EPS power units require charging after approximately 1,000 to 1,500 kilometers of riding depending on shift frequency and terrain, and the AC19-BCEPS charger handles the recharging process for V2, V3, and V4 power units. The charger plugs directly into the interface unit or connects to the power unit through the appropriate cable, then monitors the charging cycle to prevent overcharging and battery damage. Campagnolo designed the charging circuit with automatic cutoff that stops power delivery once the battery reaches full capacity, which extends overall battery lifespan compared to simpler chargers that rely on manual disconnection.

The unit includes automatic voltage switching that accepts 100 to 240 volts at 50 or 60 hertz, which covers household power standards worldwide without requiring adapter selection or voltage adjustment. The charger also works with 12-volt vehicle sockets, so you can charge your power unit from a car during travel to events or multi-day rides. Physical dimensions measure 106 millimeters by 84 millimeters by 35 millimeters, compact enough for packing in a travel bag without consuming significant space alongside tools and spare parts.

Safety circuits protect against three failure modes: overheating during extended charging sessions, short circuits if connections develop faults, and excessive charge times that indicate damaged batteries drawing abnormal current. The charger detects these conditions and interrupts power delivery before damage occurs to either the charger or the power unit. This protection matters because lithium batteries become safety hazards when charged incorrectly, and the monitoring system prevents scenarios where a damaged cell continues drawing power indefinitely.... Read More