Using Batteries To Extend Power Station Runtimes?! 48v LFP Server Rack 'Expansion Battery'!

Does it work to connect your own batteries to a power station to extend the runtime? In this video I test a 48 volt EG4 server rack battery to see what happens. You can also charge your power station with 24 volt and 12 volt batteries at a slower rate. What did you think of these experiments?

EG4 48v 100ah Server Rack Battery with Display:
EG4 48v 100ah Server Rack Battery without Display (cheaper):
EG4 48v Battery Charger:

Recommended 12v Battery (affordable options):

Other Recommended Parts & Tools:

The use of affiliate links provide a small commission for me when you use them. Thanks for supporting my channel content and allowing me to do future comparison videos! More videos coming soon!

Video Timestamps:
Why Use A Battery?: (0:00)
Testing the Bluetti AC200Max: (1:30)
Testing the EcoFlow Delta 2 Max: (4:49)
Testing the Anker PowerHouse 767: (7:52)
Testing the Pecron e2000LFP: (9:17)
Other Things to Think About: (12:00)

#jasonoid #bluetti #ecoflow #anker #pecron

[LordAshura]

Love the explanation. I made a 48 volt 50 AH setup with mppt controller that can accept 100v 20a of PV charge from the solar panels.
I then hook up the Ecoflow Delta 2 max to it to get 500-1000 watts with xt60i cablces.
This allows me to charge up my delta 2 max while not being limited a mere 60 VOC from Solar panels limit from its own mppt.
I can then simply move the Ecoflow to wherever I need while continuing to store the solar power by having it sent to the 48 volt battery.
This is way cheaper than trying to buy the spare battery unit.

[ENDUSER]

Finally someone puts up this idea into a video I've been wanting to see in a long time. Using server rack batteries as battery generator expansion pack. Thank you!

[buenobenji]

This seems like a really interesting solution to getting around the Anker 767 solar power input limitations. I’ve been struggling to find a combination of solar panels for my camper van roof that would max out the 1000w input.

I would find it really interesting to see a test for this using a smaller and cheaper capacity 48v battery (50Ah?), a quality charge controller and enough solar panels to keep the 48v topped up while outputting close to 1000w to the Anker 767.

[tdapple]

Beautiful Presentation & Illustration. Thank you 🙏 for this Brother

[damonried]

I use solar generators for emergency blackouts (Texas Freeze 2021). Since the manufactures backup batteries are only two to three hundred dollars more than a base unit, I purchase multiple base units. If I had to bug out I can easily grab them and the portable solar panels, as opposed to cheaper, but more unwieldy, 24v batteries.

[Speed]

Nice! Almost everyone that owns one of these power station has been asking this question. Jasonoid to the rescue!

[rogerkerkmann]

Ok, now lets hook up the server rack battery directly to the solar generator😮, no extra battery chargers, no converter loss! Just purchased bluetti 180, I'm going in🤪👍

[OffGridSolarSmartHouse]

This is a great way to extend the run time for your solar generator.

[lamesadave]

Jason: Assuming your PV array output voltage is over 60v, would it be possible to use a charge controller with a 60+v input and a 48v output to charge the Anker Solix 3800 directly into the XT60 port(s)? Thanks

[BeefNEggs]

One thing wasn’t clear to me. So on the bluetti 200max was the pv mode on or was the car charge mode on for each battery type?
Also is there a way to charge the 48v or 24 volt from the 12v DC 30 amp output? Boost converter would work, right? Be nice if power could go both ways especially when solar is in excess during the day. You could use an AC charger but avoiding the conversion losses is my goal. The boost converter has maybe 10% loss.

[danielvillaquevedo]

Would this be same process for the f3800? Would I be able to get two solar inputs from 1 rack battery?

I am considering getting a charge verter as a way to hook up to a non inverter generator

[Card_addiction]

Great information Jason, did you run a capacity check on the 24v battery from battery hookup? Thinking of buying a few for the same purpose.

[thundercats]

You can just connect your battery to a proper inverter and charge from the mains station input. Right?

[marcdoll]

Learning a lot from your videos. Do ou know if the VTOMAN uses the 5120 port on the solar input?

[hexdg]

Great video! I have a AC200P and 24v LiFePO4 and I also didn't know you can simultaneous dual charge from the same battery. I will try that with my Bluetti DC Charging Enhancer. In my case, what fuse and cable size do you recommend to connect the AC200p and 24v? If I go with a 48v battery, would that existing wire and fuse setup work? I'm interested in the 48v EG4 for the future but not sure how that rack mount battery will do inside a trailer storage compartment. Do you have a coupon code for the EG4? Thanks for all your great videos and instruction!

[alaingoyette]

Sorry for the late question, did the Anker have passthrough charging on dc extended battery? Trying to determine if the extended battery will be used up first during Anker charging (less then 100%) until empty then the remaining Anker battery is being used until 0%? I hope the question makes sense :)

[davidgalindo]

Great job janson.
Will it work with the delta pro, as well.
Thanks

[stuartstuart]

Jason, have you experimented with used house solar panels, using them to charge solar generators? It looks like they can be purchased pretty cheap, like $80 for a 260 watt panel.

[kateoshea]

What size fuse would you put on yhe positive cable for 12v and 24v batteries…thanks

[Steveteras]

For the anker, if I connect 4, 12 v batteries in series, I can reach 1000v charging limit. I get that, but can I charge the batteries while driving? I think I can not hook up a dc to dc charger to it, because the total battery voltage is too high at 48 volts. Comments?