【Wide Application】 The WF-9855 (55 Amp) Deck Mount Charger/Converter is versatile, advanced power source solutions, excellent replacement part for RV Trailer Camper 9800 Series. Easy to use, the WF-9855 converter provides a convenient, cheaper, long-term option that eliminates the hassle of swapping out a whole unit. With versatility like this, it’s ideal for use in a wide array of recreational vehicles. 【Excellent Performance】 The WF-9855 model provides 55 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. 【Advantage】The WF-9855 55 amp power converter does not cause interference with televisions, radios, or other signals. Electronic current limiting automatically shuts down the power during overload or short-circuit conditions. Quiet operation is assured as the cooling fan runs only when needed. 【Safety and Durability】 Automatic three-stage battery charging maintains your battery’s life with three nominal voltage output modes. WF-9855 55 Amp Deck Mount Charger/Converter with Lithium-Ion Switch Replacement for RV Trailer Camper 9800 Series