65 watt charging on a 3.7volt 4000mah lithium<br><br>14.8 watt battery <br>65 watt charger<br>Seems like 50 watts is going to heat and less then 14 into the battery seems inefficient.<br><br>And those watts went somewhere and unless this charging circuit makes sound with the extra unused watts but I would think it’s likely generated into heat due to circuit inefficiencies. <br><br>Hey if your phone blows up remember<br>    Fast charging is awesome!!!!!!!