Recent content by njpomeroy

I would seriously like an answer to this, too. What I wouldn't give for some sort of automated box attached to the positive terminal that has a temp probe and disconnects the battery at low temp. If I knew how to build a self contained, high amp-capacity relay with automatic temperature control...

NO LONGER FOR SALE

NO LONGER FOR SALE

Well, when I posted this thread in June they were sitting right next to me in my office, but I didn't think I'd need to take beauty shots of them at the time. With no activity on the thread I did what might be called "put them away", and then it snowed heavily. sheesh

From what I understand: the BMS is the crappy one, and has no low-temp cutoff. So they are great cells+iffy BMS. People that aren't taxing the system by pulling high discharge, or operating in sub-freezing temps should be able to use them without even fixing the BMS. MY project will be pulling...

I think this is totally fascinating. People talking about my for sale post! awesome. I started a new thread because I can't seem to edit or delete my original thread in any way. Show me how to do that and I will kill the old thread entirely and leave the new thread. Pictures? Well, no I...

In Jun of 2020, I originally posted two new, never-used Ruixu 12v 100ah LiFePO4 batteries I bought 12 months ago as a project, and since they didn't sell, now the price has come down to $480 TOGETHER, as a set, NOT sold separately. 200AH for $480. I'm asking $480 FOR BOTH plus actual shipping...

Sorry I didn't get back to you sooner. The Valence XPs sold fast, but my others for sale (Ruixu 100ah) are still available.

Yes, I saw that post with the low-cost cells, too (remember to multiply by 4 for to get a 12v battery). That cost didn't include the $200-300 shipping and duties to the US either (as listed in that same posting), or the $100 BMS to make the cells function as a battery. Or reports in that same...

Cool. What retail LiFePO4 12v drop in replacement batteries cost $85/KWh? Names, brand, availability, etc. Please share your retail, complete, consumer product source. What does a discharge profile and cycle count have to do with anything? Why are you citing prices from THE FUTURE (2023) as...

KWh = (V * Ah / 1000), so... $Price / ( V * Ah / 1000 ) = If you're pricing by "nominal voltage" V is 12. So, 500/(12*100/1000) = $416.67 If you're pricing by actual voltage, V is 13.5 . So 500/(13.5*100/1000) = $370.37

Hi, all! I've decided to sell two new, never used Ruixu 12v 100ah LiFePO4 batteries I bought 6 months ago as a project (and haven't gotten around to). I'm asking $500 each plus actual shipping costs (in whatever way you want to pay for shipping). Right now they are in Utah (zip 84604), so...

[Batteries Have been Sold] Hi, all! I've decided that the 2 U27-12XPs I bought 6 months ago as a project (and haven't gotten around to) are not for me, so I'm selling them. I'm asking $350 each plus actual shipping costs (in whatever way you want to pay for shipping). Right now they are in...