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A weak or failing converter leaves your RV's 12-volt system underpowered and your battery undercharged, even when you're plugged into shore power. The Parallax 8355 handles that conversion so your lights, fans, and other 12-volt components get steady power while the battery stays topped off.
A practical replacement for RVers dealing with an aging or underperforming converter who want their 12-volt system and battery charging back to full strength.