MEAN WELL NPP-1200/1700 Battery Chargers and Power Supplies are innovative 2-in-1 modules that allow the user to flexibly switch the operating mode to battery charger or power supply. In addition to running a three-stage charging curve for lead-acid batteries, the units can also be switched to provide a constant voltage power supply for normal loads. Changing the operation mode is as simple as plugging and unplugging a short-circuit pin on the front panel. MEAN WELL NPP-1200/1700 Battery Chargers and Power Supplies feature 1200W and 1700W rated wattage, adjust output current, and ultra-wide output voltage (10.5V to 21V, 21V to 42V, 42V to 80V). These safe and durable dual-purpose modules are suitable for use in charging systems for E-scooters, buses, surveillance systems, industrial automation machinery, mechanical and electrical equipment, and more.