in one day? i just dinged 90 today and i would know how much token i could get(know if its possible to have 90, but i dont think so) yeah i have the double reputation gained, but i just think its not possible(i do math and finally happened with a possiblity of 80-82 charms). ty for this!
i know all that, wanted just know if there is a limit of lesser charm with pet battle
Oh, I don't believe there's a limit. So if lesser charms are all you're after, pet battles might be the way to go. If you got a few rare level 25 pets, you can steamroll random wild pets. I've seen posts by people on the official forums of having thousands of lesser charms from pet battles and nothing to spend them on besides the Mogu turn in each week.
I haven't found an upper limit yet. I don't want to do dailies with one of my alts, and I just send her out to level pets while I wait for LFR queues. It's worked fairly well for getting her weekly set of charms so far.
I've gotten upwards of 25 lesser charms just from flying around killing pets doing the Beasts of Fable daily quest, but it's no guarantee. If you have a team of 25s, I suggest you find a spot near a stable master with a lot of wild pets and grind that way.
I've gotten as few as 2 and as many as 6 charms from a single pet battle.