This document provides specifications for high frequency battery chargers suitable for charging lead-acid and gel batteries. The chargers have features like waterproofing, compact size, IP-66 protection, and protections against polarity reversal and short circuits. They are available in models for 12V, 24V, 36V and 48V batteries with various current ratings from 6A to 25A. Dimensions and performance characteristics like charging capacity are listed for each model. The chargers conform to relevant European directives and standards and include input cables and polarized battery cables.