Are Energizer e2 battery's rechargeable?

I got a digital camera and the batterys that came with it died in a half hour

No, the Energizer e2 Lithium batteries are not rechargeable. However, they are quite powerful and will last much longer than an ordinary battery.
Their only downside is that they are expensive and are throw away.
Rechargeable batteries are another option, and are more cost effective. You would need to purchase a charger and batteries (NiMH, 2500 mAh).

no i have them and you cant recharge them

Read the label on the battery.

If the batteries say rechargeable then they are. Although regular energizer batteries have rechargeable batteries that are green coloured.