For Lenovo Ideapad 120s series: 120S-11: 120S-11IAP 81A4 120S-14:120S-14IAP 81A5. For Lenovo Ideapad 110 110s series: 110-14: 110-14IBR 110-14ISK 110-14AST 110-15: 110-15ISK 110-15IBR 110-15ACL 110-15AST 110-17: 110-17IKB 110-17ISK 110-17ACL 110S-11: 110S-11IBR.
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