2004 Mercedes SL-Class Owner's Manual - Page 362

Practical hints Batteries Removing the batteries Removing the battery for electrical consumers Remove the screws securing the battery in the trunk. Remove the battery support and bracket. Take out the battery. Removing the starter battery Remove the screws securing the starter battery in the engine compartment. Lift the retaining bracket and remove the battery. Charging and reinstalling batteries Charge batteries in accordance with the instructions of the battery charger manufacturer. Reinstall the charged battery. Follow the previously described steps in reverse order. Warning! Reconnecting the batteries ! To avoid damage to electrical components, always reconnect the starter battery (in engine compartment) first. Reconnecting the starter battery Turn off all electrical consumers. Connect the positive lead and fasten its cover. Connect the negative lead. G Never charge a battery while still installed in the vehicle. Gases may escape during charging and cause explosions that may result in paint damage, corrosion or personal injury. ! Never invert the terminal connections! ! The battery, its filler caps, and the vent tube must always be securely installed when the vehicle is in operation. 361