The claim
指輪型ライトの接触不良、アルミホイルをボタン電池にはさむと解決
Original review summary
The review examined a viral suggestion to fold aluminum foil between the two button batteries in the ring light to keep it lit. The manufacturer warned that this can short-circuit the batteries and cause heat or fire, and said users should not do it.[S1]
Additional context
The review notes that the manufacturer was aware of reports that the light turned off easily and was responding to inquiries. [S1]
The review distinguishes this product from an emergency-only battery substitute method described by the Tokyo Metropolitan Police Department, which it says should not be used routinely. [S1]
Research date:
Sources and attribution
- [S1] 日本ファクトチェックセンター original review
Original review · Retrieved October 16, 2026