Up until the recently, my H51W has been working just fine. Actually, since I got it last Christmas, it's had only occasional use. A couple months ago, I started using it as a middle-of-the-night-bathroom-light, using mostly just its lowest settings. In about a week, the battery is dead. It's only on one of the two lowest settings, and only for less than a minute per night. I use eneloops, and I've switched out batteries to make sure it was the light and not a faulty battery. As mentioned, I've had it for less than a year. Is this a common problem? Will Zebralight replace or repair it? Help!