Fix two bugs (#12144)

Content.Client/Hands/Systems/HandsSystem.cs

@@ -285,6 +285,8 @@ namespace Content.Client.Hands.Systems
             if (!Resolve(uid, ref handComp, ref sprite, false))
                 return;
 
+            // visual update might involve changes to the entity's effective sprite -> need to update hands GUI.
+            if (uid == _playerManager.LocalPlayer?.ControlledEntity)
                 OnPlayerItemAdded?.Invoke(hand.Name, held);
 
             if (!handComp.ShowInHands)

Resources/Prototypes/Entities/Structures/Power/chargers.yml

@@ -58,6 +58,7 @@
   - type: ItemSlots
     slots:
       charger_slot:
+        ejectOnInteract: true
         whitelist:
           components:
           - HitscanBatteryAmmoProvider