Coleman BatteryLock flashlight
Dead batteries in emergency flashlights are at least annoying and possibly dangerous. Ghost battery drain causes unused batteries in flashlights to discharge faster than their shelf life indicates. Coleman’s Divide flashlights disconnect the batteries inside flashlights from their contact points, which is like putting the batteries “on the shelf” while they are not in use, so the batteries last longer. The LED flashlights have low- and high-power settings, and aluminum cases, and the BatteryLock feature works by twisting the bezel. The flashlights are available only at Walmart until spring, and they cost between $17 and $35, depending on the size.