7v聚合物锂电池300mah3.7v3.
较于同尺寸的galaxy s20 /s20 ultra下降了300和500mah,来到了4300mah
501440501340300mah电动牙刷tws蓝牙耳机挂脖耳机聚合物锂电池
厂家直销602030-300mah聚合物锂电池 蓝牙耳机电池 蓝牙音箱电池 锂美
镍镉电池五号镍镉充电电池镍镉五号充电电池nicdaa300mah
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