Ok so I have the new GP Paps V2.1, brass contacts in 18350. I'm using aw 18350 700mAh 3.7v battery. Now, ever since I got my iHybrid synthesis rba, if I hold the button on the Paps for more than 5,6,7 seconds or so the button starts to heat up. Not to mention the vapor production sucks, compared to what I know it should be. And also, if i take off the synth, put tge 510 connector cap back on the paps, and just put a regular nova tank on, it feels noticeably weaker than when i first started using it. (**Note. batteries are fully charged when this is happening.) My guess is that the battery has shorted out but I'm not 100% sure. Any suggestions?