The Lumedyne Vehicle Hyper Charger will charge 1 or 2 Lumedyne batteries twice as fast as the CQ2V Vehicle Charger and it's 1/3 the size (3 x 1.4 x 6.75") and weight (1.1 lbs). The Hyper Charger can also run a Lumedyne Power Pack directly from a car, boat or RV using the included 20' cable and "cigarette lighter" style DC plug. A medium battery can be fully charged in 2 hours. In addition, the Hyper Charger features a 7-light battery gauge that indicates the level of the charge in the battery, eliminating any unpleasant surprises from uncharged batteries. By watching the gauge as a battery charges, you can catch any low-performing batteries before they become a major problem. The CQ2V charger will be discontinued--batteries s/n 149300 or higher are fully compatible with the Hyper Charger and older batteries can be modified to be compatible.