The variostring high voltage MPPT solar charge controller ensures an optimal charge of the battery maximizing the solar production. First of its kind, the variostring achieves the highest conversion efficiency in the world from high voltage solar power (900V) to 48V battery voltage, including a galvanic isolation between the PV and battery. 100% designed and manufactured in Switzerland, the variostring offers a 10-year warranty.
Advanced battery processor (lead-acid)
Communication with lithium BMS
Configuration, display, datalogger
Remote monitoring (Portal & App)
Communication bridges (openstuder)
solar charge controller
External auxiliary contacts module