Відео

Speaking about compression, i have two 48v lifepo4 in parallel with no compression and i see no difference at all. I dont know how compression will help at all so i dont follow that trend. Its been a month since your last upload, where you been sir

Very informative video. Thank you

You do great work Ray. What can you run on this system and how many solar panels would it require to run a refrigerator?

I ordered from Jenny about a week ago.. waiting on notice of shipment.

High as a kite man.

just bought my first 16 cells from Jennywu today easy transaction the cells i got are in US warehouse so should be here in7-10 days guess i need to get to building a box Thanks Ray I did give her your info so you should see a commission. This is my way of thanking you for the work you put into making the videos for us to learn from. keep up the good work. hope the ankle gets better I broke mine and ended up having 4 surgeries to get it fixed ended up having a fusion due to traumatic arthritis that was over ten years ago been going strong.

Phuck Elon Musk. His father made his forune off of emerald mines in apartheid era South Africa. Boycott Tesla.

You were certainly missed, Ray. Glad you are back and I just emailed Jenny Wu for a price on some cells. We will see............

Thank you, Ray!

What a nice inspiration video on doing DIY box! With all this blackouts i really need to make one. Thanks, Ray, and greetings from Ukraine!

Those cables are twice as long as the bus bars. No surprise you get nearly twice as much resistance.

What is the size and pitch of the bolts you are using to attach the bus bars to the battery? I think you will find that the clamping force is far higher than you realize and more than enough to remove the slight bend in the bars.

Can't find your discussion on logic of compression? You seem to go to great lengths to compress the cells but is this really necessary...

I bought 4 Apexium DIY battery kits with the JK Inverter BMS PB2A16S20P. The first one I built had a bad BMS right out of the Box and it looks like Jkung is not going to replace it. 34 days have gone by without a commitment to replace it. This is not good after sales support.

Cool😀

Hi Ray, I have to locate my batteries in my unheated garage and I live in Pennsylvania. Do you have any knowledge of options for installing internal heating in these cases for those few days when my internal garage temperature might dip below 32 degrees F? I'm willing to insulate the outside of the case, but I'd like to avoid having build another temperature controlled enclosure to encase 3 of these batteries, while accommodating wiring, etc. I understand that any heating would likely use some of the battery charge if both solar and grid were down. THANK you in advance for any guidance here! How are your horses doing??

My friend wich brand you prefer. Rept or eve cells? Thanks

HI Ray - hope you're well. It's been 11 months since you posted this video. Have you confirmed whether DOCAN implemented your advised modifications to their battery kit? It seems like 11 months should have been ample time to make these small but important mods. Thanks!

Ray! Im so happy i found your Chanel, you are such a likable person. I really enjoy learning about batteries from you! Going to build a house battery soon, so your knowledge is really helping me along. Thank you so much for your work!

New to your channel. As someone who appreciates the kind of detail you employed here, I want to congratulate you. I will be building a small system soon just for my workshop. It will not be tied to the grid but just for lights and a few tools converted to DC. (One of them a 1-ton dump truck hydraulic system converted to run my tubing bender! Thank you very much for sharing your expertise and foresight with us. Happily, subbed.

Good morning Ray Although I have been following your videos for a while, I had not seen this one and it certainly mentions one of the big problems, which is "who do you buy from?" Thank you for your teachings, greetings from Spain

They send their a batch of grade A cells to reviewers and then sell grade B to the masses

Man i miss your videos. Why take this long to upload

Hi Ray, it's great to see you back, sorry about your leg issues. I would love to see your Horse-box etc.

There has to be a black LIST for these kind of people. In my case the company was Taico power co. and the seller was Nora. Like you said the cells failed to give the given capacities and they were used type pouch cells. People should be aware that no form of payment is safe with these crooks. My story: ua-cam.com/video/rcyTgt0cNtI/v-deo.htmlsi=9Oca3gsOeUuCkzjG

The spacers need to at least be plastic. That paper is probably ruining it.

If I ever need to buy batteries I will contact Jenny Wu on your web site.

Hi Ray, Jenny confirmed that the MB30 is out of stock and production won't resume until October. I was going to go for that model in order to stay as close as possible to the first battery's capacity which is 304Ah. I'm not so sure about the MB31, I'm wondering if they are trying to push it more than it can stand. before I order I would like your view on this since you've had them on the test bench and also about having different capacity batteries in parallel. Thanks again for all your precious info🙏

Dude it sounds self inflicted. You stated, the one everyone praised although a little higher, you ignored, thinking you were saving 20pct from a company that had bad reviews, you are buying from China, remember the lead in children's paint, dog food that made our dogs sick some died, pharmaceuticals that do not have the ingredients they claim.

Hello from Spicewood. Great projects and very nice swimming hole. Pray you and wife are doing well since we haven’t seen any current videos. Just thinking you might rename your channel “Batteries +.” Joking of course. I’m working on solar, building batteries, solar AC (Signature Solar) and have been rainwater harvesting for 10 years. Blessings. Jim.

Thank you.

Thanks Ray that helped. Much appreciated, you take care. M

I just purchased a box and 16 cells from Jenny. This was my first battery build and if I were more careful things would have gone great. A few small issues during the build but it came together. I dealing with a broken LCD screen with Jenny now but I am confident she will get it resolved. The battery settings recommendations would be great for beginners like me because I have no clue how to top balance a battery like this or if it needs it. What should the voltage be on your first charge? What other settings should be adjusted before I connect it to my inverter charger device?

Thanks for all of the detail you are providing a great service to the battery build community!!!

Each 48v battery constructed with these cells should have around 17Kwh of capacity.

How much did your system cost to build?

great channel i discovered it over my off grid transformation that in starting so I want to put together a 9,000 amp battery from 30 lifep04 300amp cells but I dont know what system to use to mange this high of capacity of a battery because all the bmss that I've found are not capable of managing a function of the amount of the capacity thet this battery can hold i would love to get your take on that

What are you doing with the 18 batteries? I am new and I missed that part. The battery box is very nice.

Been scratching my head for 3-4 days now, I need to find batteries for 48v 55vish max e-bike that are solar charged and I need range. The issue is I got ripped off 3 times over the last year buying batteries from China and I'm on disability and can't afford anything now. I currently have an e-bike that ride 10min maybe 7km max :(. My 48v lithium packs rated at 30Ah (false rating) get 7km (6lbs), If I put a 36v bank of lead acid 12v 18Ah I get 14km before I hit the 36v cut off (30lbs). How do I get more range on a 36v lead acid 18Ah bank over a 48v 30Ah lithium pack lol it's a 48v e-bike.

I have always churched the washers out from the battery when I get them with the same thought.

I've had a pretty good relationship with Zhoulum from jakiper batteries or orient power. I looked at buying cells and building batteries but I went down the rack mount route. I have 4 100ah batteries and will be getting another 4 or 6. I just took delivery of a growatt 12kw transformer inverter and victron RS 450/100 charge controller. To start with. Upgrade from MPP pip 5648-mt

Been watching your videos for quite a while. I ordered 16 of the 304ah cells a year or so ago and haven’t had any issues. Love your videos

Hi Ray, Great to see you looking well and making videos again. I have been searching the comments. I would be grateful if you could share the model number/ or a link to the Class T fuse you use. (RGS4, RGS11, KA breaking, voltage)......looking for pointer in the right direction! Thanks.

just was looking at the Apexium new boxes It would seem that they took the small change of tapping a separate screw in just as you did

Could you put the link to jenny wu

Gosh, if someone as knowing as you could not get good quality after all your research, how could we uninformed get any satisfaction?

I bought 48 LF280K cells with the double terminals, 4 48v boxes and 4 JK Inverter BMS from Amy Wan. The cells were pristine and the double terminals are simply the best. I will never buy a single post terminal ever again. They all tested in the 300+ ah range.

Great video Ray and I must ask why so many batteries?.

I've been purchasing from Jenny since I first saw your videos. The new EVE series is great. I've been ordering recently and the experience has been as good as ever. They also supply DIY Seplos boxes like you said for great prices. Saves a lot of time building batteries. Thanks for a great video! You're still one of the kindest people I've ever had the honour to watch on YT!

Great video. Why do you think this assembly won't be able to dry? Fiber faced polyiso is very low perm, likely less than 1 at that thickness, but by using an air barrier, not a vapor barrier on the roof deck and under the standing seam roof, don't you think the assembly would be safer for light moisture intrusion than using peel and stick vapor barrier membranes? People say you can't dry through the metal roof, but I doubt snap lock metal roofs are air/vapor barriers at the crimps and should allow light wetting to evaporate out. So although the drying potential is low, it's better than zero by using class 1 vapor barriers under the roof and above the roof deck