What should not be placed on top of new batteries?

Placing heavy objects on top of new batteries should be avoided because it poses several risks. Heavy items can create undue pressure on the batteries, potentially causing physical damage, such as dents or ruptures in the casing. This damage can lead to leaks or short circuits, which compromise the battery's integrity and performance. Furthermore, excessive weight can affect the battery's ability to connect securely with its terminals, possibly leading to inefficient power delivery or complete failure. In contrast, lightweight tools, new adhesives, and used batteries do not typically carry the same risk of damage when placed alongside or on top of new batteries, though caution is still advisable with all items.