I have had this mod now for over 2 weeks. Works great and is a complete steal at 39.99. If you want variable wattage that works well @ a great price - get the Vamo.
The ego APV is a vast improvement in cost and design over its predecessors. It offers both variable voltage and variable wattage modes, and can increase power by .1 volts or .5 watts. This device can stably operate between 3.0-6.0 volts or 3.0-15.0 watts.
1.To turn the device on or off press the big button 5 times in 2 seconds.
2.To switch between the VV and VW mode press and hold both mini buttons at the same time.
3.Use the left and right mini buttons to increase and decrease the voltage or wattage.
4.To check the remaining battery voltage press and hold the left mini button for 5 seconds.
5.To check the your devices resistance (ohms) press and hold the right mini button for 5 seconds.
6.This device will work with one 18350, two 18350, or one 18650 lithium ion battery. Both the AW and Unprotected batteries on our site work well in this device. We have not done extensive testing with the 18650 batteries. The Panasonic CGR18650CH will work, and we will add more brands as we confirm they work. We suggest using 18350 batteries off of our site.
7. To switch between AVG and RMS mode press and hold the left or right mini button for ten seconds. It will display NO1 when it is in AVG mode and NO2 when it is in RMS mode.
This device has the following protective features.
1.When you press the big button for 10 seconds or more the device will shut off.
When using a single battery and the voltage drops below 3.2 volts the screen will display "LO". Please recharge your battery before continuing to use it.
2.When using two batteries and the voltage drops below 6.4 volts the screen will display "LO". Please recharge your batteries before continuing to use them.
3.When you use an atomizer at 1.2ohm or less the screen will display a "LO" ohms warning. Please use a higher resistance atomizer to prevent damaging your device.
4.When you are using an atomizer with a short the screen will display "LO v". Please change your atomizer to prevent damaging your device.
5.The device will not work if you put the batteries in incorrectly. Please remove and replace the batteries with the positive end towards the top of the device.
Here are some demos and reviews you can look at before buying it.