12v LiFePO4 Battery Kit from Amazon.com - Tested and Reviewed 

I also need to mention that I will have some beginner friendly videos coming out! Step by step that literally anyone could follow. Super useful for first time solar system builders :) And I'm also designing a monster sized system that can charge an electric car. Lots to come! ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Does off-grid solar confuse you? Check out my DIY friendly website for solar system packages and product recommendations, and so much more! www.mobile-solarpower.com Join our DIY solar community! #1 largest solar forum on the internet for beginners and professionals alike: www.diysolarforum.com Check out my best-selling, beginner-friendly 12V off-grid solar book (affiliate link): amzn.to/2Aj4dX4 If DIY is not for you, but you love solar and need an offgrid system, check out Tesla Solar. Low prices and great warranty, and they can take your entire house offgrid with their new Powerwalls: ts.la/william57509 ~~~~~~~~~~~~~~~~~~~~~~~~~ My solar equipment recommendations (Constantly updated! Check here first): 12V/48V Lithium Batteries: www.mobile-solarpower.com/solar-batteries.html Solar System Component Directory: www.mobile-solarpower.com/solarcomponents.html Plug-N-Play Systems: www.mobile-solarpower.com/full-size-systems.html Complete 48V System Kits: www.mobile-solarpower.com/complete-48v-solar-kits.html DIY Friendly Air Conditioner/ Heat Pumps: www.mobile-solarpower.com/solar-friendly-air-conditioners.html Complete 48V System Blueprint: www.mobile-solarpower.com/48v-complete-system-blueprint.html ~~~~~~~~~~~~~~~~~~~~~~~~~~ My Favorite Online Stores for DIY Solar and Coupon Codes: -Current Connected: SOK, Victron and High Quality Components. Best prices and warranty around: currentconnected.com/?ref=wp -Signature Solar: Cheap Server Rack Batteries and Large Solar Panels: www.signaturesolar.com/?ref=h-cvbzfahsek -Ecoflow Delta Official Site: My favorite plug-n-play solar generator: us.ecoflow.com/?aff=7 -AmpereTime: Cheapest 12V batteries around: amperetime.com/products/ampere-time-12v-100ah-lithium-lifepo4-battery?ref=h-cvbzfahsek -Rich Solar: Mega site and cheaper prices than renogy! Check them out: richsolar.com/?ref=h-cvbzfahsek -Shop Solar Kits: Huge site with every solar kit you can imagine! Check it out: shopsolarkits.com/?ref=will-p -Battery Hookup: Cheap cell deals bit.ly/2mIxSqt 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: watts247.com/?wpam_id=3 ~~~~~~~~~~~~~~~~~~~~~~~~~~~ Contact Information: I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: williamprowsediysolar@gmail.com Join the forum at diysolarforum.com/ if you wish to hang out with myself and others and talk about solar 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

You're right in that you don't have to buy them on Ali because they are obviously listed on Amazon. That being said, the ship date is 1 to 3 weeks out. Just because they are listed on a different marketplace doesn't mean they don't come from the same seller.

I am so hooked with your videos, I don’t understand a word your saying but your passion for what you do is contagious 😀.

You are absolutely amazing! You should sell your own systems. I would buy and so would the rest of the entire world!

i just bought a $450 48v lithium battery off amazon for an ebike project and I am so thoroughly impressed with the technology, the future is now. And like you said, it's super cool that quality lithium is available on amazon.

at 6:20 - "They sent this out to me.........They didn't pay me for this....." But you got to keep the batteries and that has a monetary value. Batteries to use for free. I do enjoy tour videos. Keep it up!!!

It Is Amazing That These Batteries Are Becoming So Prevalent And That You Are Experimenting With Newly Available Sources Of Power! Starting To Understand The Benefit Of The Balance Up And Down Sort of Like Tuning An Automobile Engine. Thank You!

I am glad that you are planing on a video for beginners. Bear in mind that the average Joe who really need this is low income and will stay away from the expensive parts. I started solar with a low cost kit in 2009. I have several low cost box to charge tablets and laptops. Remember monocrystaline may be the best but does not do well in cloudy areas. I would love to see a project that keeps the cost to the lowest minmum.

Great info as usual, Will. Really appreciate it. I'm not sure what the agnostic equivalent phrase of "You're doing the lords work" is, but you're doin' it! Big high five.

I went with CALB cells. About $550/100Ah with busbars. Went with bottom balance and quality chargers and low voltage disconnect. These prismatic cells are pretty stable workhorses. 13.68v max charge for the bank and 12v battery disconnect on the inverter. 11.8 on the battery disconnect. That leaves almost all the capacity meat on the bone while steering clear of a voltage cliffs on either side. No top balancing BMS complexity. Simple system that works.

Thanks! Really inexpensive price, it is recommended for the first cell formation charge to use a maximum current of 0.5C and carry them only once at 4 volts per cell (read the manual of each individual brand because it is dangerous to make a mistake) then subsequently they can be downloaded and quietly charged at 3.5V per cell, 14V @ 12V battery and do not drop below 3Volt per cell 12 @ 12volt battery, so they last an eternity!

I bought a LiFePO4 Battery 100ah from aliexpress for 500 dollar and used your settings for the mt50 and it works great.

These are reasonably priced. Good find! Cheap entry, easy to scale up.

Rely sharp Will your parents must be proud with such a sharp kid keep the video's coming.

Need to correct a previous post which I deleted. These Sinopoly do appear to be their premium cells. Many vendors sell "seconds" as premium cells. Good to see that there's finally an Amazon vendor selling a good brand. The prices are fair especially comparing AliExpress costs after shipping. Now if only they would market CALB.............BTW, Excellect presentation.

Better way to tape together is lay them on side and use table to align edges. Better yet, stack the batteries in an inside corner - the two battery edges align automatically to the corner faces.

Great videos. Thanks for your videos explaining LiFePO4 batteries for newbs.

Hi Will.. can you compare these to battle born type batteries. Are these a good way to save money? Thanks

always full charge every cell individualy before the first use.... a good usage is to test them afterwards with a constant current source....

You can now get pre-assembled 12V LiFePO4 batteries with the balance charging circuit built-in to the package, for a bit more than the cost of these battery kits. They're around AU$999 retail for the 100Ah version. You pay the extra because they've done all the hard work of assembling it and adding the balance charging circuit and nicely packaging it all.

I really appreciate your videos. Ever think of building batteries for us dummies? I know shipping would stink yet I trust you and think you could make a little jingle and really help us DIY selfers out.

1. How about testing multiple small cells versus same AH value large cells for resistance 2. Second test, the resistance for wiring 8 in series then parallel or paralleling 2 x 4

If you calculate the costs per KWh they are around 500 $ per KWh. I don't know what they cost in EU, but here you can buy a BYD battery box (a box with batteries, BMS included and ready to connect to the solar inverter) for around 500 € per KWh, VAT included. In my opinion a great product, also with Lifepo 4 cells.

Great videos, really appreciate you taking the time exploring DIY LiFePO4 batteries.

Great video thanks Will! I'm just hoping that they didn't cherry pick the cream of the crop to send you this sample. Otherwise it's not an accurate representation of what the average consumer will be buying from them.

Ahhhhh...every time I think I understand on a whole I watch and old video and I notice something I missed ......you really have this Chicago old lady on her toes!!!...I'll see myself out dang it....

At some point it would be great if you could do a vid with a battery bank on a yacht - what I am dealing with now

Nice video will keep up the good work. Got my teardrop caravan wired up with 230v off grid electrics for under £200 thanks to your posts. Just need upgrade my 100w panel to a 310w panel as I'm not managing to maintain power. I found a panel that measures just 1.5 meters by 0.8m that fits perfect on the flat roof design. I'm using one lead acid battery due to budget with a 110ah rating. Get about a day and a half of power running a 22 litre 230v fridge. So it's nearly perfect for weekend getaways. I've seen 6a from a 100w solar panel which I found amazing. Also had to return a cheap inverter. Said pure sine wave on it but it used the power quick and always sounding its alarming after 5 mins use but providing power. Looked like the grid tie inverter you put a conversation up about concerning safety aspects. P.s. I can recycle those po4 batteries I'd you want to make some room 😎😂

my Calb cells output is 120 AH and cost $650 including shipping - from Electric Car Parts

you should test 2 6v batteries since its a common rv upgrade

What are the advantages of putting smaller batteries together instead of using a larger one?

For your discharge you should use a boost converter and put that energy into your tesla battery or whatever you are using instead of turning that energy into unwanted heat

Huh, pretty good find. Not a bad price for matched LiFePO4 cells, if they perform as advertised over time.

Keepum coming Will and "Thanks".

💜💜💜 Good job Will! I look forward to the monster system!

lovely batteries you have. I have an idea to balance the batteries continuously, I want you to know the idea I came up with for some time. Take a 5Kohm resistor on each battery (in parallel + and -) in series, thus the voltage is the same for all batteries. maybe a zener diode in series with the resistance so that the voltage does not come below 3V, if it works in the real world I do not know

I find your content fascinating. Been using 6v golf carts in my trailer for years. Was going to increase my bank from 4 x 6v to 6 x 6v. I added a household fridge that runs my batteries down faster than i like. It is time to replace the golf cart batteries so thinking about using something like these or Battle Born.

went the link you posted directed it to canada its about CDN$ 3,150.00 + CDN$ 5.54 shipping

Thanks for the review. I was looking at them on Amazon last week, your review helps!

I really like your reviews. Have you ever tested the Amazon offering $590.00 + $109.23 shipping 12V 100Ah lithium iron LiFePO4 Battery For EV, Car Audio System, Solar system, Electric boat, RV, Camping, Light Weight Small size (Compare with lead acid battery) Contain 4S 3.2V 100Amps Batteries

Great information and I bought your book prior to finding you on RU-vid. But I'm thinking . . . they sent you the battery for testing. If I was sending you my product hoping to get good press, would I not make sure the components I am sending are top notch and will test out in a positive fashion. Makes me wonder if they sent you "hand picked" cells. Would you have gotten the same quality if you were just a ramdom purchase . . . ? Next time some organization wishes to enlist your service, perhaps make an agreement you will source their product on the open market and be reimbersed thereafterwards. It would add much need credibility to product reviews. Thanks!

Can you go over some of your equipment, balancer, watt meters and can talk about a few different 120v chargers?

Man I love your voice😄. good job

Thanks for the information that’s a great job on that!

Do you have any videos on how to wire the inverter in to the panel of the rv system? Great videos!

Another among many great presentations, Will -- thanks! Maybe you can shed some light on an apparent anomaly from this source: the 200ah kit w/o BMS is $1200 and the 215ah kit w/o BMS is $160 less! The Q & A includes a question about this but the reply from seller is not altogether satisfying: "a lot of people search on 200ah, so we list that, but they are the same thing . . . (then why a lower price for higher capacity?)

Great video Will. Can you show us a build that a kayaker can use? We use batteries for fish finders, lights and trolling motors.

I know price has dropped and the benefits is increasing; but, the buy-in cost is not insignificant 😭😭😭😭😭😭😭. One day, I’ll have a PV array, solar heat capture, battery storage and heat exchange recovery system in some future home.

Look like a kid opening your Christmas gifts 😁🎅 great vid will 😍👍👍❤

Great videos. I'm trying to build a battery backup to run two house refrigerators and several small fans for overnight comfort during power outages. What do you recommend?

Please advise on these? WEIZE 12V 100Ah LiFePO4 Lithium Battery with Self-Heating Function, Up to 8000 Cycles, Built-in Smart BMS, $269 each

I'm trying to find the video that shows how to build a solar generator in a toolbox that bought made of plastic. We're you build it from the individual 3 volt batteries and made the cells your self

u r my favorite utuber

please show me how you make your videos.....they are professional , I have a project with the Scouts and Seniors coming up, and videos would just do the trick ! Thank you for all your out standing videos and generosity to share with others .............cheers !

Have you ever heard the term “ drinking from the fire hose?” That is what this is.

Hi Will I have watched several of your vids and have found them all to be very well done and useful. You are the first and ,so far, only channel that I have subscribed to. I live in Ontario and am in a solar house with a 7320 watt solar array. I have a li ion battery with only 106 amp hours. 5kw @48v. I want to build a 48 v 400 amp hour battery bank to hook up to my outback equipment 2 main terminals. Which vids should I watch and or would you be able to do a vid or contact me to share the needed info. Keep up the great work and I will keep watching.

I'm goinh to be watching more of your videos to take advantage of your knowledge because I'm basically a beginner and need to learn as much as i can. Sure wish you were my buddy and could learn face to face...lol 👍

So what’s your opinion on using golf cart batteries for solar? Price is a factor for me and I’m trying to decide between AGM or golf cart deep cycle batteries. Thanks in advance

Only you would find this fun. Lol. You are awesome Will.

How would you compare these to battle born batteries? I’d love to set up a 600+ au system, but am worried about durability of these. Would you recommend them for that?

Will, following your videos and you are the authority as far as I am concerned. I’m an older guy who is a kayak fisherman looking for 100ah for runing a 30lb thrust electric trolling motor (battery weight vs ah is the key). Almost ordered a Battle Born, but just can’t swallow the cost. This looks like a good alternative, just looking to see if you have a sweet spot recommendation for my scenario. Keep the content coming!

Fine I'll order your damn book... Lol

Break it down for us slow pokes...yeah..thank you bud

,Awesome information, William! Thanks for this and a new source for lifepo4!

What about using a Group 31 deep cycle for a budget build

Good price. Could you get some hold on FREY 100Ah (36130288-100AH) or DELONGTOP 60Ah (DEL-3260, DL-3.2V60AH), LiFePO4 cells? They look very well priced.

Ok I really needed to learn more about solar power systems so I will be watching more of this mans videos. Also he has really beautiful eyes, just saying.

would the 100ah kit be good to power a older rv where the biggest draw would be the ac unit. I bought about 8 260 watt solar panels I plan on being able to charge them with.

I need a 200 AH 12,8V battery. Which is better? A single 200AH battery pack or 2x100AH packs connected in parallel, each of them with separate BMS? Thanks!

What about jawing a group 31 deep cycle battery for a budget system

Any idea were we can purchase these from Australian agent as Amzn USA dont deliver to Aust

Thanks Will. I'm seeing lifepo4 power battery 12v 100Ah waterproof cases showing up online with all kinds of outports, now. Do you have any thoughts on these cases? Is the inverter and Charge controller built in? I see they have BMS. You could make these little cases easily. They look quite handy but I don't know how well they are built.

Very good info. Well presented.

I’m wanting to start over landing slash going nomadic. To save money and avoid becoming homeless. Is there it cheaper to build a solar system or buy a solar generator. Just need to run a refrigerator and maybe a fan or electric blanket when it’s cold. What do you recommend. And can you also charge it off the car battery while driving?

I am new to these types of batteries. I am looking for a battery that can run a 120w DC aquarium pump for a few hours by itself or with a solar charger set up added. What would I need?

Hello, You know there are LiFePO4 32650 cylindrical cells 5000-6000 mah. They are cheap and I am kinda interested in them but don't know how they will perfom. I couldn't find a video of yours that mentioned those cells so I am curious. Would you do a video on those cells?

Hi Will, I live in Scotland and would love to buy " LiFePO4 12V 200Ah Lithium Iron Phosphate Battery Pack, Light Weight LiFePO4 Battery for RV, Solar, Marine, and Off-Grid Applications " For my 32 foot cruiser. But the Amazon site says it will not ship to the UK and they are not avalable on Amazon UK. Any help in sourcing These cells from someone who can ship to the uk would be a great help. Eddie Kessler

Will, Is there a reason why someone would buy 2 X 100Ah versus 1 X 200Ah?

Hi , How many batteries / cells would you need to build an alternative to a Tesla power wall 2 ? 13500 wh

Hi Will. Fantastic channel with lots of useful information. I'm remodelling an old campervan and wondering what the best set up in terms of batteries I should use? I'm hoping to use 12v, 240 and solar as I'm looking to be off-grid camping a lot and want to have enough power to keep going. Would I be best getting a ready made.lithium or make my own up? Any guidance would be greatly appreciated. Many thanks :)

Which battery is best in car conversion in your opinion??

I was looking on amazon UK for this kit and the cheapest I could find was about £340. Then I went straight to the Ruixubattery website and it was £148. That's crazy.

Thanks so much for all your videos! You’re awesome! I have a 5kw lg resu battery that I really really want to use off grid. Do you know anyway at all that I could make that happen. I guess the battery is designed for grid tied use but it’s a battery right? There’s got to be a way I could use it?

Hi will i just by 8 cel 12v 200ah to make a 12v 400ah , wich bms do you suggest we will pull 70 ah max and i want to charge them fast with a dc dc charger .

How do you connect prismatic cells that don’t have threaded holes?

Please be more careful around unprotected battery terminals. Shorting them can be serious.

Do you recommend these over battleborn or used Tesla batteries? I know battleborn is top notch, but seems like significant price difference.

*_Thanks_*

good video, how long did the 150w heat gun run for .

Hi what bms would you recommend for a LiFePo4 3.2V 320Ah 4Pcs Deep Cycle Solar Battery Pack

Would love to see more videos from your channel bro :)

I'm one those people who does not buy anything off Amazon. I like that 1500W inverter you show a lot but it is only available on Amazon. The same brand is available in the 2,000W version on Ebay but do you know of anywhere else to get the 1500W model?

You do some great videos and you always sound so existed. You often mention about batteries being balanced, can't we just get good batteries that don't need balancing?

That 40AH per cell = x 4 = 120 AH correct in parallel right ?

Thank you for sharing all this information.

Thanks a lot, you are a good explainer

Hey Will,The BMS is not included in the kit. I assume you used the one you recommend on your site. Maybe add this to your description too.

so for using these cells in the 12 volt configuration for a second battery in a car for audio, it would be a fluctuating power consumption , obviously ... example with a 260 AH alternator and 2 battery's 1 being these lithium cells and other stock battery with 2 amps pulling a combined amperage of about 300 at best, at about 2-5 min. bursts ...how do you think these would perform in said situation?

Damn bro! You keep on making gem videos. Just cut my build price in half!

Thanks. Any idea how many cycles they can handle, say if discharged to 20% each time? What is the weight of each cell?