The Excel Series model CBHD1-XR-P is a high frequency battery charger suitable in a wide range of applications for recharging deep cycle flooded, gel and agm batteries. Using advanced resonant technology it achieves an electrical efficiency greater than 90% in an extremely compact package. Both current and voltage output are finely controlled regardless of AC input. Users can select from 4 different pre-programmed charging curves to suit a variety of lead-acid battery brands and types.