March 15, 2023, Tokyo, Japan - Japanese automaker Honda Motor displays the concept model of a charger and discharger using a detachable battery "Honda Mobile Power Pack e:" which enables to use 100-voltage electric appliances at the International Smart Grid Expo in Tokyo on Wednesday, March 15, 2023. Honda displayed various kind of appliances with the battery pack at the exhibition. (photo by Yoshio Tsunoda/AFLO)