About the BTI AC Adapter
BTI 4X20E50558-BTI 20V 135W AC ADAPTER COMPATIBLE WITH 00HM686, 45N0364, 45N0486, 4X20Q85539, 5A11K67846, ADL135NLC2A, 00HM688, 45N0367, 45N0552, 4X21L38720, 5A11K67847, THINKPAD A275, A475, L470, L570, P1 GEN 5 21DC, P1 GEN 5 21DD, P15V GEN 3 21D8, P15V GEN 3 21D9, P15V GEN 3 21EM, P15V GEN 3 21EN, P16 GEN 1 21D6, P16 GEN 1 21D7, P51S, T15P GEN 3 21DA, T15P GEN 3 21DB, T25, T470, T570BTI 4X20E50558-BTI 20V 135W AC ADAPTER COMPATIBLE WITH 00HM686, 45N0364, 45N0486, 4X20Q85539, 5A11K67846, ADL135NLC2A, 00HM688, 45N0367, 45N0552, 4X21L38720, 5A11K67847, THINKPAD A275, A475, L470, L570, P1 GEN 5 21DC, P1 GEN 5 21DD, P15V GEN 3 21D8, P15V GEN 3 21D9, P15V GEN 3 21EM, P15V GEN 3 21EN, P16 GEN 1 21D6, P16 GEN 1 21D7, P51S, T15P GEN 3 21DA, T15P GEN 3 21DB, T25, T470, T570