For use in 24 and 36 Vdc applications, ProTech-C Series 3-stage commercial- and industrial-grade battery chargers employ solid-state technology along with charging and conditioning algorithms. All 5 models come in extruded aluminum casing and have autoranging global ac input of 95–250 Vac, 50/60 Hz. Compatible with various battery types, chargers can be switched between portable and onboard applications. Various safety functions are included.