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SmartLithium Battery Temperature Sensor - believable?


I have 2x SmartLithium 12V/150Ah batteries, as a series 24V pair, located right next to each other.

Battery A claims its temperature is 8°C, with a 2°C offset (i.e. with no offset, 6°C)

Battery B claims its temperature is 6°C , with a 1°C offset (i.e. with no offset, 5°C )

The BMV temperature sensor connected to Battery A positive terminal reads 7°C.

Dedpending on who is correct, these temperatures are close to the "do not charge" threshold of 5°C.

Which should I believe?

Lithium BatteryTemperature Sensortemperature
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