It takes a while to learn these things. I did stuff like that all the time with my 901.
I am having a million problems with batteries. I had 2 from a newer supplier and they died in the first 2 weeks, he replaced and with 4 and 3 are already dead. My regular supplier had some good stock. Some of my batteries have lasted 7 weeks, some died right away.
I am giving up..sorta..I am getting a Nicostick! I will keep batteries for hubby, he doesn't vape like I do..one charge every 2 days. Whereas I go through 4 batts a day.
I do stand them up in a bowl at night..wipe the ends with alcohol and try to weed out any defective atty's..only 3 of those in 8 weeks!
toilet paper to clean the hole in the batteries once in a while. Just twist it real thin and stick it the hole on the battery a. Helps get the juice out and keep holes open. I soak my atomizer in Everclear, keeps it SPOTLESS 39 days..still on the first atomizer. I bought 8 LOL