Bat guano: when to use it and how? need help

hey im currently 4 weeks into veg on some ladies...i was wondering what is the best way for bat guano to be use and when the best time is to use it? thanks ahead.

I usually just make a Bat Tea and use that along with my watering.

I have seen however that not all bat shit is created equal. Make sure you get your guano from a big company. I once bought some from a no name company and found out that most of it was just "dirt" and it cost me alot of time and money....

ok how would i go about making the tea