That is a good make and model of charger, whether that specific one is good or not is yet to be seen.
Here is how to check it out:
Plug into power. Nothing should happen.
If it comes on, the relay had been bypassed, so the control board is probably bad.
If it stays quiet, plug into cart.
After a short delay, 3-5 seconds or so, it should start humming and ammeter will jump up into the 15A to 20A range.
If it doesn't jump up that high initially, a diode or the capacitor may be defective.
Within a half hour or so, the ammeter should decrease down to the 5A to 10A range and then gradually decrease from there until the charger automatically shuts off.
How long it stays on depends on how deeply discharged the battery pack was.
Good news is that even if it isn't working, it is 100% repairable.
Here is a manual for it.