Battery tray clean up

[Harmon]

I have a lot of buildup of what I guess is acid crust in the battery trays, what can you suggest to clean them out with? Shop vac? Water rinse ?

 

[Sublimetime]

baking soda- just be sure not to get any in the batteries.
I will neutralize any acid and clean it up

 

[Harmon]

baking soda- just be sure not to get any in the batteries.
I will neutralize any acid and clean it up

SOme baking soda and water rinse? And what to do with run off?