?? ??V ?Ah ??? ??? ???-??????? (SLA) ?????????? ????????? ????????? ??????? ???? ?????? ??? ??????, ?? UPS ???????, ????????? ??? ????? ??????? ?????????????? ???? ?????? ?????????????? ???? ????, ??? ??????????? ????????? ???? ????????? ?????????? ??? ???????????? ??????? ??????? ?????? ???? CE, UL ??? ISO ?? ??? ??????????? ???????????? ??, ??? ?????? ??? ???????? ???? ??? ???? ???, ?? ????? ??????? ?????? ???? ???????? ????? ??? ????? ????????????-????? ???? ????????? ????? ??? ?? ???????????? ??????? ???, ??? ?? ????????? ???? ???????? ??????? ??????? ??? ??????? ???? ?????? ???? ?????? ?????