The 12N9-4B-1 Flooded Conventional by GS Yuasa is known as a Flooded Conventional motorcycle battery. This means it is open to the environment and has a vent tube that can leak acid. The user will be required to fill the battery with acid (must locate locally) and then charge for the first time prior to use. From time to time you will then need to add distilled water to help maintain the electrolyte balance above the minimum threshold.
GS Battery Inc. is a subsidiary of the global leader in motorcycle and power sport battery production, GS Yuasa Corporation of Japan. Although GS Yuasa's American headquarters are in Georgia they make their small engine batteries in Pennsylvania, Japan and Taiwan. The 12N9-4B-1 Flooded Conventional battery is made in Taiwan.
Your GS Yuasa 12N9-4B-1 battery is 12V and has an amp hour capacity of 9 and a cold cranking amp reading of 85. This battery comes with a 12 Mo. free replacement warranty. The following are a sampling of replacement part numbers: 12N9-4B-1,MB9U,UB9-B and 156