Other Parts Discussed in Thread: BQ25896, BQSTUDIO
TI's lithium battery charging management scheme is used in the product, and bq25896 + bq27421 scheme is used. It's a 1300mAh lithium battery.
Now the problem is that after several successive rounds of charging and discharging, the full charge value read after full charge is quite different, as shown in the figure below.
When a new lithium battery is installed, the power of the vehicle will drop after charging and discharging three wheels.
1. What is the reason for the decrease of battery capacity?
2. This question should be checked from bq25896 or bq27421. How can we determine this question.
