It still lights up, so that’s something. 
We’ve nominated the First Saturday of the Month as our Vibrator Maintenance Day! 
We’ve got quite a sprawling collection, and there’s no chance we can use them all as regularly as they need to keep the batteries ticking over, so I pull them all out for a check once a month. Generally they can go 90 days or so, but there’s always one or two that need a bit of love.
And the travel lock is a great shout @AmyA 