The WF-9800 Series converter/chargers are versatile, advanced power source solutions. The WF-9875 model provides 75 amps of clean, reliable DC power, which is ideal for powering electronics and appliances. The 9800 Series provides clean power, even without filtering from a battery. Quiet operation is assured as the cooling fan runs only when needed. Another advantage is FCC Class B compliance for the WF-9875 model, which means that the converter does not cause interference with televisions, radios or other signals. Automatic three-stage battery charging maintains your battery?s life with three nominal voltage output modes: 13.2V DC range ?float? mode, 13.6V DC range ?absorption? mode, and a 14.4V DC range ?bulk? charge mode. Electronic current limiting automatically shuts down the power during overload or short-circuit conditions.