Check a ward's expiry before leaving your base for a while.
Aim at a ward to see its owner, remaining charge, supercharge time and permitted players. Its timers use real-world time, and the hover text marks those durations as IRL. An expired ward cannot be enabled until it is recharged. Recharge a normal ward with a Thunderstone using the Recharge key shown in its hover text; the default is R. A payment is consumed when the service confirms a successful extension.