What can happen if a fire extinguisher is overcharged?

An overcharged fire extinguisher can indeed lead to leakage or bursting due to the excessive pressure inside the canister. Fire extinguishers are designed to operate under specific pressure ranges, and when they are overfilled, the pressure can exceed safe levels. This can cause the canister to rupture, which may not only render the extinguisher unusable but also pose significant safety hazards to users and surrounding individuals. Proper maintenance and adherence to manufacturer guidelines are vital to ensure fire extinguishers function effectively without risking failure due to overcharging.