I am playing with Daly 150A, 48V Smart BMS. Something that bothers me a lot is that the mobile app allows change protection parameters so you can set different values of protection parameters - if you want, you can set 5V for LiFePo4 battery as "cell volt high protect". I won't test whether BMS applies such dummy value charging but something I see being a serious problem with this BMS and its bluetooth solution is lack of any security that could assure me no one else will change battery's parameters to test the 5V cut off for me. You connect bluetooth module to BMS, then get the app for the BMS, chose visible via bluetooth BMS and you're ready to go with the default protection password - 123456. As there's no functionality to change password, set any passwords, I cannot see any way to secure this without development of some sophisticated electronics so in theory - anyone close to your battery/BMS can change the settings with few taps on their phone and possibly destroy quite costly piece of equipment. With security in mind, the bluetooth is not usable to keep constantly connected for monitoring without a risk - especially when you live in a densely populated areas.
If you managed know something about it or know there are some hidden settings to secure the bluetooth connection, please let me know.
If you managed know something about it or know there are some hidden settings to secure the bluetooth connection, please let me know.
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