Innokin Coolfire Z50 with Zlide Tank

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Innokin Coolfire Z50 with Zlide Tank

Innokin has bundled its latest 2100mAh built-in battery Coolfire Z50 mod with a 24mm Zlide tank, which together makes a great team and offers MTL vapers a fantastic draw. The Zlide tank has been rated “one of the best MTL tanks on the market”.

Internal Battery

Direct To Lung Vaping

STD $8.95 EXPRESS$10.95

Frequently bought together

Total price: $0.00

What's in the box:

- 1 x Cool Fire Z50 battery

- 1 x Zlide tank (4ml)

- 1 x 1.2ohm Z Zenith coil (Pre-installed)

- 1 x 0.8ohm Z Zenith coil (Spare)

- 1 x Type C USB charger cable

- User manual



- Dimensions: 115mm x 33mm x 26 mm

- 4ml tank capacity

- 2100mAh internal battery

- Output: 6-50W

- Compatible with all Z (Zenith) coils



The Coolfire Z50 is the 7th Coolfire model by Innokin, a brand line popular among beginners and Mouth To Lung vapers. The previous models are Coolfire 1, Innokin Coolfire 2 hand grenade, Coolfire 4, Coolfire 4+, Coolfire 4 TC and Coolfire Mini. The new Coolfire Z50 has been created together with YouTube reviewers Phil Busardo and Dimitris Agrafioti.

The Z50 is made of quality zinc alloy which makes it highly durable. It also has a stainless steel 510 connector that can connect to any tank or RDA of 24mm.

“It’s a good quality build,”; “small, compact, portable, pocket-friendly”; “easy and comfortable to use,” are some descriptions of its build by fans.

Filling the Zlide Tank

The Innokin Zlide MTL tank uses the same coils as the Zenith, the Zlide tank can take 4ml of e-liquid so all day vaping is certainly possible.

The top is slide-open which also functions as child protection. One needs to remove the mouthpiece and then slide the top to fill through the porthole. After vape juice is added, slide the top back and replace the mouthpiece.  

It is recommended to use 50/50 or 70/30 juices.  The tank allows for adjustable airflow to restrict airflow for a tighter draw if required. Vapers are reminded to wait at least 5 minutes to saturate the coil before vaping.

Changing Coils

Two coils come with the kit for MTL vaping - first there is a 0.8ohm Kanthal, 15-18W, and a pre-installed 1.2ohm Kanthal, 10-14W.

The 1.2ohm coil provides a fairly tight MTL draw even with the airflow wide open. The vapour is good and the taste is strong.

The 0.8ohm produces a lighter MTL, almost like a restrictive DTL draw. The draw can be tightened further by closing the hole halfway.

The Zlide tank also works with compatible Innokin Z coils that have a simple press-fit installation. Coils needed to be primed by dropping about 5 drops of juice onto the wick. 

To change coils, twist the bottom of the tank off and the airflow ring, take out the old coil, insert a new coil into the tank, twist the tank and ring back into place and switch on.


The 2100mAh battery can last a day before charging and provides up to 50W output. Charge the mod before vaping with the USB cable supplied.


A 0.69 inch OLED screen has all the info needed for tailor-made vaping experience. The bright screen displays the wattage output, voltage, resistance and battery life.

Put the device on and then press the fire button three times. One can change the wattage from 6-50W and the voltage to suit by pressing the fire button and the up or down button. Holding the buttons further flips the screen. Then by pressing buttons together further one can see the puff count

On the side of the screen is the USB port.

Vaping experience

The vape experience as a whole is satisfying and at 50 W vapers say “vapour and flavours are good and tasty and make big clouds”.


  • 115mm x 33mm x 24mm (Height includes tank)
  • Zinc alloy, stainless steel, polycarbonate



What Is Special About A Coolfire System?

It is one of the more popular choices for beginners as well as those looking for a high-performing mouth to long vape. The Innokin Coolfire Z50 mod comes with a durable 2100mAh battery wattage output, giving you roughly 50 battery wattage. Since this is the latest battery in the range, it provides a good amount of vapour and flavour with each pull.

The Coolfire System also uses the renowned Zlide tanks, which have been described by many consumers as some of the best MTL tanks on the market.

Finally, the Coolfire system also comes with a durable chassis thanks to the zinc-alloy building material. And there is also a lot of compatibility for a variety of MTL coils, including the 0.8-ohm Kanthal with 15-18w, and the pre-installed 1.2-ohm z coils.

In addition to the pre-installed features, the overall installation of new coils is fairly simple with the press fit installation feature. Simply twist the bottom of the tank and remove the old coil. Next, you can insert the new coil and then put the airflow ring and tank back in its place.

Before changing coils, always make sure they are primed for optimal performance and increased longevity. You can prime your coil by adding five drops of your chosen vape juice to the wick before using it.

What Is The Best Mouth To Lung Vape?

Most consumers looking for a good mouth to lung vape will look at the Innokin brand. Considering the wide variety of Innokin Zlide tank features, wide output range, and high adjustability of the average starter kit, the Innokin Coolfire is a suitable choice for beginners as well as experienced vape users.

Is Sub-Ohm Vaping Safe?

Sub-ohming is basically a term that refers to a vaping tank with a resistance of less than one ohm. As you may know already, the lower the resistance, the larger the vapour amount and the more prolific the vapour flavour.

Generally speaking, sub-ohming is safe. However, beginners should stick to their regulated box mods if they are not familiar with the ins and outs of vaping mechanics yet.

More experienced vapers can look at mechanical mods for sub-ohming, but keep in mind that these mechanical mods do not have circuits. In other words, mechanical mods do not have wattage or voltage that can be adjusted, making their safe use a little more complicated. If you do decide to use a mechanical mod, please consider how you build your coil and ensure the air vents work appropriately to avoid a battery hazard. If you are insecure with mechanical mods, stick to the regulated box mods to ensure safe vaping.

How Do You Change Innokin To Watts?

If you want to switch to watts on your Coolfire, simply hold in the power button and the plus button. To switch back to voltage mode, hold in the power button and the minus button.

On the Coolfire, there is a 6-50w range, opposed to the Coolfire 4 which went up to 40W. The wattage jumps in increments of 0.5W, allowing for more control and precision.