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Temp outside was 107*, inside the shed was less than 120*, so I can not see that being the problem. I had two days prior added "Heltec Whole Group Balancer " to the mix, but can not imagine that overriding the BMS to allow runaway voltage. The BMS, from aliexpress, was only one week new...

I did not perform a capacity test, but I did a top balance to 3.6V prior to service last month and let them sit for 3 days (just the days I had available, not by design. As I had not yet received my bluetooth dongle they were solar charged, with a Renogy wanderer which I have been using for appx...

The balancer was new, but of such limited current I can not imagine how it could contribute. My PV is certainly of enough voltage (up to 19v) to blow a cell without the charge controller, but one bank is still fine while one erupted -hence my presumption of the BMS or Cell being the fault. I...

FYI, in case someone needs this information in the future mikefitz suggestion was perfect: I changed the temp setting to-35* and the BMS is happy across a 4 hour test.

Yes, it was certainly charging at some point during the failure although I had not been to the shed for a couple (very hot) days. And yes, it was through the BMS which I had only installed less than one week earlier. "The other 3 cells are not really useful but if not swollen too bad are...

I broke the temp1 monitor from my JBD 120A BMS -this looks like an absolute beast (small/tight/close to device) to solder back on. Is there any way to disconnect the temp monitoring thru bluetooth, as it currently shuts the system down with overtemp warning. I hate to throw away $120 for a...

For some reason changing those settings wouldn't stick, but changing the value did. My app is the XiaoXiang rather than overkill version, so perhaps that...

I just received a message from DALY stating that it was acceptable to use the BMS I have, which ranges from 2.5v 50 3.7v, nominal 3.2v, on any LiFePO4 battery system. I am dubious, and do not want to attach it to my Lishen cells without input from this community. Please advise -I do not see how...

I have some skill, but fingers and equipment far too large for that job :) I had not thought to try setting value higher, thank you.