How do I fix the relay

Hint 1 of 10:

You need the lazer.

Hint 2 of 10:

The battery isn't strong enough to accomplish the job.

Hint 3 of 10:

There's a new one somewhere.

Hint 4 of 10:

Like in Lab Storage.

Hint 5 of 10:

More specifically, in the lab uniform. Change batteries.