This is what you need, will work on any 510 threaded mod
This adapter allows you to use [eGo] atomizers with a [Joye 510] threaded "MOD" devices (see image). It is also threaded allowing the use of eGo cone covers.
This adapter is needed in order to use a MOD/APV such as the VAMO with Kanger Clearomizers (T3, MT3 & EVOD) http://www.myvaporstore.com/510-to-eGo-Adapter-p/510-ego.htm
I have moved on past this style- but really liked the 1st 2 Innokin 3.0- much better than the regular standard ego battery! I have ordered these from here in the past and they are great- best pricing for these too- I also like the iStick 30 and that comes with an adapter for Ego(your tank)! You should get a couple of batteries- so one can charge while vaping the other! Nice to get the whole kit and have extra tanks! Make sure you order coils for your K1 tank, since you will be switching them out every couple of weeks!
There are many videos on You Tube- type in the search Aspire k1 or what ever you are wanting to know more about!
I was new once and hope that these links help you- always have back ups- good luck!