Help Tank Lid/light Issue

[chigwellhammer]

Bought a tank from ebay the other day and the light inside the lid was working fine today i was setting it up and the light failed i then went to change the bulb and the battery completly fell out and is rusty as fook... What options do i now have??? As the light is a gonner

 

[chigwellhammer]

Problem solved just had to spend an extra £60 on a brand new lid for it