$799 Ecoworthy Server Rack Passed! And the EG4 Did not?!! Deep Dive Testing

[@WillProwse]

Server Rack Batteries Mentioned in the Video (affiliate links): Ecoworthy ($200 off with coupon code "20solarWILL" on amazon): amzn.to/4aE1A3q EG4: signaturesolar.com/shop-all/batteries/eg4-lifepower4/?ref=cPwLcVc0SW-BjN Vatrer: amzn.to/42xjFOM Other Server Rack Batteries I recommend: www.mobile-solarpower.com/server-rack-lifepo4.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~ *Does off-grid solar confuse you?* Check out my DIY friendly website for solar system blueprints 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 free book* Best-selling and beginner-friendly guide to 12V off-grid solar! www.mobile-solarpower.com/the-book.html *My Favorite Online Stores for DIY Solar Products:* *Current Connected* My favorite USA Distributor! EG4, SOK, Victron, Mr Cool Heatpumps and High Quality Components. Fantastic customer support: currentconnected.com/?ref=wp *WattCycle* My favorite 12V budget battery!: www.wattcycle.com/?ref=aaezwkkc *Epoch Batteries* My favorite high-quality 12V battery: www.epochbatteries.com/products/12v-460ah-lifepo4-battery-ip67-heated-bluetooth-victron-comms?rfsn=7352625.50494d *Watts247* Need international shipping for large batteries and big inverters? Check them out! watts247.com/?wpam_id=3 *Rich Solar* Budget 12V Inverters and MPPT: richsolar.com/?ref=h-cvbzfahsek *Signature Solar* One-stop shop for solar: www.signaturesolar.com/?ref=h-cvbzfahsek *Battery Hookup* Cheap used lithium cell deals: bit.ly/2mIxSqt 5% off code: diysolar *Contact Information:* I am NOT available for personal solar system consult! If you wish to contact me, this is my direct email: [e-mail] 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 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

[@zfontain1975]

Can i use eg4 6000 with these batteries?

[@WillProwse]

@@zfontain1975 You can use any 48V inverter or solar charge controller with these batteries

[@melmccann8441]

cant buy here in canada or off amazon prime canada

[@melmccann8441]

love love your chanel.

[@MyCabinLife]

​@@WillProwsewhat settings would I use on the EG4 3000 with these batteries?

[@garycrockett4477]

Thank you for explaining the "upside down" cable. I hadn't thought of that problem before. That's what a good teacher does - point out potential problems, and how to avoid them. Again, thanks.

[@Holt0216]

Just include some threaded standoffs in the box and avoid that all together

[@lambdaprog]

"I kept trying" This phrase alone makes you better than 99% of nowadays engineers.

[@VanV0rtex]

Will is hands down the best source of DIY solar. I recently made a new friend and we both "synced" over Will's videos. Both of us are on the same page and respect Will as an expert resource. Thanks Will!

[@WillProwse]

@@VanV0rtex thank you!!!

[@MMOverlandAdventures]

No Thank you Will!

[@furek789]

I'm glad you came out with this because I'm still waiting for my eco worthy batteries. I ordered before your first video and when I saw it I got a little discouraged this one makes me happier now. Thank you

[@Token_Civilian]

Great info. Such a rapidly changing tech space - glad you're on top of it.

[@WillProwse]

0:00 Ecoworthy Capacity Test and Deep Dive 3:13 Older Packs w/ Similar Results 4:36 Accuracy of my test equipment 6:02 127Ah?!! 6:23 Ecoworthy Battery Terminal Dead Short! 7:10 Ecoworthy Tear Down and Bus Bar Discussion 7:38 Ecoworthy Bluetooth App Testing 9:37 EG4 Failed the Test!?! 10:59 I need your help!

[@Laserguy2009]

Yes! Glad I bought the Ecoworthy!! No problems so far, great battery.

[@VertTuner]

Good on you for continuing to test and following up once you realized it was normal. A lot of other people might have stopped testing or not corrected themselves to save face. This is why I like your videos; they're technical, thorough, and honest.

[@kitkimbrough1145]

I trust these videos enough to buy what his overall opinion is after comparing like components together, and with His knowledge and ability to explain complex things that even my grandma could comprehend, Shows He really understands his craft!!!

[@iPeterHerr]

Two videos on one server rack battery, sweet!

[@ryanzanow8221]

Dude, the amount of research and testing you do, always amazes me! Thanks for all the great videos and information!!

[@charleshill7184]

Will is constantly asking us to go watch his older videos. Great to know he takes his own advice!

[@goodcitizen4587]

I like that both of these batteries have the dual terminals. Just a short cable links to the next battery, easily stacked by just sitting 4 or 6 of these in a stack.

[@DegenerateToo]

Thank you, Will! Glad you’re constantly testing Solar equipment even the newer models!

[@ekeretteekpo3004]

Awesome video! By the way, I have a confession to make. I usually set your videos to 1.5x speed and you somehow sound smoother. 😁 😅 Thank you for all you do.

[@worthmor]

Good job Will!

[@tacotimeracing6638]

Awesome update video! So the last 3 eco-worthy batteries came in and had zero problems with the dented front panels. That said there were 3 out of 15 with dented front panels from where the handles pushed in. I know I said the handles sucked last time, but really it comes down to they need to add just another inch of foam on the front side only. There just isn't enough padding there if they are not going to be shipped on a pallet because we know "this end up" is just not going to happen lol.

[@GavinStoneDIY]

Interesting results. I may have to isolate my EG4 lifepower V2 and test it. This is likely just the BMS throttling the capacity on the EG4. I doubt it’s the cells themselves. The build quality is top notch.

[@daves1646]

On the screw type/position on the terminals, good design ELIMINATES failure modes. Hey EcoWorthy?!?! Opportunity is knocking.

[@John-vk1ij]

Maybe we can design a 3D model to cover these exposed screws

[@tykokavaak5784]

@@John-vk1ij Might even be able to find something widely available, requiring minimal modification. Perhaps a PVC endcap with a hole drilled in it?

[@seanthenry]

@@John-vk1ij Grab some liquid electrical tape and coat the screws.

[@SpiderslidePics]

Man, you really researched the hell out of this. Good on ya!

[@quartamile]

Heck yeah. excellent report and education as always. thank you Will!

[@frankiecalvo2616]

Love your video Will, thanks for explaining to us how these batteries work and if they worth buying.

[@j1117901]

Thanks for always being as honest as possible with us

[@tednugent1351]

These are so great! Keep the videos coming.

[@Wrenchen-with-Darren]

I trust your testing, I've watched you long enough to know. That's a really good price. I hope it holds up. Thanks for your testing 👍

[@the-Bhawk7]

Very nice hey I just purchased these so I was schocked to see these videos you posted, so far they are working great. Your promo link works think i'll buy another one, thanks

[@drax50ish58]

Looking forward to your Vatrer review as I purchased 2 of them for a build I'm planning this Spring.

[@2008mjb]

You talked about a point from a previous video on how the BMS/shunt works. Maybe if you compiled all these talking points into a checklist. It would also go a long way for publishing comparison charts for all the batteries you test. Ultimately hopefully making it to the manufacturers so they may have a better idea of what skilled people are noticing.

[@v0n1b0]

Anxiously awaiting the Vatrer review.

[@WillProwse]

Haha

[@LithiumSolar]

Interesting observation on the soc cutoff, I never would have picked up on it. That makes no sense though why they would program these to cutoff based on soc. Even if the BMS is is learning the full capacity as the battery ages, I still feel that's not accurate enough control vs voltage. Unless it's being used as a form of redundancy maybe. Also, I've come to strongly dislike those rigid humpless busbars, especially if they're used in a pack that's just taped or PET-strapped together.

[@RobtTa]

SOOooooo entertaining! By far my favorite KZbin channel!

[@better.better]

obvious bot

[@RobtTa]

@@better.better better.better has a low IQ! (obviously)

[@elberttanner6189]

I always have gallons of distilled water around. One can cut an oversize washer out of the plastic gallon jug to place between the terminal mounting screws and the cable to prevent the short.

[@MyCabinLife]

Couldn't you just cover them with electrical tape? Serious question I'm still learning.

[@better.better]

​@@MyCabinLifeyou *could*, but that wouldnt be as thick of an insulator. honestly why take the risk? just put it on the correct way that provides the most separation. that much potential energy, you want to eliminate any chance of shorting or arcing. I would only resort to something like that if I didn't have the space, or I thought that there might be a risk of shorting or arcing if the terminals were put on the correct way. but you're not supposed to install them close to anything anyway, exactly for that reason.

[@russellzauner]

Tabless cell construction has shown to not only increase capacity but also drop manufacturing costs because they're simpler to make. They're in a bunch of power tools now and the micromobility/esk8 enthusiasts are building packs with the cells that are cutting weight while keeping power the same or better. Being large storage enthusiasts, I think our reward is going to be an immediate 30% increase in capacity without increasing volume or weight footprints. I hope we get to see some rack battery packs with these cells in them soon.

[@allenburns3177]

Will I would like to see you do some safety videos and possibly a video on using a digital multi meter and the safety procedures while using it. Those server rack batteries store enough energy to cause a violent explosion if shorted out. As a retired elevator tech with 40 years working with electricity . I was required to work on equipment that had more than one live circuit. Capacitor banks that stored lots of power. Supply line power of up to 480V. Have seen several times an accidental short causing molten metal to fly thru the air. That is some dangerous stuff you are doing, and many of your audience will have knowledge from professional to total lack of proper safety procedures working with stored energy.

[@noahh.9062]

Glad I went with SOK batteries from Current Connected. Getting installed soon. Cant' wait!

[@LithiumBatteryGuy]

The new EG4 is built by a different company. The same company who builds the premium EG4. The are likely protecting the cells for long life by limiting how much capacity you can use. Remember with experience comes revision. Lots of rack batteries that are only 3-5 years old are failing. Because of a weak cell usually. It is all in understanding the warranty. As you said already the BMS is limiting the cells capacity on both batteries.

[@Dragonfiregum]

I don't buy products for the warranty , i buy them to work. When dealing in spans of 5,10,15,20,25 years the companies are often gone in this world now. Knowing a product is going to last is key. If people know the product is failing in 3-5 years even within warranty , it's a big put off.

[@LithiumBatteryGuy]

@@Dragonfiregum eco worthy 10 years. Hmm 🤔

[@91CavGT5]

@@Dragonfiregum I’ve always had the opinion that a warranty is no good if you have to use it. We want reliability, not to have to rely on a warranty.

[@powernab8457]

Will Prowse that's why you are the DON! 👍

[@AutoAddictionMedia]

To have the best results, you should really charge every single cell to 3.65v before starting the capacity test. Those balancers that come with these batteries are mostly passive balancers and if one or more cells has drifted away too much, the balancers cannot correct it anymore (unless you let it balance for 5 weeks). So my advice: charge the battery to 100%, then open the lid and check each cell voltage. If some are not at 3.65, charge them manually with a dc power supply until all cells are 3.65v.

[@WillProwse]

Your videos rock man. So cool to see you here. And yes, I always do that. When I have a newly manufactured pack, I always test without balancing to see how well the cells were matched from the factory.

[@AutoAddictionMedia]

@@WillProwse Thanks! Been a follower of your channel for at least 6 years

[@DennisWintjes2]

Thanks Will. Like 3.3K+

[@valbobocea3]

Let's see what you got this time!!!

[@D-Khaz]

Would love to see you test more of the wall mount type batteries like Pytes LV1 or BigBattery Ethos. The wall mount form factor and easy expansion seems nice.

[@clarencewiles963]

Thumbs up 👍 Will you are digging in thanks for sharing your work 😎

[@ryanpsd8526]

Thank you! More on the Noco batteries, please, again! :)

[@DaMerk5]

Battery technology has come a long way but it's still so far behind where I wish it was...I would love to see the exact same size of battery banks get 3-4x the capacity, then we will get to see battery powered things really take off

[@gerharddohne2518]

Wow - this is interesting - very well done! I am wondering, and this is just a guess, if there is an underlying issue in that the suppliers of the cells possibly make them just a little bit less powerful, maybe just 0.1-0.2 ah per cell. This would add up to what you are observing.

[@N4HHE]

“5% tolerance” is something I’d accept between cells from different production runs. Or between PV panels. But no matter the accuracy of your equipment I expect the repeatability to be under 1%.

[@DavidW-w8f]

Great review!

[@stephensclavos4485]

I only have a emergency backup system, using marine high amp batteries, of course u have to b careful, one doesn’t want to “ weld “ in ur home! Lol ie correct wires and install , breakers etc , I’d just run it with a converter, and charge the batteries using panels and switch them out ,not ideal but better then candles ! Lol

[@curious-homebody]

6:57 gave me a few giggles. thanks for sharing!

[@dansplett8303]

Will thank you for your videos

[@LittleSpot]

maybe you can make es recap of the last 3 years. How was the price dropping. how was the extension with new features. and maybe you forum can help you, to get long time experience from more users of these batteries. your deep dives are awesome.👍

[@BarracudaBobster]

I have owned them since October and Will and I have been going back and forth over results. It has been a great journey. I would get them before the tariffs kick in.

[@cosyn9]

lol, I got so freaked out about the tariffs I bought 22 of them, as well as inverters and solar panels even though my cabin build will take many more months. Really appreciate all of your knowledge sharing on the forum! I have learned a ton from you, Will and others there.

[@cptjohn1143]

you need admin/root access to the bms to calibrate, then you will have the right capacity. With normal cycles it took about 250 cycles to calibrate and balance in my case.

[@tedtuesday6278]

It will be interesting to see if you have to change your battery recommendation on the EG4 solar cart & your 48v battery recommendation in general.

[@jws3925]

Will's new saying: "its not that bad."

[@staudtj1]

Will . . . . can the Ecoworthy Batteries fit into the EG4 Server Rack?

[@Mentor_Imroo]

Do the eco worthy batteries communicate with eg4 inverters like the 6000xp?

[@steveludden4015]

My question as well

[@goingagainstthegrain]

After I watched this video, I went outside to get my mail. I noticed my neighbor had a Generac installed. 👀

[@jimegan7077]

The general consensus on the forum is that the coulomb counter on a BMS isn't accurate. Certainly not as accurate as say a Victron Shunt, _especially_ at low current. This may be urban legend but it's been repeated on the forum so much that it's considered to be true. With that in mind, if the capacity test was run using a very low current, is it possible that it would bypass the coulomb counting (and limit) by the Eco-Worth BMS and that would allow you to come closer to the 110 Ah of capacity? Personally, that doesn't sound like a great use of time as it's going to take quite a while to run the test. For most buyers of a battery like this, if they installed the Eco-Worthy battery without doing any capacity test and making no attempt to balance the cells, I'm not sure they would even notice that it had less than the rated capacity. Maybe that's what Eco-Worthy is counting on? (Glad you're keeping the vendors honest Will!) Given the price, it's still a good deal.

[@WillProwse]

Hey great points and that's why I tested at 3/5/20/60 amps. Technically possibly but would take weeks to charge it slowly and it would reset the counter once you hit ovd.

[@WillProwse]

Yes exactly, long time to do that. And yes, for most it's best just to ignore it and cycle it. Then capacity test the whole system every few months.

[@WillProwse]

And thanks!! Always trying to find false advertising haha

[@junkerzn7312]

I was also thinking SEI layer formation, but hmmm... not sure I like the idea of the battery cutting off a discharge based on columb counting. That could potentially cause real problems over winter if the battery bank is not able to be charged to 100% over a few months.

[@tombarnes4163]

I wonder what tariffs will do to cheap prices in the future? Can these batteries get any cheaper?

[@artdre1881]

prices of the batteries go down for the last couple for decades. there is no reason it should stop now.

[@traveling.down.the.road56]

@@artdre1881 Tariffs are a huge reason for why the prices are going to go up in the future. With all of the growing competition from new battery manufacturers, the profit margins are bound to be small, so they can’t absorb the cost of new tariffs and keep the battery prices where they are now, so as soon as any new tariffs are added, the prices will have to be increased. I’m glad that my current approximate 19kwh is all that I need for now, and I won’t need to buy any more batteries for a long while, and hopefully by the time I need more, any tariffs will be gone.

[@Senthiuz]

Probably gonna be a 10% tariff starting tomorrow and all the cheapest stuff is completely Chinese made. So, the low end probably up by 10%, high end might not go up as much if they're assembled in US with Chinese parts.

[@artdre1881]

@traveling.down.the.road56 of course prices in the US will go up accordingly after implementing tartifs. Base prices without including tariffs go down.

[@WeeZyyy]

US Made, let me know when you want to pay BattleBorn prices. Keep the cheap Chinese Batteries with good build quality coming.

[@SimpleCarGuy]

I have the ‘old’ eg4 batteries, could I run these in parallel with my eg4s? Would be awesome to buy 2 more and have 4 of them in parallel

[@amham48]

Try a Rigol DL3021 electronic load. It has a built in battery app and is very accurate.

[@TYGod2011]

I so appreciate your videos! I assume you cannot mix and match these batteries due to the communication link. I've started with the SS and just have 1 battery but will be adding soon. "If" adding a different brand would work then that would be awesome. If not, might be a good idea to just add 2 of the EW and set the L4 aside for the future.

[@TYGod2011]

Found the answer. Nope

[@alvalonline]

I've had a capacity issue with one of my V1 LifePower 4 48V batteries (the most recently purchased about 8 months ago). It resembles the same issue you're having with the newer V2 version. I'm getting 98.4 to 98.61 Ah even after 59 cycles. It came delivered at the usual 50% SOC but never managed a 100% Ah capacity from day 1. I thought it might have been a refurb but the vendor said it was new stock.

[@PowerHouse-yp8in]

I have 9 V1 and 3 of the V2 EG4 every now and then I have to charge them up using Lead Acid mode instead of using SOC EG4 mode.

[@jasoncr8419]

Bump the charge voltage up to 56.5v that will trigger a 100% SOC.

[@chrisw9451]

I think people are confusing test equipment tolerance from a circuit tolerance test. When we put load on a circuit the voltage can't drop more than 5% and pass inspection. That doesn't mean the test equipment can be off by 5%.

[@keything8487]

thank you for this information.....but now im worried about MY eg4's.....

[@scottramos7949]

I would love to see tests of the Powmr 200ah 48v rack battery and the Powmr 5K charger/inverter.

[@EatingWild]

When is that Vatrer video coming out looking forward in seeing that one!

[@badgett83]

So, if you login to the BMS on the EG4 batteries it tells you the capacity of the battery. I updated my Gen 1 lifepower4 batteries and they are showing 96.4AH and 96.8AH of capacity. This is 2 years worth of cycling in my offgrid shop. They are hooked up to a 6000XP inverter and 7200watts of solar.

[@Dark_Daze]

Hey Will. So im extremely new to all of this. Im about to buy my first house and want to go completely off-grid for my power. I'm looking to build a 20kw system. I was wondering if you wouldn't mind either doing a video or making some sort of document on the absolute cheapest way to do it. I already have the 12.v lifepo4 batteries in mind i want to use. Id basi5need a breakdown of what i would need and how to put it all together inverter/charger, Solar panels and how many etc.. if you wouldn't mind. Id basically need it to be put in dummy speak for me lol btw. I love your content.

[@mcdjchandler]

It sounds like it was sitting in the warehouse for a long time. Balance it at 54.4v and 150mA for a few days and it should balance.

[@EndlessChicken]

Would this be a better option for the mobile cart build? Paired with eg4s 3000 watt inverter?

[@jasoncr8419]

In the old LP4 v1 you could adjust the BMS Ah firmware. Maybe EG4 can do the same with v2 and make the battery BMS allow 102 instead of 100. That would cover the 2% variance.

[@steveanimatrix3887]

I think I'd be throwing some heat shrink on those exposed bolts at the power terminals. Very bad design there. Looking forward and patiently waiting for your 12000XP video :)

[@ibezag0]

Every time I’m ready to buy……will videos pop up and I’m like when is it a good time lol

[@traveling.down.the.road56]

One thing is for certain, whenever you do buy, shortly afterwards something better and/or cheaper will come out. It’s always that way and specially true with newer technologies.

[@thijsdejonge4493]

I’m missing Pylontech here. For sure the best in server rack batteries

[@Novoworks]

So will this battery work with and talk to the EG4 3KW?

[@Vibe77Guy]

My EG4 hub tells me why my EG4 batteries shut down. It shut down at 40% SOC due to low cell voltage, on both server rack batteries. Hopefully cycling between 3.65v shut off and 90% state of charge has top balanced the cells better.

[@jimegan7077]

Lower the charge voltage and current to give the BMS more time to balance.

[@Vibe77Guy]

@jimegan7077 Charging at 57.0. Cuts off when the first cells get charged to Cell OV. It seems to balance during settling back down. Also, since I've been running the chargeverter from house 120vac with an extension cord, current is set to 10A. Instead of 60A for two rack mounts. Haven't run it down again since the 40% shutdown.

[@jasoncr8419]

Bump the HUB requested charge voltage up to 56.5v , that will calibrate the SOC.

[@blenderbenderguy]

Ouch.... I just took delivery of 6 of the EG4's. I hope that one is not representative.

[@WaywardOffGrid]

Does eco-worthy have a built in resistor?

[@harrybijl5619]

Dear Will, thank you for your videos. I have a technical question, I have the Delta 3 and the Powerstream with 2 parallel connected 415 watt solar panels. I also have an external battery LifePo4 24Volt 100 Amp with Victron 12 amp charger for extra capacity connected to the XT60I input. Now the idea to connect the cables of the solar panels with a cable distributor a Victron SmartSolar MPPT and charge with the same solar panels both the Delta 3 via the Powerstream to store the Delta 3 and the LifePo4 battery with solar. Will this work? Thank you in advance for your response.

[@alcast4774]

Has anyone tried mix and match with the EG4?

[@RPS2443]

Can anyone confirm if the Ecoworthy batteries communicate with a 6000XP inverter?

[@jamienorton2004]

Do a solar cart with the eco worthy SR batteries

[@joshm3342]

I would want thin but sturdy INSULATORS on those battery terminals. There's a LOT of energy with an inexcuseable safety defect. Needs something like a heavy plastic fender washer.

[@TenaPhillips-h4d]

good video

[@Deveak]

Would low C rates help with the potential contraction expansion issues with those busbars? The shorting out on the case issue could be fixed by replacing the screws for a few bucks. I would also cover them up with some rubber or liquid insulation. Dang good price.

[@GivePizzaChants]

Would love for you to test a Redox Flow battery.

[@antonkumpe]

You should try the basen green racks / power wall

[@vilear]

Honestly these Ah ratings do confuse. Every single battery should be rated based on kWh. That is the measurement telling the real energy storage capabilities.

[@sunshineossi]

Nice video👍 For me it's very funny how some people go to so much trouble testing around for 2 to 5 Ah capacity🧐🤔 Just take the new EVE MB31 314Ah LiFePo4 cells. 16 cells deliver 16kWh and that's it. The 314Ah Eve MB31 cells and all other 300Ah cells are much cheaper per kWh capacity anyway. So who needs LiFePo4 storage with the small 100Ah cells in these days - apart from those with space problems, of course? 🤷🏼‍♂️ That's why I only use the large 16s LiFePo4 blocks with 300Ah cells in our Victron home island system with wall box, 2 split air conditioners and all the other stuff. On some days, our system uses up 20 to 40 kWh of island power per day. I don't really get very far with these small 5kWh batteries😂 For me, these cute 100Ah server rack batteries shown are just cute little toys 😅 Greetings from Germany 😎

[@JLGjTpM]

What is the storage difference between a Kepworth 12.8V - 100 Ah LifePO4 battery and that $800 Ecoworthy server rack battery? The cost difference is $150 vs $800 so is it 5-6x better or more to justify buying 1 of those or be better off getting 5 of the 100Ah batteries? Maybe do a vid explaining it please.

[@tenlittleindians]

What am I missing? I can buy 4- 100 ah 14.6 volt batteries and connect them in series to equal one of these batteries capacity wise. Those 4 batteries can be less than half the cost of 1 of these rack batteries! Unless your flush with cash or limited on space I don't understand why people buy these.🤷‍♂️

[@JohnEricNO]

Where are the sodium chemistry batteries we all heard would be widely available now? Especially 48v 100Ah models?

[@donnellschweitzer8258]

I am looking to put together a solar power system, but I would like to find out if all of the components have to come from the same manufacturer, or does that not matter??

[@CodyScott]

What setup do you suggest for a 1300 square foot log cabin? 3 ceiling fans 1 min fridge 6 x 60 watt lights Water pump

[@cxsey8587]

Calculate uour usage first

[@spawn1086]

Thanks for all you do Will! What's up with these 80.00 lifepo4 batteries on ebay? Have you ever tested one?

[@dalek2547]

Ouch, might have to hold off on my next eg4 rack buy.