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BQ4050打样问题

Other Parts Discussed in Thread: BQ4050

请教各位大师专家们:

        最近打样了一批BQ4050电池板,出现以下问题点还请帮忙解答一下:

       电池板放着5天后容量会丢失20%左右(而Demo板不会,一样的配置文件及dataflash),而电压也会下降一点点,这个是不是跟采样电阻的精度有关系呢?我的采样电阻在电流校准后上位机显示1.053mOhm,而Demo板为1.000mOhm,容量流失原因是否为采样电阻的原因呢?