YOU SAID:

my batteries have gone bad off to the store i go

INTO JAPANESE

私の電池は店に悪くなってしまった

BACK INTO ENGLISH

My batteries got bad in the store

INTO JAPANESE

私の電池が店で悪くなった

BACK INTO ENGLISH

My battery got worse at the store

INTO JAPANESE

私のバッテリーが店で悪化した

BACK INTO ENGLISH

My battery got worse in the store

INTO JAPANESE

私のバッテリーが店で悪化した

BACK INTO ENGLISH

My battery got worse in the store