EV batteries with a capacity reduced to 70% can save you millions of yen per year on electricity bills.

Have you ever seen the ``maximum battery capacity'' of a smartphone? After using it for 2 to 3 years, it drops to around 80%, which makes it a little sad. However, it seems that such a "deteriorated" battery will be able to find a wonderful "second workplace". I graduated with 70%, but 70% is with a smartphone...