Hi Team,
If my customer would like to charge the battery in the only 0~45C degree,
How to set RT1 and RT2? If they adjust R_HOT, how can find the resistor value for 45C?

Best Regards,
Austin
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Hello Austin,
You go to the thermistor datasheet and pick the thermistor value at 0 and 45C (R_COLD and R_HOT). The calculator will tell you the rest.
Regards,
Mike Emanuel