If "shaking" doesn't appeal to you, try this solar rechargeable flashlight. Technology has given us better solar panels lately, and the miniature one in this will keep the rechargeable battery fully charged—even with just room level light. This means if you just hang it up in the room, it will always work when you reach for it. Even if the room has been dark, or it was in a drawer, an emergency lithium CR-2032 back-up battery is selectable, and can take over. And it IS replaceable. Only 7 inches long, it is waterproof and floats. It is the perfect "always there when you need one", spare flashlight. SW 1.3 lbs