apc batts

I have a couple sealed in box apc syrm 2-6kva batt packs butt they ben sitting since 2007. Could the batts still be chargable good?

The short answer is YES, they possibly can be recharged and will have some life, but usually they degrade. So, the ones you bring back to life will have a lower capacity (less AH). I usually try to recharge the batteries and ones that are good I can use to test other backups to see if they are working.