HP Envy 13t internal lithium battery 538345-0013.0V internal lithium battery - For the Real Time Clock (RTC) control Compatible Models:HP Envy 13-1003xx Notebook PC VG837ASHP Envy 13t-1000 CTO Notebook PC VK918AV, VK919AV, VK920AVHP Envy 13-1030nr Notebook PC VM173UA, VM173UARHP Envy 13-1030ca Notebook PC VM174UA, VM174UARHP Envy 13-1099xl Notebook PC VM175UA, VM175UARHP Envy 13t-1100 CTO Notebook PC VP823AV, VP824AV, VP825AV, VR869AVHP Envy 13-1007la Notebook PC VU073LA, VU073LARHP Envy 13-1001tx Notebook PC VV295PA, VV295PARHP Envy 13-1002tx Notebook PC VV313PAHP Envy 13-1003tx Notebook PC VV718PAHP Envy 13-1004tx Notebook PC VV719PA, VV719PARHP Envy 13-1005tx Notebook PC VW476PAHP Envy 13-1006tx Notebook PC VW501PA, VW501PARHP Envy 13-1007tx Notebook PC VW502PAHP Envy 13-1008tx Notebook PC VW503PA, VW503PARHP Envy 13t-1100 CTO Notebook PC WG152AV