tc60w

hi all new to this forum i recently acquired a griffin rta. Sold to me by the shop. Saying it would be an easy build and really enjoyable. i have only got it to work really good once. After letting it rest for a few hrs with the juice holes closed. Tried again and horrible hurt on the top of...

Eleaf TC60W uses 18650 battery. I have 16650 batteries also which work and fit more comfortably in the device. Is this safe? Is it only the size that is different and so is ok if it fits well with the device or are there other factors that make it unsafe to use an alternative battery? The 16650...