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我的单节电池电压范围是3.7-4.2推荐一个电池过压器件，类似于BQ29700？谢谢！
Hi
BQ2946系列： http://www.ti.com.cn/cn/lit/ds/symlink/bq2946.pdf
谢谢！！我的电池充到4.2V就行了，我是选择过压4.35V、4.225V、4.45V哪个呢，我不知道超出多少Mv合适。
这个是要根据电芯规格书来定的。4.35和4.45对4.2V电芯来说保护点太高了
