Before you can transfer your balance, you must have a new, physical card in hand.
Always register your SEPTA Key card online immediately after purchase. This is the only way SEPTA can look up your balance and transfer it to a new card if you lose the physical plastic. septa card to card replacement
If you received a notification that your SEPTA Key card is expiring (usually valid for 5 years): Before you can transfer your balance, you must