User manual NINTENDO GAMEBOYADVANCE

[. . . ] Do not mix alkaline with any other type of battery (carbon zinc, nickel cadmium, etc). Do not mix different brands of batteries. Do not use nickel cadmium (nicad) batteries in your Game Boy, Game Boy pocket or Game Boy Color. for Game Boy Advance use only alkaline batteries. [. . . ] Do not leave used batteries in the Game Boy. When the batteries are losing their charge, the power light may become dim, the game sounds may become weak, or the display screen may be blank. When this happens, promptly replace all used batteries with new batteries. do not leave batteries in the Game Boy or accessory for long periods of non-use. Do not leave the power switch on after the batteries have lost their charge. When you finish using the Game Boy, always slide the power switch OFF. Make sure that the positive (+) and negative (-) ends are facing in the correct directions. Leakage of ingredients contained within the battery pack, or the combustion products of the ingredients, can cause personal injury as well as damage to your Game Boy. if battery leakage occurs , avoid contact with skin. If contact occurs, immediately wash thoroughly with soap and water. Connect ONLY special accessories designed for use with the Game Boy to the external power supply terminal or the extension connector. Do not spill liquids on the Game Boy, Game Paks or any other of the Game Boy components. To clean, use a soft slightly damp cloth. Allow the component to dry completely before using again. Do not rapidly turn the power switch on and off, as this may shorten the life of the batteries and cause battery backed-up Game Paks to lose your stored game information. For the best game image, look directly at the Game Boy display from the front and operate only in a good light. To avoid dirt or dust from getting into the Game Boy, always leave a Game Pak loaded (with the power off), when not in use. When using an AC adapter, make sure you are using the correct model appropriate for your Game Boy. Always unplug the AC adapter from the wall outlet when not in use. Do not blow on them or allow them to get wet or dirty. [. . . ] Doing so may damage the Game Pak and/or the Game Boy. Do not store it in places that are very hot or cold. Do not clean with benzene, paint thinner, alcohol or any other solvent. Always check the Game Pak edge connector for foreign material before inserting the Game Pak into the Game Boy. [. . . ]