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bq27441电量计的正确使用(急)

Other Parts Discussed in Thread: BQ25895, BQ27441-G1

请教大家,产品使用5000 mah的锂电池,bq25895+bq27441-G1B,usb otg接口充电

按照Quickstart Guide for bq27441-G1文档,通过单片机的i2c配置了 Design Capacity、Design Energy、Terminate Voltage、Taper Rate这四个参数,但是读取SOC百分比数值变化较大,此时的电压为4.12v, RemCap、FullChgCap这两个的数值正常应该接近5000,怎么读取的值是从0慢慢往上加?

//battery para
#define BAT_DC 5000    //Design Capacity (mAh)
#define BAT_DE (500*38)    //Design Energy (mWh)  (5000*3.8)
#define BAT_TV 3700    //Terminate Voltage  (mV)
#define BAT_TR (50000/115)    //Taper Rate (0.1 Hr rate)  (5000/(0.1 × 115)) 

1、bq27441还需要配置那些参数吗?

2、bq27441还需要怎么标定或者测试来达到比较精准的数值吗

3、上面必要的四个参数设置完掉电会消失吗?每次上电都得重新配置?

4、该论坛TI技术人员回答问题似乎比较晚,有没有邮箱或者电话等其他方式可以联系?

感谢!!!