:)
Charge is only a TM in Scarlet and Violet, where it is TM173. It is craftable at any TM Machine with 400 LP and 3 Pichu Fur.
TM173 (Bulbapedia)
Bulbapedia says a copy can be found in Mossui Town, but it doesn't provide a specific location. You're likely to have the requisite materials anyways --- the Pichu line is common.
There is none.
BTW, in future, tag game in use also, every item has different location in different games. Exp. Share is on different place on Emerald than White, etc.
Pokemon only learn charge by level or breeding
