But typically there may be inside defects that trigger energy to be launched explosively contained in the battery. The similar damaging outcomes can occur if a battery is overcharged. This is why engineers must be careful to design circuits that protect batteries. In explicit, batteries should operate solely within the vary of voltages and currents for which they have been designed. AAA batteries rank among the many hottest power cells on the market. These batteries maintain a excessive popularity for their exceptional capacity, dependable performance, and durable build quality.