Reviews. Resources. Specifications.

KSD Kmax

With Variable Voltage and Variable Wattage, the KSD Kmax is a powerful and well-built advanced personal vaporizer. The OLED display is quite unique – as you can see from the image on the right, the area that shows in different colors is actually a translucent color. You can see the display when you activate it, at any other time the color blends into what you see at the right.

I honestly could not decide between all of these color choices. Since I prefer a solid and more "stealth" look, I ordered the Chrome body and Chrome display. I also ordered a second unit with the Black body and Black display.

The bottom portion of the KSD Kmax is telescoping. That is it will accommodate a variety of lithium ion batteries: 18350, 18500 and 18650. I tend to use mine with 18350 batteries which means the Kmax is at its smallest possible size. 

The first unit to get delivered is the Chrome body with Chrome display. Combined with most of the clearomizers I have, it is a quite a view to see an entirely chrome finished unit with only the tank's glass display showing any sign of color (the eLiquid).

The fit and finish of the Kmax is quite good. The threads are smooth and the entire unit can be disassembled for cleaning purposes. There is a bottom threaded cap, an outer tube that threads up/down to accommodate the various length batteries, an inner tube that threads on/off for cleaning purposes, and the top beauty ring that can be removed to clean the 510/eGo threaded portion. The beauty ring has a slight bevel and looks great with clearomizers from 14 mm up to 22-23 mm. The beauty ring is also flush with the height of the 510/eGo connector and also has five vent holes in case your clearomizer is the wider diameter and sits flush to the top of the beauty ring. No dead air draws here.

The bottom cap has four vent holes inside, and five vent holes outside. There are also vent "slots" in the inner tube that are only exposed when using batteries longer than the 18350. The outer tube is threaded the entire length of the tube. I used 18350 flat top batteries in the Kmax I received and still had a bit of space left that I could thread even further – makes me wonder if the 18340 batteries might fit as well (but, I don't have any to test that out).

The KSD Kmax is a one button operation. You click the button in rapid succession from three to seven times to select what you want to do. Once you make that selection, wait two seconds and let the screen turn off. Press again and the function you left at is what you are working with. And, an impressive list of functions and features:

  • Variable Voltage from 3.0 volts to 6.0 volts in 0.1 increments
  • Variable Wattage from 3.0 watts to 15 watts in 0.5 increments
  • Circuitry protection from over powered batteries, reverse battery protection, and overload protection (auto shut off if actuator is pressed longer than 10 seconds)
  • Puff counter / indicator
  • Menu 1 is for adjusting voltage or wattage upwards
  • Menu 2 is for adjusting voltage or wattage downwards
  • Menu 3 is for selecting the display state (on or off)
  • Menu 4 is for displaying the remaining battery voltage (optional, can be changed from Menu 5)
  • Menu 5 is for selecting which feature to display in Menu 4 (options are: output voltage, coil resistance, remaining battery voltage)
  • Menu 6 is for selecting the display state when vaping
  • Menu 7 is for selecting which feature to adjust from Menu 1 (voltage or wattage)

If you are used to a three button menu system, this will take a bit of getting used to – but not much. The options are reasonably labeled and follow the same type of "standard" as other advanced personal vaporizers.

The KSD Kmax is available in two different configurations: 1) the base unit; and 2) as a kit. In kit form, it ships with battery, charger, clearomizer, manual and gift box. As a base unit, it ships in a gift box with user manual. It may well be worth your while to order the kit, the clearomizer that is packaged with this is a Kanger Protank and the battery is included – the kit adds $10 to the total (a pretty decent value). I have enough batteries and tanks though, so I ordered the base unit only.

On receiving this, it took me a whopping 2 minutes to figure out the menu system. Not that difficult at all – just read the instructions, they are reasonably well written.

You need to be aware that this is made from steel or brass (likely brass) and is heavier than it looks. The finish on the one I received so far is chromed on all exterior and interior surfaces. The OLED translucent display also has a chrome finish. The outer tube has a silk screened KSD logo.

The actuator button that you press when vaping is the floating style. It does have a silk screened 'V' and 'W' on the button, and that spins freely. When fully assembled and the battery firmly threaded in place, there is a bit of a loose jiggle when shaking the unit – that comes from the floating button. Everything else is absolutely dead quiet and solid. I like the idea that the unit can be completely disassembled for cleaning. According to the KSD website, the threaded components of the Kmax can be used on other mods (but does not list what those mods are).

The KSD Kmax is available in a variety of color combinations. The key to this is that the body is available in three choices: Chrome, aged Brass, and Black. The display module choices are: Chrome, Red, Yellow, Green, and Black. You can choose from any of these combinations to make a unique package that just calls out to you.

Despite its slightly heavier feel, the Kmax with a clearomizer sits well in the hand. Regardless of the battery you use, the firing button is in the right place. The display (that you can't see until you want to work with the menu system) is positioned immediately above the firing button. The menu reads from the top to bottom, that is you hold the bottom of the unit to the right, the top end to the left, and the display is in the correct orientation. This is more appropriate for someone that is right handed. If you look at the picture at the top right, the displays appears the opposite to my description: that picture is from the KSD website and is not correct based on the unit I was shipped. The display is the opposite to that picture.

Overall lengths and diameters:

  • The diameter of the bottom cap and outer battery tube is 24.2 mm (0.95 in.)
  • The diameter of the inner tube and top cap (at full diameter) is 21.5 mm (0.85 in.)
  • The diameter of the top cap at the top of the bevelled portion is 18.5 mm (0.73 in.) note: I used this with the Innokin iClear 20s and it was an absolute perfect pairing.
  • The height of the Kmax with an 18350 battery is 109 mm (4.29 in.)
  • The height of the Kmax with an 18500 battery is 122 mm (4.8 in.)
  • The height of the Kmax with an 18650 battery is 137 mm (5.39 in.)

In use, this is one powerful advanced personal vaporizer. I tested this with a Innokin iClear 30s with a 50/50 Strawberry Cream eLiquid. I tested it at various voltage settings and various wattage settings. Even at its default settings, the vape experience was great. When I adjusted the wattage above 6.0, the vape was outstanding. At 10 watts, the taste was incredible, the vape cloud amazing, and the throat hit exceptional.

I have a preference for "stealth" devices. The smaller the better. The Kmax is somewhere in the middle. The height of the "head" unit (if you look at the bottom picture at the right, it is the portion from the very top to where the wide part starts) is 55 mm (2.17 in.). While that is high, I can't see how they could have made this any smaller. One note: when you change the battery, the Kmax returns to its default settings – unless you are fairly quick with the change of batteries. Other than that one downside, I recommend the KSD Kmax for its looks, functionality, features, and size.

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