The second battery is actually a 650 mAh disposable battery. The pen also includes two differing types of cartridges. Selina G. Purple Paradox For the final three yrs This can be the only flavor of juice which i use. I hardly ever get tired of it and don't want https://kylerekquu.fliplife-wiki.com/3422426/detailed_notes_on_cookies_disposable_vape_pen_1g