5 Best Batteries for Smok Alien in 2021 – Reviews & Top Picks

Critically acclaimed by a plethora of vaping aficionados, the Smok Alien can be best described as a pocket-sized powerhouse, making it a portable device capable of producing potent hits on the regular. Featuring a distinct appearance largely owing to its carbon fiber and diagonal inlays, the Smok Alien truly checks all the right boxes.

However, to get the mod functioning at an optimum level, you must back the mod with suitable batteries. Failure to do so can result in an inconsistent performance. 

Now, that would be a real drag, wouldn’t it? 

What batteries go into the Smok Alien?

The Smok Alien is a regulated mod that accommodates two 18650 batteries. The 18650 battery derives its name from its measurement; 18 denotes its diameter (18 millimeters) while 650 indicates its length. 

Despite the availability of larger batteries, 18650 batteries are still commonly used by most vaping devices because of their efficiency, availability, and reliability. In addition to mods, 18650 batteries are also frequently used in power tools, electronic vehicles, LED flashlights, and laptops.  

However, like all excellent innovations, 18650 batteries are also frequently counterfeited. So, you need to be extra vigilant when purchasing 18650 batteries. 

When shopping for 18650 batteries for your Smok Alien, look for a 20-30A battery that boasts a rating of 2500-3000mAh. Batteries with such a range usually provide the most potent hits and have the most charge life. 

Is it safer to choose a recognized brand? 

Recognized brands are popular for a reason. Over the years, they have managed to establish strong goodwill because of their excellent services and production of high-quality products.

For 18650 batteries, there are specifically three household brands that stand head and shoulders above their competitors. 

The trio of LG, Sony, and Samsung are the original manufacturers of the 18650 batteries and they continue to lead the pack to this day. These brands present their battery stats accurately; they don’t fabricate the stats to make their batteries appear more impressive. 

Many off-brands counterfeit 18650 batteries and falsely list them as 40A. If you see that, avoid purchasing them as the highest rating of 18650 batteries is currently only 30A. 

At A Glance: Our Top Picks for Best Batteries for Smok Alien

If you’re in a hurry, you can jump straight into our top picks (these are the batteries for Smok Alien that most people buy).

  • Sony VTC6 Top Pick
  • Sony VTC5A Runner-up
  • LG HG2 Runner-up

Top 5 Best Batteries for Smok Alien – Our Reviews:

Ideally speaking, you’d want to only go for 18650 batteries manufactured by the aforementioned company brands. Here are some of the best battery options.

1. Sony VTC6

Sony’s VTC6 possesses an outstanding 3000mAh rating. 

Highly regarded as the ideal 18650 battery for mouth-to-lung vaping, the VTC6 is an excellent choice for the Smok Alien as it is capable of maintaining a low temperature for an extended period despite being discharged at high amperages. 


  • Excellent battery capacity
  • High current output
  • Reliable performance


  • None identified

2. Sony VTC5A

The VTC5A is another Sony 18650 battery you can trust to get the Smok Alien operating at max capacity. On full charge, the 25 amp battery is capable of lasting throughout the day. 

The VTC5A is a phenomenal choice for a regulated mod like the Smok Alien. 


  • Great for high-drain vaping
  • Specifically outstanding on regulated mods
  • Does well even with low resistance builds


  • None identified

3. LG HG2

Let’s take a break from Sony and see what LG has to offer. Its renowned 18650 flagship battery, the LG H2, is quite the offering. 

The HG2 is a high-capacity battery that works like a charm on regulated mods. For those looking to vape up to 60 watts per cell, the LG H2 is your best friend. 

Like all great batteries, the LG HG2 also has long battery life. 


  • Particularly good for dual mods
  • Swift charging
  • Large battery capacity


  • The wrap tears too easily for my liking

4. Samsung 25R

The Samsung 25R has loyal legions of admirers from all over. It is, arguably, the most trusted 18650 battery in the world. 

This battery is available for purchase in two different editions with the green wrap 25R having a longer life cycle than the 25R draped in blue. What makes the 25R so popular among vapers is its accessibility, affordable pricing, and excellent output. 


  • Great for high-wattage vaping devices
  • Durable wrapping
  • Outstanding life cycle


  • Takes a long time to charge

5. Samsung 30Q

Although the 30Q features a 3000mAh rating, it has a continuous discharge of only 15 amps. Therefore, this battery is particularly suitable for those who prefer vaping at low wattages. 

On the bright side, a couple of 30 Qs on this Smok mod will have the mod last an eternity. 

The 30Q can be best described as a lower output battery that offers fantastic value for money. Go for the Samsung 30Q if you are on a tight budget. 


  • Affordable pricing
  • Ideal for vapers who like vaping at low wattages
  • Long charge 


  • Underwhelming continuous discharge rating


To be honest, there is little to separate the batteries in terms of performance, lifespan, and price. So, you can choose any of the batteries listed above; they are all excellent battery choices for the Smok Alien. 

However, to ease your mind and help you make a decision, I will try to be more specific with my recommendations. 

To maximize range during regular vaping sessions, opt for the Samsung 25R. For high drain vaping, select the Sony VTC5A.