Retrofittable Swing-Arm DC Fast Charger | New Unit or Add-on Retrofit, Station Upgrade Product Overview factory-integrated swing-arm for new units, or add-on retrofit for existing DC chargers — no full replacement needed. Solves cable abrasion and frequent connector damage on old piles. 4G + OCPP for billing and remote maintenance. Suitable for aging station and industrial lot upgrades. Key Features The side panel is integrated with a touchscreen, charging status indicators,