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????? ??? ?????? 51r ?? LONG WAY Battery (Kaiying Power & Electric Co., Ltd.). ?? ????? ??? ???????? ????? ?????? ?????? ???? ?????? ?????? ????? ??????? ????? ?? ????????? ?? ???????? ??? ???????? ??????? ????? ???????. ???? ??????? ???????? ??????? ???????? ???? ?????? 51r ???? ??? ????? ????? ?? ???? ?????? ??????? ??? ???? ??? ????? ?????? ?????? ?? ?? ???. ?? ????? ?????? ?????? 51r ????? ????? ?????? ??????? ??? ????? ????? ????? ????? ??????? ??? ?? ???? ???? ??????? ?????. ???? ??? ???? ?????? ?? ????? ????? ????? ?????? ?? ??? ?????? ??????? ????? ???????? ??? ?????? 51r ?????? ??? ????? ?????? ??????? ???????? ??? ?????? ??????????? ??? ?????? 51r ?????? ????? ??????? LONG WAY Battery ??????? ?????? ???????. ????? ????? ?????? 51r? ????? ?? ??? ?? ??? ???? ??? ?? ???? ????? ????? ???????. ??? ????? ???? ???? ?? ????? ?????? 51r ??????? ?????