No schematic changes were completed because no ACUs are currently available.
For the 14 V charger, the next step is to identify the battery chemistry, capacity (Ah), maximum charge current, and available input supply. A fixed 14 V source is not universally safe: for a 12 V lead-acid battery, charging typically requires a current-limited CC/CV profile with voltage chosen by battery type and temperature; lithium packs require the exact series-cell charging profile and a BMS. Once ACUs are available, I can design and verify the charger around those specifications.