I bought the njoy 510 starter kit long before I found this forum. I've had it about 6 weeks and find myself fiddling with it constantly to get the results I want. I even have to keep fiddling with the charger to get it to keep charging. When I found the forum I was looking for tips to make this work better. Little did I know! After reading threads on here I ordered some new equipment which will hopefully arrive soon. This morning one of my batteries appears to be dead. It lights up orange when I put it on the charger while the charger stays green. It lights up okay when I try to vape but no vapor;-( Tried it with various carts and atts that work on my other battery too.