BQ34Z100-G1: Can't get charge-completion on 12 cell LiFEP04 Pack

richard mcdougall

Prodigy 185 points

Part Number: BQ34Z100-G1

Hi,

I'm having trouble getting reliable charge completion on a 12 cell LiFEP04 pack.

Packs are 38.4v 38AH, Design is set to 10x.

I have the charge completion set to 3600mv and the rest of the charge params default.

Following is the voltage/charge curves for the charge termination.

Any idea why charge termination might not occur?

Richard

over 7 years ago

0 richard mcdougall over 7 years ago

Prodigy 185 points

5824.burberboard.gg.zip

0 Onyx Ahiakwo over 7 years ago in reply to richard mcdougall

TI__Guru* 76230 points

Hi Richard,
We will get back to you by Monday.

Thanks
Onyx

0 Onyx Ahiakwo over 7 years ago in reply to Onyx Ahiakwo

TI__Guru* 76230 points

Hi Richard,
Change your FC set to -1 and ensure that you are meeting the charge termination conditions. Make sure your charge current goes below the taper current programmed in the gauge. This will ensure that FC flag gets set.
Also, for further debugging in the future, make sure you have include a log file for analysis.

thanks
Onyx

0 richard mcdougall over 7 years ago in reply to Onyx Ahiakwo

Prodigy 185 points

thanks -- will try this and report back.

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BQ34Z100-G1: Can't get charge-completion on 12 cell LiFEP04 Pack