The Alpha AlphaGuard Battery Charge Management System (Not for Sale in the USA or Canada) monitors and protects your batteries by spreading the charge voltage equally across all the batterie in a string, ensuring that every battery in the string, whether old or new, is properly charged. With an ideal voltage always across each battery, life and runtime are optimized. Individual batteries in a string can be replaced as they fail, allowing batteries to be left in service longer. This stops the wasteful and costly practice of disposing of batteries that may have years of useful life left because one battery in a string fails or replacing batteries based on a scheduled maintenance program. With the optional communications cabling and interface module individual battery measurements are made at the batteries and reported, improving accuracy and allowing the supply to determine End-of-Discharge by individual batteries instead of the string voltage and reporting to status monitoring systems.