Alternators & Regulators - MOTORCRAFT With Separate Regulator: Service: Battery

Do not reverse battery connections. Negative terminal must be connected to ground. When charging battery, cables must be disconnected from battery before connecting charger. Do not use charger as a booster for starting engine. If booster battery is used to start engine, negative cable of booster must NOT be connected to negative cable of vehicle battery. Attach instead to engine bolt head or similar clean, grounded contact.