Make Your Power Station Last Longer! Power Queen 200AH LiFePO4 - DIY Expansion Battery!

Couldn't you just put a cheap inverter on the battery and plug the power station's AC charging cable into it?

So you used two to double the amps. Its still not a bad price but you can get a 12v to 48v 10a step up converter for about the same price. so a little less wiring to deal with.

nevermind its way more expensive but probably more efficient.

Can a dual fuel generator be used to recharge the Power Queen 200ah? I'm thinking of buying a power station and an external 400ah battery for Vanlife.

I think it'd be more efficient to connect multiple batteries in series. All the heat dissipated by the heatsink is energy lost.

Have you used this concept with the Bluetti AC300? I’ve watched you use the 48v rack battery as an expansion battery on the AC200 Max. I’ve read and watched videos but still slightly confused.

You can connect any volt battery to the solar connectors on the AC300. Since it’s dual mppt, you can use two batteries or the same battery with two connectors.

My question is this: do I need fuses on the battery wires? I know the AC300 has the amperage you can set, but as protection, should fuses be used?

There are many sales right now on 48v batteries… Is it safer to use a rack battery or the regular setup for this use?

Thanks in advance! You are my inspiration to do this stuff on my own!

Hi everybody. I have a 60ah lifepo4 battery which I charge with a 200w solar panel, for my camping. From this battery I want to charge a small 43ah(518wh) power station which has 36v 5A input limit. What is the proper step up converter (input - output) for this combination? 24v or 36v is better?

sir i think your battery is compensating....

Is it possible for the ac 200 L to recharge the onboard and this expansion from the 200 L dc solar or ac charging?

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

I had high expectations when I saw the thumbnail of the video was a disappointment

Great video! How could I use a 36V battery (50 amp hrs) as a charging source? Would I skip the converter?

What's the voltage range of the charging input?

Could you do the same with that battery and a 1500w inverter and just connect it? (for newbies?)

Great topic. I just bought a Bluetti ac180 so I'm looking at what my options are for more storage. I'm just now starting to learn about solar (van) power.

Hi Jason, can you do a video of charging a 48v 200ah stand alone battery with pv and charge controller? I'm sure many beginners like me would like to see for expanding storage for their power station. Your videos are so clear to understand. Thank you!!

Someone may have ask this already…….but……If you do that with a power station that has a low solar input (like 200 watt max). Could you connect a solar charge controller to the battery and just leave the power station connected to the battery all the time??? I have a Lifepo4 power station with that limit. Where I live you don’t always have perfect solar conditions. Rather than buy a whole new power station it would be cheaper to buy a bigger charge controller and add the battery and panels. If it wouldn’t ruin my power station.

Does this charge the external battery while charging the power station?

Can you not recharge the spare battery from the bluetti with a large solar array?

In this set up, is the fan always on?

Thanks for this video! But how we can set up a solar panel? I had a panel directly connected to the power station

Can a Solar Panel be hooked up to a Voltage Stepper to increase the voltage? 🤔

I put my old lead acid to work..24v system and have 2 leads from it in to the solar input on a 100/30 Victron. Out from 2 leads with Anderson connector. Using dolar input from the power station. An Anderson/mc4 connection. The powerstation can take max 230w , 13A..( EF R2 pro). With the victron i can change max A out so it gives me diversity. The old leadacid will be chsnged to 2 lifepo4 50A 24v. The 24v system can have days or even a week or two to fill up until i want a big charge in to the power station. Sure, an inverter is included so, yes, i can charge the P S with full AC-charge if i am in a hurry.

Or just buy two 12.8v 100Ah booster batteries instead of one 200Ah one. Wire them in series and charge at 26v 10a without any parasitic losses or the need to buy or make anything extra.

Very informative video. Would it be possible to straight wire a 36 V lithium ion 100 amp power battery to the Bluetti? Thanks

Great video, thanks for addressing wire size. I'm just a beginner so my question out of ignorance. What is the wire gauge you are using here? In videos I have seen it seems batteries of any voltage are always connected to inverters by very thick wires, thicker than what you have here, and official extra batteries for sold for power stations use very thick wires as well. However all the videos I have seen showing how to connect an unofficial extra battery to a power station use thinner wires as well. Is this type of connection a different situation where it is ok to use thinner wires than usual (but not too thin as you discussed), compared to something that normally uses even thicker wires?

I ask because all of the pre-made wires that don't require any crimping for connecting battery clamps or eyelets to other connectors that could go into a power station (like mc4 or xt60) seem all quite thin. So if it would be unsafe to use them to connect for example a 12v 100ah battery to ecoflow delta 2, then I will seek out thicker wire and learn to crimp.

i just bought the ac70 it says it can charge 12-58v @ 10amp and 500 watt. Could i run a 12 to 48v step up for a 200Ah? or 36 would be the max still

You can try the expansion battery port which is 51.2v in/out

Why not using an inverter 3000w at 250$ on amazon , connected to the battery and charge the bluetti with an AC cable at 120v from the inverter.
There would be a loss in conversion but it would charge with 1200w per h minimum, so much much faster.
Maybe i miss the point here. I know nearly nothing in electrical systems.

Do you know if this would work with the bluetti dc enhancer?

Fantastic thank you!

i was thinking to buy 2 12v 50ah batteires connect them in series to have 24 volts to charge the ac180 or ac180P that would work also but a bit more expensive

Jason is the fan blowing on the heat sinks or is it pulling the heat up from the heat sinks

Cost of battery + booster set up + charger + knowledge not to burn up the whole set up and your house may not be worth the savings from just buying the recommended plug and play add on battery pack from the manufacturer, imo.

cant you just add a cheap inverter to the queen battery and use that to charge the the power station through its ac input? Then use the provided - most of these lipo batteries come with terminal to ac charging bricks, to charge the queen battery from the bluetti. Don't know if that creates some power death loop not a power Chad, but it just seems a whole lot easier than this dyi stuff

You must also ensure that the battery discharge capacity (measured in 1C, 2C, 3C...) allows the max number of Amps you will have, else you make kill your battery in few months.

Outstanding 😮

Isn't this going to damage the PS by sending a massive current spike? There are limits to the amperage you can send into the solar input and sending a dead short across a battery seems like it could fry the input?

Can i use this battery to charge a small-medium Power Station EF River 2 Pro. AC charge 800 max, 220 Solar/DC max?

What if I dont want to use the booster? What size fuse do I use?

Are you plugging your DIY boost device into the 12 vdc input of the generator, or into the solar input?

Have you consider using an ebike battery to charge these stations? I have a 52v 20ah battery with the xt60 connections.

Great Video. I did enjoy it. However, for me, the part that was missing was charging the big battery back from the Power station. Yes, you brushed over it, but it was missing sth in my opinion. I would like to use it properly as an extension battery like the OG ones. So charging and recharging through the powerstation. I don't need a separate mppt controller if I have akk that within the powerstation already. Idk if it is possible to make an adequate replacement for the expensive original expansions. But I hoped I would find that out in this video.

So, In theory, I can plug the battery AC charger into the Powerstation while it is receiving charge from Solar or Altternator DC Charger in the Vehicle.

Could you not just buy a 25.6 volt 100ah battery and wire it straight to the battery and solar input for the 24 volt input? I also think you could use 3 12.8v 100ah batteries wired in series for the larger power stations, or 2 of them wired in series for the smaller ones. Point is, that would eliminate the need for the dc to dc converters and the conversion losses they would consume due to heat. It would also increase the watt hours of the 38.4 volt to 3840 watt hours....or am I missing something?

Market it. Vast majority of people don't want to crimp wires and mess with electricity.

can I do this with my victron dc to dc charger?? thx

Imagine with AC200L and D40 you could charge these types batteries in the day then switch them over to the DC input on the 200L at night. Very cool.

EcoFlow makes an 800W alternator charger that could be used to do exactly this since it’s basically a DC-DC charger. Downside is that the DC output cable is EcoFlow specific so probably couldn’t use it with another brand.