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BQ27421G1A Design Voltage & Design Energy

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Hello,

Design Voltage

In the Battery Management Studio 1.3.40, in the Data Memory tab, class configuration->Data, there is parameter named Design Voltage, which has a default value of 3600.

In the TRM this value does not exsist, it should have been in Data->Subclass ID 48.

Do I need to change this value, I would think it should have been 3700?

Design energy/ Design Capacity

The charger charges only to 4100 mV in my system, to extend the lifetime of the battery. My battery is marked 3850mAh.

Do I then set Design Capacity to 3850 * 0,9 = 3465?

And then use the 3465 in the calulation of Design Energy ( 3465 * 3,7 = 12820)?

Best regards,

Frank Andersen


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