Daly BMS with temperature protection

[Woggs1]

13.0US $ |3.2V 12V 4S 10A LiFepo4 battery 18650 charger bms PCB BMS Protection Board with Balance 12.8V Lipo Cell temperature sensor bms|Battery Accessories| - AliExpress

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I messaged the seller to see if this will cut off the power/charging when the temperature gets below freezing. From the listing it appears that is what it does, but I am not 100%. I will post what they say here.

 

[DThames]

Here is a similar product (they all look about the same) with a better description of the sensor's role. This one looks like a high temp cutoff.

 

[Steve_S]

 

[Woggs1]

YouTube Video

Thanks Steve, looks like Will is WAY ahead of me on this (as usual). So I guess I will wait until he tests the one the DailyBMS company claimed had low temp protection. The interesting thing about the listing I linked to is that this particular BMS seems to have a sensor that their other listings do not have:



also, I got the following reply:



I'm probably going with a DIY Lifepo4 battery pack and a 2424lv all-in-one controller in my RV, so if I ever go to a place that gets below freezing I need a BMS with low temp cutoff.

 

[Stupid Monkey]

Would seem its only the 10A Daly thats available with "Lipo Cell temperature sensor bms"

 

[Woggs1]

Would seem its only the 10A Daly thats available with "Lipo Cell temperature sensor bms"

True, I would have to use a relay to make it work I suppose.

 

[Will Prowse]

Just tested the latest daly bms with temp sensor that states on data sheet that it has low temp cut off, and it does not work. Maybe it is defective, but I tried to trigger it all night. Really disappointed. The bms arrived today and I was so excited. Low temp cut off did not work and I verified with other temp meter.

 

[Will Prowse]

I am working on a very long video covering the bms tests, but I summarized what you need to know here:

Finally found a LiFePO4 BMS with Low-temp Charging Protection

Spent the last few days and tonight testing BMS: 1. The "new" daly LiFePO4 BMS (that states in the data sheet that it has low temp charging protection) does not have low temp charging protection. And yes, it has a temp sensor attached. This disappointed me big time. Video to come. 2. Next, I...

diysolarforum.com

 

[Stupid Monkey]

I am working on a very long video covering the bms tests, but I summarized what you need to know here:

Finally found a LiFePO4 BMS with Low-temp Charging Protection

Spent the last few days and tonight testing BMS: 1. The "new" daly LiFePO4 BMS (that states in the data sheet that it has low temp charging protection) does not have low temp charging protection. And yes, it has a temp sensor attached. This disappointed me big time. Video to come. 2. Next, I...

diysolarforum.com

just after i order a Daly 200A separate port too, although I think I need 200A one more than i need low temp cutoff in my off grid van for UK use, and that one you suggest is only 100A. I have seen your workaround with a 220A Victron battery disconnect, and that's a piece of tech I already have, and was planning to feed the inverter through to save heat in the BMS.