Alkaline and nickel-cadmium AA batteries corrode when the caustic material inside leaks onto the steel casing. This happens as a natural part of the battery's life cycle, but can occur prematurely if the battery is exposed to high temperatures.Know More
Alkaline batteries contain potassium hydroxide, a caustic substance that is not used up as the battery discharges. Because the potassium hydroxide remains after the battery's useful life is over, dead batteries carry the risk of corrosion and leakage. They must be disposed of in accordance with local laws.
Rechargeable nickel-cadmium batteries also contain potassium hydroxide, and have the same leakage risks as alkaline batteries in high temperatures. Nickel-cadmium batteries carry an additional risk: because they are not discarded after use, they are more likely to be left inside of devices during long-term storage. When batteries leak inside of a device, the potassium hydroxide corrodes plastic and metal parts and damages the device.
Other types of AA batteries do not have the same corrosion risks that alkaline and nickel-cadmium batteries do. Lithium batteries do not corrode, but they do carry a risk of fire and explosion. This is due to the reaction between the lithium in the batteries and moisture in the air when the metal shell of the battery is opened.Learn More
UM3 batteries are standard AA batteries, which are produced across multiple battery types. The most common types of AA battery are alkaline, NiMH and lithium. UM3 is the JIS name for AA batteries.Full Answer >
Replacing a smoke detector's battery is crucial to a family's safety. After locating the smoke detectors and determining how often the battery needs to be changed, read the instructions, remove the back cover, remove the old battery, and replace it with a new battery before reinstalling the detector.Full Answer >
Connecting two 12-volt batteries in series adds their individual voltages together to create a 24-volt battery pack. The series arrangement does not increase the capacity of the batteries.Full Answer >
Butyl tape can be used to reinforce underground pipes and joints likely to corrode, or it can be used to seal air vents, ventilation systems and more. Butyl tape can also be used in emergency situations for quick car repairs, covering leaks and patches long enough to reach a service area.Full Answer >