How to make battery 3v to 12v

How to make battery 3 v to 12v.
3v to 4.
3v to 12v converter.
3v to 12v boss converter

[@lnnovativeideas3723]

Thanks you for all the help

[@daran104]

Good

[@newim7436]

goog

[@Bldc7]

Amp Kitna hai

[@armsopen4u]

Battery banana to har koi sikha raha hai youtube per..,isako charge kaise kerna hai ye koi nahin bata raha hai....charge nahin ker sakte to video banana bekar ka timepass hai

[@lnnovativeideas3723]

Yes

[@vincenzo7063]

13 volt 2 amp ka charge buy kar lo 200 rs ka ayega use se charge karna

[@morlun3924]

Good

[@lnnovativeideas3723]

Thanks you