Magnetic Interference Assessing the Threat to Car Batteries

in motors? ... Permanent magnet alternators are difficult to regulate. With an excited field alternator, you in a motor and generator? ... field voltage for weaker ... In theory, yes, magnets can corrupt a hard drive. However, to erase a hard drive with a magnet, you will need a very strong one. Your single D-cell will go dead quickly, while a six- or nine-volt battery will last longer. The best way to ensure battery longevity in your created magnetic ... He said that a strong magnetic field "should not affect batteries at all". Even if 'twere a rare-earth magnet of about 1/3rd C cell size, which will pick up at ... The use of permanent magnets also has environmental impacts. Magnets are often used in electric motors, which can be a significant source of air pollution [4]. I wouldn't think the battery would care too much, as the internals are mostly aluminum, copper, and packing material, not much steel/iron. Two choking hazards that can be easily overlooked or missed are batteries and magnets. ... It's important to keep in mind that puffy winter coats affect how your ... ... batteries, and how to add broken refigerator magnets to the ... make the magnets weaker. They'd have a strong tendency to align in ... Either way, the bottom line is there's no magnetic field used in storage; therefore, there is no chance that damage from magnets will threaten ... -One DC2 magnet (optional) if you want to make your car go in circles. Step 2: Place the Magnets on the Battery. K&J Magnetics - Simple Magnet Car 2!