1、OE Number: The part numbers for reference are WF‑8955‑MBA, WF‑8955‑AD‑MBA. Please confirm whether it is consistent with the OE you need to avoid wrong buying and other problems. 2、3 Stages Smart Charge: The converter features 14.4V for bulk charge, 13.6V for normal charge, 13.2V for trickle charge. Automatically reduces power to trickle mode when fully charged, in this mode you can always maintain your battery. 3、Silent Fan: The fan of this power center automatically adjusts the air speed according to the battery temperature to ensure it runs when needed. The silent fan is designed so that you will not be disturbed even when you are sleeping. 4、Premium Materials: The battery converter is made from sturdy and high strength material, ensuring that the output voltage and charging profile are the same as your original converter, providing a better experience and increasing battery life. 5、Versatile Application: Suitable for 12V RV batteries, the main boar offers upgraded 3 stage charging for versatile and efficient power conversion, also easy to use and install. Item Type: RV Power Converter OE Number: WF-8955-MBA, WF-8955-AD-MBA Input Voltage: 12V Output Voltage: 110V Current: 55A 3 Stage Charging: Bulk Charge: 14.4V, Normal Charge: 13.6V, Trickle Charge: 13.2V Fitment: Suitable for 12V RV Battery 1 x RV Power Converter 1 x User Manual