BQ4050: learning cycle and reducing max error to 1% or 2%

Mec DEv

Part Number: BQ4050

1. We have bq4050 board, but we dont have temperature chamber so cannot have gpc chem files.. SO we selected only EDV rather than CEDV

2. How to do its learning cycle so that max error comes down to 1 or 2% and cycle count start increading.

0 Wyatt Keller over 4 years ago

Hello Mec,

The gauging accuracy is less when you use EDV only and not CEDV. The MaxError may not be very useful in EDV only.

There's more information about the EDV_CMP bit here: e2e.ti.com/.../bq4050-battery-capacity-jump

Are you running tests and seeing MaxError is not incrementing after a few cycles?

Sincerely,

Wyatt Keller

Power management forum