BQ25731: measure battery level

user4125449

Part Number: BQ25731
Other Parts Discussed in Thread: BQ40Z50

Dear all

Maybe I am missing something but I can't find in the datasheet of the BQ25731 if this chip is able to measure the battery level. Anyone with experience here?

best regards

Matthias

over 3 years ago

0 Khalid Bairuti over 3 years ago

TI__Expert 4780 points

Hello Matthias,

This device has an ADC capable of reading VBAT.

Thanks,

Khalid

0 user4125449 over 3 years ago in reply to Khalid Bairuti

Intellectual 330 points

Hi Khalid,

thanks for your response, but we're not looking for the current battery voltage, we want to know the charge level (how much power is left in the battery).

regards

Matthias

0 Khalid Bairuti over 3 years ago in reply to user4125449

TI__Expert 4780 points

Hello Matthias,

Measuring the charge level would require a Battery Gauge, such as BQ40Z50.

Thanks,

Khalid

Power management

Power management forum

BQ25731: measure battery level