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safety.. first?

Screenshot of search results for “why not use a rechargeable 9v battery on tongue”. AI response: “Using a rechargeable 9V battery on your tongue is dangerous because rechargeable batteries (such as NiMH) often have lower internal resistance than alkaline, allowing them to deliver a much higher, unregulated, and potentially painful current. While a standard 9V battery causes a harmless tingle, a rechargeable one can cause burns, severe tissue damage, or electric shock.”

Screenshot of search results for “9v nimh battery tongue”. AI response: “Testing a 9V NiMH (Nickel-Metal Hydride) battery with your tongue is a common, generally safe, and effective way to check if it has a charge. A working battery will produce a noticeable, sharp tingling or buzzing sensation when both terminals are touched to the wet surface of the tongue.”

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