The power supply for my old cordless drill has died but the drill itself is ready to give me many more years of faithful service (I hope!)

The label on the old transformer says 538W 11.6v 220mA 2.55VA
I have another here that says 12v 1.6A

What I want to know is if there any point in wiring this to the battery station replacing the original or is it too underpowered to charge the battery?

I have no idea how a mA compares to an A or what the VA part is (the replacement makes no mention of this or Watts)