Recent content by Gizmo740

So jumper bottom instead of top. Same result.

Really doesn't matter top or bottom. Key is jumper protects "flow" polarity from either direction. A polarized DC breaker is designed to extinguish arc in one direction...thus "polarized". If flow is from - to + pole it may be less efficient or totally ineffective at extinguishing arc as...

Wiring with jumper across top will facilitate extenguishing the arc in the event your assumption of highest potential or cause of fault is reversed. If used as disconnect only no problem wiring through just one side. For best protection of circuit against faults, wire in and out bottom with...

The Vevor 3000VA not watts. Mine is happy up to about 2200 watts then gets touchy. Surges ok when mini split starts but if anything else us drawing it will alarm and occasionally shut down. They can be picked up on eBay for around 219 right now. Took a gamble for small mobile camping unit as...

Probably already tried this but throw it out...clean usb contacts on data cable from tester and check continuity from end to end. Also may want to try another input port to computer. Memory serves mine was flakey on one of my laptop ports. Switched ports and been rock solid for weeks now.

? dyslexia kicked...been few late nights! 3.58 to 3.15. Corrected post. I may adjust limits with more testing but finding mV matter with this chemistry. 3.65 to 2.5 being accepted hard limits to prevent damage. Seems to be more than expected (based on published curve data) no load V drop...

Great you are up and running again! Firmware fail may have been issue and fixed when reloaded software. I've been leary of fw upgrades on most non-mainstream purchases from China. If it works ok when I get it...don't upgrade/fix it. Seen lots of magic smoke over the years. Sometimes "good"...

Correct. Simply a display of system voltage. I'm betting loose connection somewhere and/or out of balance cells. Issue 1: pack not sealed in vacuum so moisture present in air in case. Low ambient Temps and swings in Temps coupled with heat generated by bms and other electronics in case...

Cell 4 tested to 311.8 AH after full charge, rest, discharge, rest, partial charge to 3.3V tail 2A. After 10 hour rest Cell 4 was again discharged to 2.5V (72.02 AH removed), rest, then charged to 3.65V tail 15A. Tester registered 312.7 AH into Cell. .9AH more than discharge test. Cell 1...

Good way to test type T fuses...periodically dead short your pack for its health and longevity...and proof of design safety?!? ? Now I sound like a politician!

What version of software are you running? Current version is V1.8.5 and can be downloaded from forum...search file section beginner corner. Also check settings in control panel for power saving options (Microjunk software). The only thing allowed to sleep should be your display. Depending on...

Interesting that it is almost reverse of LA. Don't desulfators for LA pulse charge current in attempt to shed deposits from plates and re-emulsify them? Almost fell for that marketing until I automated equalization monthly. Would imagine it would have to be at least 1C and a burst, second or...

Would guess temperature and bms settings for both issues. Spec sheets on 206ah SOK show nominal V at 12.8 reading that at 20-25F is actually good. You warmed battery in garage ~30 degrees so voltage would naturally increase. Even though ambient temp was in 30's would not be surprised if camper...

Voltage applied to a circuit will equalize based on current and potential. I have to believe your battery has more potential and will "drag" the voltage of the charge source down to battery level until current of charge source causes battery to saturate thus raising voltage of entire system...

Spent most of morning doing slump tests and compiling data. All cells appear to be within 2mV of each other in testing at 40A load and sampling voltage at 2, 4, 30, 60, 120, and 180 seconds. Overlaying plots leaves a thick smooth curve across 3 minute test. Really don't see any anomalies that...