Posting this here as I don't have access to anywhere else, but need some help. Recently moved to using KR808's from V4L. I purchased the XL batteries along with a USB charger. I was previously an eGo user so not completely new to vaping. I prefer the vape these give, but am finding that they take forever to charge. They are taking around 5-6 hours to charge on the USB charger, but only vape for about 4. Anyone with experience know if the wall charger would work faster?