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Xinyuan-LilyGO / T-Display-S3-Long

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SY6970 library does not change the actual charging rate. #24

Open Grex44 opened 5 months ago

Grex44 commented 5 months ago

Hi,

I'm experiencing some issue with the charging speed rate on the SY6970. I included the library from lilygo's repository. Even after setting up PMU.setChargerConstantCurr(); to PMU.setChargerConstantCurr(3200); The tested charging rate was still at 400mA.

I've even increase the input current limit with setInputCurrentLimit() to setInputCurrentLimit(2000);

There was no change in the actual charging performance. Appreciate your assistance in it.

rhcp4life commented 5 months ago

is the charging rate fixed based on this resistor? image

Check the manual for more info: image

Grex44 commented 5 months ago

Ok thanks. Is there anyone possible to point out which resistor is R24 on the board itself since there isn't any silkscreen indicating R24

image

lewisxhe commented 5 months ago

Do you want to set the charging current to 3A? I do not recommend adjusting the charging current. It is reasonable to set the maximum to 500mA according to the circuit conditions.

Grex44 commented 5 months ago

Yes or anything more than 500mA. I would like to increase the charging speed time of the battery that is currently being used. Maybe increase it to 1A or 2A at most.

lewisxhe commented 5 months ago

Please note that replacing this resistor carries the risk of damage, which you should be aware of The picture below shows the location of the resistor image

Grex44 commented 5 months ago

Thanks for the assistance. I will follow up again if there is any results upon the swap of resistor.