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I am having a similar issue on a daly 500a 8s and a clone 8s 250a. Both just decided to stop sending data about their status and allowing access into parameters but the mosfet indicators show up. I downloaded the old 2.0 apk(correction edit) and got it to show this but its not updating and the...

Has been roughly a year with the Eccotemp. Havent even gone through a 20lb tank yet. My only real gripe is that it does not seem to care if hot water is coming in so I have to manually turn it on and off as needed. I thought a unit with digital controls and a screen would be smarter.

Is heating an issue or are we just dreaming about air conditioning in this post? I just retired two Midea U (8K + 12K) in my tiny house in favor of a lesser efficiency mini-split heat pump. A worthy sacrifice as I had plenty of power in the summer, but was left to chopping wood all winter for...

Do this across all the cell groups. Connect all your - together, then all your 1+\-2 bars together, then all the 2+\3-... all the way up to all the positive terminals. Be super careful... or your ring lug will turn into a spade. Edit: i had occasional connection issues, lock washers are suggested.

I am actually retiring a set of 5. I used one dalygreen BMS and paralleled 5 packs with it. #6 x 1/2 self tapping screw can conveniently attach a ring lug to the fuse strips. The more cells you parallel the better your balance will be, at least in my experience.

I have already ordered from Midwest Steel Supply, but got an email about a 14 day backlog. They are cutting everything to the length I need before sending. McMaster was going to cost about 30% more and I would've been cutting them myself.

I got fuses in today, still waiting for bus bars

Btw didnt realize I was responding to you Will, big fan great vids... Im at 14c/watt including the 250A BMS

Here is the link to the ones I purchased Grade A+ lithium iron phosphate battery cells 3.2V 310ah lifepo4 battery for Electric Power Systems https://m.alibaba.com/product/1600215997258/Grade-A-lithium-iron-phosphate-battery.html Edit: It looks like they have changed to 310ah where I ordered...

I am looking for bus bars so yes there is some plumbing strap used here for now. Ive run my maximum current through it as it is now and checked for temp rise, barely noticeable. Never intended it to be permanent I just ran out of bus bars while my power was down. There are actually 3 pieces...

Thank you! Has been an ongoing project. As for the rest of the crew, 250A SouthROL BMS (Daly clone) 2x Epever 8420AN MPPT controllers - 2kw and 2.5kw arrays @250w-2s4p and 2s5p 3500w/7k surge Edecoa inverter

Reorganizing upstairs in my 400sq ft barn-house. Planning to loft my bed and have a closet underneath, so have been rearranging everything. Also just got my newest cells, 302ah grade "A" (but really B at best) built into a pack (8s4p). Very happy with the outcome! Still have to wire the tired...

Looking for some copper flat stock to use for bus bars. Can go up to 3" wide, up to 1/4 thick (atleast 1/8) , need 6 pieces 21" length and 2 12". Can cut and drill etc just need that much to do the job. Also need a plate, at least 1/8 upto 1/4, 4" x 10". Does not have to be new and IDC what...

I tried one out, and was not pleased with it. The good: it will program all your controllers in one shot via usb The bad: the mt-50 display becomes useless Mine had a strange error once and reset one of my controllers to a weird ID I didnt ask for... but by inquiring the channel via direct usb...

Just wanted to add to Hedges awesome answer. Can also buy 24v elements, I ordered 2 900w 24v elements off Aliexpress and they work fine. You cant use the internal thermostat directly going this route, will need a contactor and thermostat seperately but it does unload the inverter. I found my...

Lowes is running a really hot sale on eccotemp so Im going to get the i12, hook it to a 20lb bottle and hope when the new cells are hooked in that I only need it to turn on a few times a year. Edit: just remembered I got a family member that works for rheem I need to see what the family price is

Working on my first pack myself rn, ordered 52 cells from China direct, a 250A BMS, and some lug connectors. I took 8 of them for immediate capacity gratification and the other 44 are at a grid connected friend's house getting a cycle test to verify I didnt get ripped off. So far so good.

I came into this with little know how, and Im pretty floored by how well the whole system does without any help and esp for the small amount I invested. I had one of the slick solar salesman come to my modest 1100sq ft Florida home before I sold it. The cost was going to be $55k (cash price) to...

All this generator talk is making me feel like Ive been stupidly stubborn and anti-generator for some reason. The big issue I have is a suitable charging setup, I have no more than 25A of any regulated (and totally inefficient) AC source for anything 90-240v. The generators at HF would put me at...

I have been heating electrically pretty well for a while... but we have these 4-5 day long storms here in the winter very often and that makes energy storage tedious as it is. I have about 30kw of lipo cells that a friend is discharge/charge testing before I install them (alibaba purchase, check...

Thank you all for the suggestions so much! For those who are using 20lb bottles, how often do you find yourself swapping it?

I was a little concerned about being off topic posting this in the tiny home subsection but completely overlooked the offgrid living advice subsection.

Howdy folks I am trying to find a decent tankless water heater for my off-grid tiny house. Has to be propane, and will only serve to back-up my custom 24v 50gal electric tank water heater when the sun doesnt come out for a few days at a time. I know Amazon and a bunch of other retailers are...

Still awaiting a reply from South LAN store about the default setting but 1mR seems the magic number. It closely matches the clamp meter. Also, saw it balance for the first time today. Maybe this BMS isnt a lemon after-all.

As stated above I purchased from South LAN store on aliexpress. Did not intentionally change the value but cannot rule out unintended, lots going on here and no empty/isolated work space. Either way, a factory default should have reset the value to default and did not. I have made repeated...

I finally figured out the current reading issue. The current sense resistor was set to 9mR, I saw most folks had it set to 0.1 and corrected it. Now reading current although its a bit off.

Testing has slowed down but I did find the QR codes under the top cover. Are these 2017 cells?

This issue is still ongoing. I continued to use this setup to get some cells charged and finished topping them off on the regulated charger until they reached 3.65v@.1A, which luckily only took about 40min to an hour per cell. I wired them back into the BMS, reset to factory defaults and plugged...

Last 4 cells showed up over the weekend!

Yes thank you for the correction I am aiming for 3P/8S for 25.6v pack. The packs are being split up over 2 places, so thats why Im going with 2 packs. I also ordered 4 spare cells to use in my 12v camper application which is less pertinent so I intended to send the remainders there. These...

mAH and could get internal resistance

It actually did, the BMS is allowing charging again as the 3.7V cells have dropped below the shutoff voltage.

Greetings, Has anyone by chance found a program that can match a pack by parameters? I have a lot of cells to choose from, for 2 3S/8P LiPo packs, and I was hoping there was a program to help me choose which 3 to parallel to get a nearest match when I series them together. Optimized matching I...

I have a cell with alligator clips that I attach to help the high cells. This set up is only temporary, the final product will be a 3P/8S pack. I am trying to test as many of these cells as I can and the BMS while I still have some dispute period left.

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