なおさんは英語いけるやん、笑! Battery weight is 18g Neo Champ or 23g alkaline.
ドよくありがと!(^∇^)
English is difficultヽ(;▽;)ノ
I do not use it in Japan. All is a thing by the Tamiya formula competition.
なお question for you: weight of JP batteries in mini4 scene? alkaline and rechargeable? curious!
It is a thing not to use in Japan. Very heavy.