Main risks

• Electric shock, sparks and arcing when connecting or disconnecting.
• Battery explosion due to accumulation of flammable gases if a spark is generated or there is poor ventilation.
• Chemical burns from contact with electrolyte in lead–acid batteries.
• Damage to vehicle electronics due to reverse polarity, voltage spikes or incorrect connections.
• Overheating of cables or clamps due to poor contact or prolonged use, with risk of burns or fire.
• Pinching or cuts when handling clamps; injuries from moving engine parts during starting.
• Inhalation of vapours or smoke in the event of overcharging or a damaged battery.
• Damage to lithium batteries if incompatible equipment is used.

Safe use

• Check voltage compatibility (e.g., 12/24 V) and the battery type before connecting.
• Inspect the condition of the equipment: insulation intact, clamps firm and clean, free of corrosion or cracks.
• Wear eye protection and gloves; remove metal jewellery and avoid loose clothing.
• Work in a well-ventilated area away from ignition sources; do not smoke.
• Park with the handbrake applied and engine off; switch off electrical loads before connecting.
• Typical jump-start connection: red clamp to the positive (+) terminal of each battery; black clamp to an earth point on the chassis of the discharged vehicle, away from the battery. Disconnect in the reverse order.
• For chargers: connect the clamps to the battery before plugging into the mains; disconnect from the mains before removing the clamps. Place the charger on a stable, clear surface.
• Prevent the clamps from touching each other; keep the cables away from fans, belts and hot surfaces.
• Monitor for abnormal temperature, noises or odours; stop use if they appear.
• Observe recommended cranking times and allow the equipment to rest between attempts.

Storage and maintenance

• Store the equipment clean and dry, away from moisture, dust, oils and direct sunlight.
• Coil the cables without knots or twists; do not place weight on them or run them over sharp edges.
• Protect the clamp jaws to prevent dirt and accidental contacts.
• Clean clamps and insulation with a dry cloth; ensure everything is completely dry before the next use.
• Periodically check springs, screws and insulation; replace the equipment if there are cuts, exposed wires, loose parts or a burning smell.
• Keep the charger's ventilation grilles clear and leave space around it during use and until it cools.
• Unplug the charger when not in use.

Restrictions on use

• Do not use with batteries that are swollen, cracked, frozen or leaking, or that emit smoke or a strong odour.
• Do not use in the rain, on wet surfaces or in unventilated spaces, or where flammable vapours are present.
• Do not reverse polarity or allow the clamps to touch; do not force loose or corroded connections.
• Do not exceed the current or charging mode for which the equipment is designed, nor cover the charger when in operation.
• Do not place the charger on the battery or inside the engine bay while it is operating.
• Do not use on the high-voltage system of hybrid or electric vehicles; if applicable, connect only to the 12 V points specified by the vehicle manufacturer.
• Do not modify the equipment or carry out makeshift repairs.
• Keep out of reach of children and do not allow use without appropriate supervision and understanding.