Q. How long does a gas lighter last?

Answer

If used intermittently, a full-sized lighter is rated for an hour of burn time. Mini lighters often only last for around twenty minutes before they run out of fuel. Most mini lighters only last for around twenty minutes before they run out of gasoline. On the other hand, if a user ignites it and maintains it lit, a user has about 10 minutes before the top begins to melt. It's not unusual to discover several-year-old lighters in a drawer that still function. So long as a user has access to replacement fuel, the lighter will last only as long as the flint and the mechanical parts that hit it wear out.