※ This item cannot be purchased by those who are unable to transport it by air. This is exclusively for Yamaha and Bridgestone electric bicycles. It is a model that can be used for the PAS series, etc. Due to regulations, it cannot be listed as a battery, but it is listed as "new, unused" although it is a used item. Please consider purchasing only if you have a deep understanding of flea market apps (especially Mercari) and can check the condition in the images. We do not accept returns due to the nature of the product and to prevent replacement, etc. Please be aware of this. 【Simple Internal Diagnostic Results】 20 seconds long press: 2 blinks 30 seconds long press: 4 lights 1 blink: Number of charges 0-100 times 1 light: Number of charges 101-200 times 2 blinks: Number of charges 201-300 times 2 lights: Number of charges 301-400 times 3 blinks: Number of charges 401-500 times 3 lights: Number of charges 501-600 times 4 blinks: Number of charges 601-700 times 4 lights: Number of charges 701 times or more 1 light: Actual capacity 0-24% 2 lights: Actual capacity 25-49% 3 lights: Actual capacity 50-74% 4 lights: Actual capacity 75-100%