Dirt Cheap 24V Preassembled LiFePO4 Battery: Beginner Friendly Tutorial!

DIY Parts List (affiliate links):

*Does off-grid solar confuse you?*
Check out my DIY friendly website for solar system packages and product recommendations, and so much more!

*Join our DIY solar community*
#1 largest solar forum on the internet for beginners and professionals alike:

*Check out my Book*
Best-selling and beginner-friendly guide to 12V off-grid solar!

*My DIY Solar Equipment Recommendations (Constantly updated! Check here first):*

*My Favorite Online Stores for DIY Solar Products:*

*Signature Solar*
Offgrid One-Stop-Shop. Best Value 48V LiFePO4, Victron and Offgrid Specific Heat Pumps:

*Current Connected*
SOK, Victron, Mr.Cool Heatpumps and High Quality Components. Fantastic customer support:

*Litime*
My favorite 12V budget battery!:

*Epoch Batteries*
My favorite high-quality 12V battery:

*Renogy*
A classic 12V solar store that has been around for ages! DC to DC Chargers and more!

*Rich Solar*
Renogy's biggest competitor! Similar products, but at a better price:

*Battery Hookup*
Cheap cell deals
5% off code: diysolar

*Contact Information:*

*FTC Disclosure Statement and Disclaimers:*
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)

DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,

[WillProwse]

Signature solar just watched the video and will include hardware for each pack! Thank goodness.

DIY Parts List (affiliate links):









Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link):



My solar equipment recommendations (Constantly updated! Check here first):








My Favorite Online Stores for DIY Solar and Coupon Codes:


-Signature Solar: Cheap Server Rack Batteries and Large Solar Panels:

-Ecoflow Delta Official Site: My favorite plug-n-play solar generator:

-AmpereTime: Cheapest 12V batteries around:

-Rich Solar: Mega site and cheaper prices than renogy! Check them out:

-Shop Solar Kits: Huge site with every solar kit you can imagine! Check it out:

-Battery Hookup: Cheap cell deals
10% off code: diysolar

-Watts 24/7: Best deals on all-in-one solar power systems, with customer support and distribution here in the USA:


Contact Information:


FTC Disclosure Statement and Disclaimers:
Every video includes some form of paid promotion or sponsorship. Some links on this youtube channel may be affiliate links. We may get paid if you buy something or take an action after clicking one of these. My videos are for educational purposes only. Information is subject to change/update at any time. Electricity is DANGEROUS and can kill. Be smart and use common sense :)

DIY Solar Power with Will Prowse is a participant in the Amazon Services LLC Associates Program,
An affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com

[gymcoachdon]

Will: "Let me show you beginners how it is done...:
Will later: " Oh my gosh, the battery is working! How cool is that?!"
:) Love when the teacher is excited that it actually functioned properly when he finished!

[trentrogers]

Excellent video Will! I’ve run the numbers several times on those battery packs trying to come up with a more cost effective solution versus buying server rack batteries but by the time you add the bms the savings just aren’t there. This is especially true if you start to take into account the features like built-in breakers, communication ports for the BMS, etc. In this video you implied that there may be a way to build a large battery bank using fewer BMS‘s. Obviously that would help make the whole thing more cost effective. I would love to see a video or hear your thoughts on a big DIY build that might compete with the 30 kWh a full server rack from EG4 give you.

[brikshoe]

I got some of the "extra" smoke out of a BMS when I plugged the balance connector in without ensuring that each balance lead was wired according to the diagram. The easiest way to make sure that it is correctly wired -- before plugging the balance connector into the BMS -- is with the multimeter negative lead on the black wire connection and then touch each white wire with the positive multimeter lead -- in order -- and the voltage should step up at each white wire .... 3.6v, 7.2v, 10.8v, etc. I got lucky since they had programmed extra smoke in the BMS and it did no harm -- the first time.

[mickeybaron]

Hi Will, Great video! Brought back many memories of the early days in your camper when you did many beginner videos for us. Enjoyed watching!

[KrisKanyon]

Will, please see if Signature Solar will have these battery packs for sale again.

[rebelyell]

I bought 8 of these in January and they are working flawlessly 🙂 I was just going to by 4 more but they are no longer listed on Signature Solars web site... oh well. For those that bought them the bolt sizes should be M6x10 for terminals and M5x6 for balance leads.

[cfeigel]

I'd love to see a thermal image of those welded bus bars under heavy load! Probably a much better, more consistent connection than we get with the old-fashioned bolt-down individual bars. How about a quick comparison video?
(I'm loving how fast this field is progressing! Thanks for keeping us up to date!)

[HolmesProspecting]

You sound so confident putting it together and so surprised when it works. I love it!

[pewpewwithtodd]

I'm building my first battery next month, I've been watching a lot of your great videos to learn as much as I can.

[Pey]

I'll love to see you get 3 or 4 of this pack and show how to parallel connect them not just on the main + and - terminal, but all the terminal on each cell like parallel connect the balance leads.

[AlmightyPyro]

they don’t seem to sell them anymore 😭

[marksmith]

Hey Will, Another great video. I purchased mine from Signature Solar and received last week. Very glad you verified the thread size big help. Also have the same OverKill BMS have not installed due not having hardware. I'm in the process of building a mobile Solar Generator. Purchased Growatt 3000W 24V from Signature Solar also. Going to install inverter and battery on Hand Truck. Purchased yesterday 4 Slfab Elite 370W solar panels for the system.

[kdiver]

I'm building this pack and how could you not love this BMS. The paperwork is hysterical. "If you need help I will help you, If you screw up I will help you, if you kill it I will refund your money, send me back the dead BMS" LOL you can't go wrong. The only thing I will do is use SS set screws and bottom them out at 15 inch pounds. That way when tightening the nuts down I can hold the stud made by the set screw still. That way there is not chance of stripping the threads. Shipping of the BMS was very fast.

[MadMarv.]

I love the intro so simple but it works. Each one just a little different like Kramer coming through Jerry's front door. Best one was when will was on the bench dragging the pack across it.

[stevetuttle]

Thanks for another great beginner video! I’m sure you have a lot of new subscribers that will love this. You have a wonderful way of explaining things that make it so easy for people new to the industry. Your bms hook up instructions are second to none!

[Aerogrow]

I'd suggest a hydraulic crimpers for battery wires; learned my lesson hard way (crimp worked its way loose over a year and got a bit melty on wire). Luckily caught it during high load test (100amp) before the setup made it into my RV.

Cheap hydraulic crimps like 20-30 bucks on amazon now.

[crosseyedcricketfarms]

These batteries 🔋 and your videos are getting better and better. Wonder about a Victron BMS with these welded battery terminals…..?

[alphabetwiz]

I saw this battery pack when I was in search for a battery, but with the cost of shipping, and a BMS, the price was practically the same as an Ampere Time battery. I went with the fully built battery instead.

[markjauregui]

I received 8 of these today, shortly after ordering them about 2 weeks ago they took them off of their site and no longer offer them for sale. Good thing I acted fast.