Fully charges dead battery in 2.5 hrs. Cradle securely clamps light even in rough conditions. Cannot overcharge battery QuickClik electronic switching to select from 5 operating modes Introducing the ML150LRS Rechargeable System, a compact version of the ML150LR. What&';s the point of a rechargeable flashlight if it takes forever to recharge? Well, this rechargeable LED flashlight by Maglite will recharge to 80% in a half hour. Now, that&';s fast! It&';s got 819 lumens and it will run at that level for more than 2 hours, unlike other flashlights that boast high lumens, but will barely last! In eco-mode, the flashlight will go for 15 hours nonstop with usable light.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }