When to remove batteries?

[Thetof91]

Lithium battery dont leak like "normal" batteries.. And if they leak it will not be the same as other where there is coming acid out of them..
Else they have like 10-15 years they can just lay on your shelves with out anything would happen to them..
Alkaline cell batteries is there a chance of leaking and make some problems.. But what I know they use lithium in ds and controllers