Recent content by SparkyTMS

Try the SEARCH feature in the forum, it's an Excellent tool... ??

Which PS did you order? I've been shopping for one...

Yup, they're B-Grade... ??‍♂️ If you do file a complaint with the seller, keep us posted on how it goes...

Which Metal Are Your LiFePO4 Cell Laser-Welded Stud Terminals Made Of?

My Understanding (from my own research, I'm no Guru by any means, just a dumb old Electrician) is that it's common/good practice to charge batteries then let them rest/stabilize for 24 hours before taking Voltage readings to assess whether or not they are good, serviceable batteries; also, 3.5V...

CATL 310Ah? How many did you order, who did you order from & what was the cost please?

Let us know how that goes for you...

Who is Amy, which company is she with?

I recommend watching the videos I linked in my post above...

Yes. Personally my Biggest Concern with these cells from China (which seem to be mostly B-Grade, reason unknown) is Excessive Self-Discharge, which clearly indicates a fault/flaw in the manufacturing process. My second biggest concern is Internal Resistance, then Capacity and finally Cell...

Sounds like it's in the tail-end of the Absorption Stage, let it finish (0A) before letting it rest. Once it hits the Float Stage, I would disconnect, check voltage, wait 1 hour, check voltage again, wait 24 hours, check voltage again. Log all readings. If voltage drops noticeably, I might be...

That's what I Meant. I was looking at the pictures of his power supply, which shows less than 3.65V in Constant Voltage Mode... ??‍♂️

I would up the Voltage to 3.65V & let it keep Absorbing until Current hits 0A. Then let it rest for 24 hours before Discharge Capacity Testing. Just my 2 cents.

Who did you order from? Those are the Fake "QR Codes", Not the OEM CATL QR Codes. I would Test those THOROUGHLY, Self-Discharge, Capacity, etc...

Not yet. Been researching in preparation for building a Ford Transit T-350HD Camper Van. The REC BMSs seem like they're The Bomb though, Extremely Flexible. It's what I'm going to order.