BQ34Z100-G1: Lifecycle

Cameron Perl

Part Number: BQ34Z100-G1

Hey team,

Besides StateOfHealth and CycleCount, do we have any other register / functions that can assist in determining battery lifecycle? One of the other areas of interest was charge time degradation.

Thanks,

Cam

over 2 years ago

+1 Shirish over 2 years ago

TI__Guru 57697 points

Hello Cam,

There is no other direct register. StateofHealth is the most accurate indicator of degradation.

0 Cameron Perl over 2 years ago in reply to Shirish

TI__Expert 5305 points

Hi Shirish,

Quick follow-up question - how is StateofHealth calculated? I wasn't too sure based on the datasheet... could you share an example (not sure what FCC is referring to in this case I assume not the federal communications commission:))? Also at what percentage do customers typically want to replace the battery?

Thanks,

Cam

+1 Shirish over 2 years ago in reply to Cameron Perl

TI__Guru 57697 points

FCC = Full charge capacity

SOH = Full charge capacity/Design capacity *100

FCC is tracked by the gauge. Typical replacement is at SOH below 80%

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BQ34Z100-G1: Lifecycle