleon]

I USE this method all the time and let me tell you that its more than suitable and works flawlessly! The eb3a is designed to be charged on a car via a 12v cigarette lighter port. Its clearly writen on the port 12-28v so as long as you stay within that parameter it will charge. This may be true with other 12v batteries but the battery im using is a LifePO4, which is much more advanced battery than lead acid or agm. The voltage on lifepo4 batteries stays above the required 12v and the voltage does not fall under 12v until it's about 0% state of charge, and that's when it cuts out. I tested this multiple times and i get exactly 640Ah while maintaining more than or equal to 12v.

[@viktor-ard-motorcycle]

@@edwindeleon Yes, that's right, but at a voltage of 12 - 13V, the charge power is less than 100W. And at 18V it reaches 200W, which allows you to quickly restore the charge.

[@rizipt]

@@viktor-ard-motorcycle Wow dude. Learn to take an L

[@uhjyuff2095]

@@viktor-ard-motorcycle I tried it out last night. When the external battery reaches 12.0v the eb3a charges at only 1 watt but it will continue all night long and drain the external battery to below 11 volts.

[@jampam-jf8mt]

It's a very inefficient way to charge.. why not just get a cheap charge controller to charge the battery directly

[@edwindeleon]

I wanted to use what i already had laying around at the house. I just recently bought a portable MPPT charge controller and im Going to be making an updated video with the charge controller and also a step up 12-24v converter. Pls stay tuned 👍

[@jampam-jf8mt]

@@edwindeleon thanks. For anyone not bought a battery yet, they can also buy 24v batteries.. no need to use a converter

[@MrCharmz81]

@@jampam-jf8mt Fixing to buy a 24v battery myself along side the xt60 to alligator clips, plus battery charger.

[@sanas24]

You will wear out the internal battery faster with this trick 😅

[@edwindeleon]

Not true!! I believe you have been misinformed. The internal battery will wear out about the same rate as if you were changing it with solar, car 12v cigarette lighter, or AC outlet! Where did you even hear that from? And do you have any hard evidence to back up your claim?

[@ericklein5097]

There is zero logic behind this statement

[@MrCharmz81]

@@edwindeleon Right no different than keeping it plugged and charging via ac outlet or solar.

[@bolt2638]

That is the achilles heel of the EB3A. It is not expandable like other power stations.

[@edwindeleon]

But it is expandable as I showed!! Just not the official way. Did you even watch the video? lol. I actually prefer this method as I can extend it to any capacity I want!! from 50wh to 50kwh!! With other powerstations with expandable batteries, you are stuck with the company's proprietary external batteries, and you are stuck with the capacity they provide you in their proprietary external batteries. And on top of that they cost sooo much $$$$. At least with this method I can choose whatever batteries I want, and they are way cheaper than the company's external batteries. You can get a 600wh lifepo4 battery for $150-200. And for bluetti external battery cost $1000+ and they are very limited with capacity size to choose frm.

[@ericklein5097]

Very very few systems are expandable (and by that I mean have a proprietary system for adding additional capacity). I've only seen ONE that had a straight up expansion port for ANY other battery to be used as an expansion (I think it had to be 24V to match the internal battery) so you're not plugging up your DC input port at a slow rate

[@BS.-.-]

All that extra equipment cost enough that you could have just bought another unit

[@edwindeleon]

That's true but i will still only have roughly about 400wh capacity VS 640wh or MORE with the external battery. Im going to have to buy 3 eb3a to get the same amount of capacity of 1 external battery. Also, I would have to lug around all 3 eb3a whenever i go camping or hiking. Plus, I don't have any use for 2 additional eb3a. In my use case It would be a total waste of $$.

[@BS.-.-]

@@edwindeleon your not getting the full output from that battery into the other..theres losses.

[@shamwow7996]

Need to cut your nails