Detailed instructions for use are in the User's Guide.
[. . . ] Call Customer Service department for return/ replacement instructions. Travel Cooler/Warmer takes longer than 3 hours to reach desired temperature inside  Low battery or supply voltage.  Unit will attain desired temperature more efficiently if items are pre-heated or pre-chilled. Keep warmer lid closed during operation, and reclose it quickly when adding or removing items. [. . . ] Keep the HOT/OFF/COLD switch in OFF position for five minutes before switching between HOT and COLD. Keep cooler lid closed during operation and reclose it quickly when adding items to it or removing items from it. Clean unit as described in the Care & Maintenance section of this manual. ⷠThe cooler takes about 120-200 minutes to reach its maximum cool temperature (approximately 50ºF (27. This will assist the cooler in reaching the lowest temperature as quickly as possible. ⷠThe cooler will automatically shut off when vehicle battery power falls below 10. If the engine is switched off for a long period (overnight), it is recommended the cooler be disconnected from the accessory outlet to avoid draining the vehicle's battery. Food will stay cool for some time after the unit is disconnected or turned off, but temperature will rise to that of the surrounding air. ⷠObserve common sense hygiene rules, as with any cooling unit. Do not eat or drink perishable items that may have spoiled or become contaminated from lack of proper temperature control. The unit's warming system is monitored by an automatic switch that turns the heating system on and off when excessively high temperatures are reached. This unit is intended for use with a 12 volt DC power source that can provide at least 5 amps of current. ALWAYS ensure that there is adequate ventilation and free flow of air around the unit, so that air expelled by the fan is effectively dissipated. ⷠWhen operating the unit in a vehicle or boat cabin, adequate ventilation must be provided by an air conditioning system or open window. In a car with windows up, air temperatures can reach 150°F (65. This unit is intended for portable use only; it is not designed to be built-in or recessed -- this would interfere with the unit's air dissipation system, and could cause a fire or other safety hazard. If the cord becomes worn or damaged, discontinue use and contact your nearest Authorized Service Center. ⷠNever allow the cooler/freezer and warmer to be immersed in water or other liquid. Insert the 12 volt DC plug on the power cord into the 12 volt DC socket on the portable power supply. Beverages  sodas, beer, wine, juice, milk, iced tea or coffee, shakes, thirst quenchers, water and more -- in cans, bottles, cartons, pouches, sport bottles, etc. ⷠFood  salads, sandwiches, deli meats, hamburgers, hot dogs, meat or fish, buns, condiments and dips, etc. ⷠFood  leftovers, pre-packaged/pre-heated meals, take-out foods, soups, covered dishes, stews, casseroles, etc. [. . . ] When using the unit as a warmer, it will warm to approximately 120°F (48. On cold days, the unit will need more time to reach the maximum warm temperature. These are particularly helpful in keeping your unit cold while unplugged. The Black & Decker ® Thermo-Electric Travel Cooler/Freezer & Warmer can be used with most food and beverages, either cold or hot. [. . . ]