Aspire K4 Quick Start Kit

I have absolutely fallen in love with my Aspire k4 !! No leaking even when upside in my purse  (not intentionally lol) I love the design, from the battery life to the amazing taste from the Cleito Coils!!! I've shown to my vaping friends and all want and have ordered their own! A Beast disguised as a rock star!

I usually vape at less than 20 watts with an adjustable temperature, so using the K4 definitely took some getting used to, but it really is a fantastic system. If you love big vapor clouds, this one's for you. It's taller than the eleaf Pico I've been using, but it fits nicely in one's hand and it is well built. I haven't tested the full duration of the battery, which is in itself a beautiful thing, since I use it all day without draining it and plug it in at night. The one thing I discovered after purchasing the k4 is that it is designed specifically for a 0.27 ohm coil. I have read several places that it doesn't work as well with the 0.4 ohm coil (which is what I normally use). If you read this Aspire forum page, it says use only 0.27 ohm coils: http://forums.aspirecig.com/discussion/27750/aspire-new-product-release-aspire-k4-quick-start-kit
One person's answer for why the 0.4 ohm coil doesn't work as well (i.e. it works, but flavor and performance aren't as good):
"Power = Voltage squared divided by resistance (P = E^2 / R or E = sqrt(P * R))
The Cleito 0.4Ω coil is designed for 4 - 4.9 volt sources
The K4 coil is designed for 3.3 to 3.9 volt sources

The K4 battery is not adjustable, and is probably a lithium ion cell with protective and charging circuitry to yield the proper voltage for the the K4 coil. This voltage is too low for the (other) Cleito coils."
And:
"...  batteries have an internal resistance. K4 current with a fully charged battery is roughly 15A. A 0.03Ω internal resistance would drop the voltage to the coil by 0.45V to 3.75V. With the 0.4Ω Cleito coil the voltage drop would be 0.3V, for 3.9V at the coil for a fully charged battery. With the Cleito coil you start vaping below the coil's minimum voltage requirement, thus the vape quality would be poor."

I still think that it is a good purchase, despite the inability to adjust the wattage/voltage of the battery, but I think it's important to know that you'll need 0.27 ohm coils for the k4. Vape Shop does not currently carry this newer coil yet, so just something to consider.
I hope this is helpful.

Excellent vape pen

I started out with Aspire, then tried a few other brands and none of the others measure up.

I appriciate the price of this product..the Aspire K4 has the power to give a great throat hit with satisfaction !! I love how the shipping was fast..very happy all around

I love my new Aspire K4 !!! I have been using a week and am very pleased with my purchase. I will most definitely be a customer for life. I live on the Eastern Shore of MD and shipping was rather fast. I thank you for providing this great product at such an incredible price!!!

Everything  I expected. Very happy I made this choice

product does not work. had it for a week. want a refund.

AWESOME PRODUCT, FAST DELIVERY, GREAT PRICE!!! You guys rock!!!!

This device is excellent. I haven't tried many but when I tried a friend's I knew this was the device for me and I just love it. It's smooth with good clouds. If you want a no fuss vape  this is it. Buy it!! My only gripe was the two week shipping but that solely lies on the USPS.