Gel battery 12 V, 4 Ah, type YTR4A-BS in a "thick" case, for Japanese scooters (wording from the product name). Made by Jetar, China. A sealed maintenance-free battery: there is no need to top up the electrolyte. Manufacturer: JETAR.
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.
