Hello there fellow vapers! I am new to vaping and the 75w eleaf nano istick picco is my first upgrade from using a vape pen. The Picco requires one 18650 high amp battery. I ordered a Samsung INR 18650 25R 2500mAH flat top battery. Did I make a mistake? Will this battery work? If I made a mistake, what battery brand/type should I get and who offers it at a decent price? Any help is appreciated. Thank you.