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Dec 12, 2025

A day to check your car batteries!

Today, December 12th, is Battery Day 「バッテリーの日」. The Battery Association of Japan established this day as "Car Battery Day" in 1985, but the name was changed to "Battery Day" in 1991. The date comes from the fact that the defensive positions of baseball batteries are represented by the numbers "1" and "2"!


It encourages people to check their car batteries, especially during the harsh winter months. On this day, there is also a battery as in baseball battery anniversary, and the (Car) Battery Association selects and awards the best battery pair from each of the Central and Pacific Leagues! There is also a "Battery Day," on November 11th. In addition, November 11th to December 12th is "Battery Month."


I debated whether to share this random anniversary, but ultimately decided to, because three of my closest friends all had car issues in the last month! Battery Day is a good reminder to check that your car battery is in good working order. 


A day to check your car batteries! photo

BigfamJapan

BigfamJapan

Former nickname was "Saitama". Changed it to save confusion on place review posts! Irish, 20+ years in Japan! I also write on my personal website: insaitama.com


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