A friend gave me a smok al85 and I’m having trouble. I’ve searched and haven’t been able to find an answer. The battery will be completely charged but after just a few puffs it will say either low battery or check battery and won’t work. I bought a new battery and it didn’t help. When I turn it on the battery icon immediately drains but when I plug it in it will show above 90% battery. Sometimes the icon will drain then go back up and down, etc. The tank and battery cover also get a little hot during use. She didn’t give me a charger so I’ve been using a phone charger. I was hoping to use this to quit smoking but it’s not going to help if it doesn’t work. Any help would be greatly appreciated.