Quite a few issues, with mediocre quality materials, made in China and not made in Japan (as stated in the product photos), short operating time (< 30’)! Generally, misleading product description!

The original battery didn't last even 10 minutes of shaving, but I had it for years. However, I replaced it with this one and now it lasts at least half an hour continuously!!!
Be careful when replacing it, the machine has a bunch of springs!!!