Shockrod not working

[Zedi]

Whenever I used a shockrod it says:
Sorry, but that object cannot be used in that manner.

I have it equipped.
I tried all commands
u shock liz
use shock liz
use shockrod liz
u shockrod liz

[Daniel Spain]

Whenever I used a shockrod it says:
Sorry, but that object cannot be used in that manner.

I have it equipped.
I tried all commands
u shock liz
use shock liz
use shockrod liz
u shockrod liz

try discharge instead of use