WFCO 9800 Series Deck-Mount Converter/Chargers now offers an industry first, Patent Pending Auto-Detect technology. This new microprocessor driven technology will recognize lithium ion and lead acid battery chemistries and automatically adjust the charging profile to match the battery type. Auto-Detect Enables RV owners to optimize their batteries without needing to change out an entire converter or operate a manual switch to properly charge batteries. Output ratings from 35A DC to 100A DC. Convenient deck-mount installation.