Recent content by JohanB

Yeah great advice :D Seems almost too simple, but very very useful. Would be pretty awesome with a little "how to check connections" tutorial. Just measuring voltage and resistance without moving and flexing the wires didn't do it for me this time. Anyway, thanks for helping me out!

?

Thank you this hint, kept me until i found one of the crimps had a shitty connection. It was a hot and miss when moving the cable, so when i measured the first time it all seemed fine. Anyways, its all fixed and I learned a lot about the system on the way.

Thanks, great thread! I somehow missed it before. And it had the answer to my initial question.

Any ideas on what can cause the incorrect cell voltage values? Any tricks I can try or just get a new BMS? If I can't fix it, does anyone see any risks with temporarily using this setup until I get a new BMS? It will hit the high voltage protect before the charge controller reaches fully...

Do you mean the harness connector to the individual cells? I did triple check that all the wires are connected to the correct pin and position on the cells. Is there anything else i can triple check and how?

Yes that's what happened, high voltage on cell 3. The multimeter at that point said all the cells were 3.53. Daly app showed the values posted above. So the BMS shows about 0.13V too high for cell 3 and about the same amount lower than actual value for cell 2. I temporarily raised the high cell...

Well that was a short lived joy. Now the BMS got activated but it shows the wrong voltage on two of the cells. And got into shutting off from faulty high voltage protection. Cell 2 shows 3.65 and cell 3 3.40 and they are both 3.53 when measured. Any ideas on what to do? Balance leads are...

The two pin connector on the back. b- to p- did not work.

Problem solved! Found the correct pins Ans shorting them worked.

Been trying to get my BMS activated for hours now without success. I really hope someone here can help me out! I have a 4s 250A common port Daly smart bms that has been working great for two years in my camper van. Whenever it shut down I could reactivate with charging. Now I decided to...

Here are my temp parameters Awesome, works fine! Thank you

Here are my temp parameters

Two nights ago I had a cold night with no heat and the low temp protection on the Daly smart Bms did it's job. However, now I had heat for 24 hours and the temp sensor currently shows +7C and it still doesn't charge. The low temp protection is set to +3. Any ideas?

I've got a 4s lishen 280ah bank with a daly 250a smart bms in my van. I did a proper top balance before starting using it a few weeks ago. Seems like the cells since then have drifted a bit, especially cell 1 seems to have higher capacity than the other. This leads to sometimes hitting high...