I wonder what your goal is commenting on this thread ? I found bar stock in exactly the right size to be cut into three busbars, span across four batteries for a parallel cells, or the funky distance between cells widthwise, at a cheaper price, with cheaper and faster shipping than I was able to...
Well, trigger pulled and we'll see how it all works out.
I have 16 more eve280's on the way
4 Daly 250 8s paralell BMS and
4 Daly WNT boards
I'll end up with 4 8s 280ah battery packs. I'm going to use the BMS to monitor each pack seperately and then the BVM to monitor the whole system.
Just a side note: for now I am using my Victron multiplus for charging. My rig is not in a good sunny spot while I"m working on it so the panels aren't going to be very useful.
Forgive me, I want to be sure. I do NOT want to leave the balance board connected/on while charging?
But I do want to...
Thank you. So basically you're telling me not to worry about those wires being too small either, then?
My power draw should be %50 or less capacity of the inverter most of the time (<125A @24v)
I have 280ah batteries at 24v so they will be <1c at full load
Victron 3000 multiplus which I plan on...
OMG, I have possibly a really dumb or really smart question:
Can't I just use my Icharger 308 Duo to balance charge my batteries instead of messing about with the active balancer?
It will handle 30 amps continuous for 8s and actively balances cells. If the pack is currently %80+, then it...
There is a lot there and I appreciate all of it; I won't make a long post responding to each point.
But, yeah, my extra harness is a progressive rc 22awg silicon jstxh like I use on my RC helis/lipos/etc
I have several cell checkers already, for sure.
And I'll probably use the Helltec...
What method did you use to connect your batteries in parallel?
I am reconfiguring my system for <reasons>, and will end up with x4 8s eve280 batteries with a Daly BMS and paralell communication board each, plugged into canbus on a VenusPi. I want to be able to remove one or more batteries...
LOL.... I just checked my other EVE cell's qr codes and they all seem to be clean and legit
8 came from Jenny Wu/ExlipoRC
and 8 came from *THIS SELLER* in two orders of 4 batteries each order. They seem legit/authentic. QR Codes from both companies attached
I got the 4 BMS and WNT boards today...
First post here, thank you for having me!
I'm trying to sort out the details of exactly how to hook up my camper for full off grid power.
I've read a bunch and consumed a bunch of videos and I'm still a bit confused about fine details.
I will be running a Daly 250 Smart BMS to manage an 8s...
So, in short:
if my equipment is calibrated properly then I can do a full charge, and a full discharge, and trust the reading on my BVM712 shunt to tell me the total extracted power, right? That will tell me what I'm extracting from the pack, that's the "part". How do I get the "whole" %100...
Victron Multiplus 24/3000
Eve280 2p8s array
Daly 250 Smart BMS w BT
BVM712 Shunt
This is my first attempt at building an off gird power system like this. I'm about to add 2kw of solar to it, too.
I these cells were all close to each other on delivery but i did let them sit for 2 days all in...
I'm going to leave out a lot of backstory and detail, but my open balance start voltage is set to 3.2v
So my daly balance charges after 3.2v and stops balancing when the cells have less than .005v difference? I have a bunch of screen shots, and I'm still trying to get these cells balanced and...
I am rabbit hole reading a bunch of posts on diysf
I also emailed EVE a pic and question, not sure if they will respind or be helpful.
Peeled back the black cap. Jezus that glue is hard to dissolve/clean
Smaller qr code
23218HF06441
I just dont think that was the case. The only loads were my 12v converter (35w at the time) and my absorbtion fridge <300w
At 24v that's < 20amps, mybattery is 560a, and it's 8ft of 1/0 wire.
I had my rooftop ac (1400w) and microwave (1400w) on for 2 minutes the other day as a test, no problem.
But how do I prove that to my bank?
I figured that my other cells were B grade, but they have been doing great, AND the QR code is probably original and unmolested. One *could* argue that they are "A grade" performance blah blah blah. I'm not saying it would be right, but there is a broken leg...
Oh, no, we agree.
I want to use only %80 of my pack.
But I'm not sure what %100 actually is in order to calculate what %80 is.
And I know that I have my equipment set up in such a way that I am not using %100 or even %80 total capacity.
That's what I'm trying to figure out: if I'm willing to...
I am ignorant: why would you set absorption time to 0? I followed directions from a battleborn page and it recommended .5hrs for every 100ah of capacity. that is where I got all those settings
I ran the camper ac for a couple minutes and all the cells are back down to .005v of each other. I...
Not every day, but I'm learning and refining.
I've never worked with PV before but have been learning for the last 6 months. I purchased a 27' camper 6 months ago and started working on it. I have been living in it for 9 days now, completely off grid. I have a lot left to learn! LOL!
But, i've...
I unplugged from shore power and ran the AC for a few minutes. The cells are now all down around 3.29x and all within .005v of each other. I've turned everything off until I can figure out what I need to know.
Is there any reason I wouldn't want to disassemble and top balance from the current...
TY.
Not that I'm in a rush, but I just want it done and off my mind. I think I am going to disassemble and top balance correctly. My only question is if I can/should do it from the ~%98 SOC that I am at, now?
So, I just hook this up, check my cell's balance daily ,and let it do it's thing for several weeks/months? Is there any danger/downside to using it?
(this are oversimplified questions)
I am going to look into this more, later this evening when I have time.