Battery 12 V, 4 Ah, type YTR4A-BS in a "thick" case, Guyue brand, for Japanese scooters (wording from the product name). Compare the case size and terminal layout with your original battery.
Replace the battery if it does not hold a charge well, the starter turns sluggishly, or the voltage drops when starting. Before buying, compare the dimensions and terminal layout with your original battery.
