Recent content by rmcrowe

just to let you know - I did get a full refund from Amazon this morning, so the seller did come through on that without me having to harass them.

I am far from an expert compared to many others on this forum. I am not in a hurry so probably purchase from Docan on alibaba, or one of the other reputable suppliers (I'm sure there are lists of them somewhere here on the forum now). Be willing to wait a long time though from China. There...

I will just build my battery - I did that for my RV and the results have been great, I wanted to build a quick little 100h powerstation that I could use for various things (or in case I need more in the RV), and though "hell, the cost of these lifepo4 batteries has come down so much I'll give...

I don't know if this will help you or not, but I did get some answers to my query on Amazon (and now I just looked and the answer is no longer there! How bizarre! I guess the seller must have retracted it ? ). My question was: "what is the low voltage discharge cutoff and what is the low...

Oh, and my discharge test got me 94ah, not the claimed 100. But I did get a bit more than 1200WH, so I guess if you go 12*100 that works out, still a bit deceptive I think.

I just bought the same battery I think - I got it from amazon - its for a power station in my case, and it's a nice-to-have not really critical for me so I thought I would get the cheapest battery I could. The marketing sounds good on these but the low voltage cutoff, as you have found is...

Oops. That was a typo... 276 to 280 is what I meant to write :-). This was in an ambient temperature of about 95f so I thought it was okay.

When building the pack I did do a capacity test on all the cells. I was getting between 176 to 180 ah from each. I did do a top balance before building the final configuration. 3.65 for each individual cell then I paralllel at 3.65 for 48 hours. Bit since the bms was back ordered I ran these...

Thanks @snoobler I was thinking the same regarding bms controlling the charge/discharge function - its really just there for safety. Im not worried about the 2ah or so top of this thing, so I'm just going to reduce my absorption on both the multiplus and the mppt to 13.9. @GXMnow thanks...

I finally got my new sbms0 and installed it. Testing now and I have a question ( 12v 280ah) Sbms0 is set for hvd at 3.5v ,. Victron default lithium profile set for 14.2v absorbtion. I have one cell that charges a bit faster than the others - I'm not worried much about this, as it only...

I have recently installed mine (12/3000) and it sure seems like a quality product. I don't have a lot to compare it to but the programming seems pretty straightforward yet flexible, and the system appears well constructed. I have tested it running the AC in my unit off battery (I won't really...

I ordered a cheep capacity tester from one of the vendors on Aliexpress and have the same situation, stuck at newgistics in Los Angeles for the last 4 weeks. Departed Shipping Partner Facility, USPS Awaiting Item 2020-06-23 01:38:00 [LOS ANGELES,90040] Inducted into Newgistics Network...

Thanks, yes I plan to stay in the flat part of the discharge curve while running without BMS, and I will indeed test the cells with a few charge/discharge cycles just to double check. Appreciate the feedback.

I bought 4 from them back at the end of May, shipped to so cal was $454, which I thought was a good deal. The cells were 82 each I think. It took maybe a week longer than they quoted to arrive (got here last wed) but that was not too bad. Mine were very well packaged and tested out near...

I'm thinking about going without my bms for probably 6 weeks. In my case I plan to use an sbms0 but stock won't be in until late August. I imagine it might drag out further than that... same situation - we have some travel plans in the RV... I have just finished testing 4 280ah cells from...