Car battery
Average retail price
- Cheapest surveyed city
- ¥4,980 Saitama
- Priciest surveyed city
- ¥8,980 Tottori
Retail price survey conducted by the Statistics Bureau of Japan. This is a survey average, not a shop price — actual prices vary by store. 総務省統計局 小売物価統計調査 · Surveyed items and specifications
Key facts
Car battery costs ¥7,549 per piece in Japan as of August 2026 — the unweighted average of 46 surveyed cities, up 1.6% from a year earlier. Measured as an index, the official CPI for car battery reads 111.6 (2020 = 100) in August 2026, up 0.9% year on year and up 11.4% over five years.
Car battery sits in the transport & communication group of Japan's CPI basket, with 260 monthly observations from January 2005 to August 2026. The series peaked at 119.0 in April 2024 and bottomed at 65.7 in May 2005; the latest reading is -6.2% against that peak. Against ten years ago it is +26.4%.
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 88.7 | +0.3% | 12 |
| 2016 | 88.3 | -0.5% | 12 |
| 2017 | 87.7 | -0.7% | 12 |
| 2018 | 93.6 | +6.7% | 12 |
| 2019 | 98.3 | +5.0% | 12 |
| 2020 | 100.0 | +1.7% | 12 |
| 2021 | 100.0 | 0.0% | 12 |
| 2022 | 103.7 | +3.7% | 12 |
| 2023 | 112.6 | +8.6% | 12 |
| 2024 | 116.9 | +3.8% | 12 |
| 2025 | 111.4 | -4.7% | 12 |
| 2026 | 111.1 | -0.3% | 8 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Average retail price by month
| 2026-08 | ¥7,549 |
|---|---|
| 2026-07 | ¥7,411 |
| 2026-06 | ¥7,593 |
| 2026-05 | ¥7,559 |
| 2026-04 | ¥7,573 |
| 2026-03 | ¥7,520 |
| 2026-02 | ¥7,477 |
| 2026-01 | ¥7,468 |
| 2025-12 | ¥7,480 |
| 2025-11 | ¥7,469 |
| 2025-10 | ¥7,487 |
| 2025-09 | ¥7,454 |
| 2025-08 | ¥7,433 |
Frequently asked questions
- How much does car battery cost in Japan?
- ¥7,549 per piece, as of August 2026 — the unweighted average of 46 surveyed cities in the government's retail price survey.
- Which Japanese city has the cheapest car battery?
- Among the surveyed cities in August 2026, Saitama was cheapest at ¥4,980 and Tottori the most expensive at ¥8,980.
- How much have car battery prices changed in Japan over the past year?
- As of August 2026, +0.9% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have car battery prices changed in Japan over the past five years?
- +11.4% compared with the same month five years earlier. The index now reads 111.6.
- When were car battery prices in Japan at their highest?
- The series peaked at 119.0 in April 2024. The latest reading is -6.2% against that peak.
- What is the difference between the index and the yen price?
- This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).