Best Vape Batteries (18650 and 21700) In 2024

With IMR lithium manganese vape batteries, you either get a high capacity or high amperage. However, the newer generation of INR lithium nickel batteries, like the Tenpower INR21700 40TG, can magnificently achieve both.

The Tenpower battery has a ludicrously high capacity of 4000mAh, making it capable of storing more charge than almost any other vape battery. While ordinarily, this would mandate a lower amperage, the good balance of the 35A rating of the Tenpower battery will permit you to spend all day generating massive clouds.

While flat-top 18650 batteries are more common, 21700 batteries are a close second, and many sub-ohm vape kits and e-cigarette vape devices fit them perfectly.

Cheap Cell: Very affordable vape battery 
All-Rounder: Decently capable of both MTL and DTL outputs 
Encased: Arrives in a convenient plastic protective tube 

Vape batteries are advanced units of consumer and industrial electronics, and they rarely cost cheap. But seldom doesn’t mean never because the BAK N18650Cnp batteries are affordable for anyone with an external battery mod.

For budget-friendly vape batteries, the BAK unit is surprisingly capable. Each battery boasts a charge capacity of 2500mAh, larger than some costlier, higher-amperage units available. Speaking of amperage, 20A might not be the biggest in the game, but it’s certainly enough for some reasonable sub-ohm use, to say nothing of comfortable MTL compatibility.

Capacity King: Gigantic 4200mAh capacity 
Surge: Impressive 30A amperage rating 
Cobalt Cutie: An INR battery that combines high mAh and A  

External vape batteries often boast higher charge capacities than vape kits with internal power sources, and few can rival the extraordinary capacity of the Vapcell 4200mAh INR 21700 Battery.

You read that right: 4200mAh, more than double what most external or even internal lithium ion batteries can offer you. With that kind of charge, you’ll be puffing away for hours.

Even better, the lithium nickel materials used result in a 30A amperage rating, meaning that the Vapcell 4200mAh battery can handle extreme sub-ohm outputs. This battery would be ideal for those who wish to use mods with temperature control functions.

High Amps: The 30A rating is perfect for DTL use 
Compatible: 18650 size fists most vape mods

A direct-to-lung vaper utilising a removable battery mod needs some powerful amperage, such as the 30A rating of the Murata VTC4 18650 Battery.

The 2100mAh may not be the highest available, but it’s a standard tradeoff for high amperage in an 18650 battery that can fit into most external battery vape mods. It’s also rapidly restored with the use of a charging cable.

So, if your primary desire is a battery that’s capable of handling constant outputs of vast vapour production, the Murata VCT4 is an excellent choice. 

Top Performer: Boasts very high capacity
Tough Enough: Capable of handling intense sub-ohm use
Amp Archon: Enough amperage for the hardiest outputs

If you’re looking for a vape battery that’s capable of handling frequent stressful power outputs, the Vapcell T30 21700 Battery has enough capacity and amperage to handle even the most intensive RDA/RTA use.

The battery has a capacity of 3000mAh, which, of course, can be doubled if two are used for a dual-battery mod. 6000mAh isn’t likely to run out anytime soon!

Add to that the sky-high 35A amperage rating, and the Vapcell T30 can fire your mod to its absolute maximum without any battery health concerns. 

The only downside is that 21700 is less commonly compatible than 18650.

MTL A: Ideal amperage for MTL power settings 
Brand Identity: Made by one of the world’s best-known electronics manufacturers 
Sizable Charge: 3450mAh can last a very long time 

External lithium-ion batteries were once solely the domain of sub-ohm vapers, but Panasonic’s NCR18650GA Battery has an amperage that is ideally suited to MTL vaping.

It’s nice to see such familiar brands in this list of otherwise niche companies, and Panasonic’s vape battery ability is unique in offering a high 3450mAh capacity and relatively low amperage of 10A. But that low amperage makes the battery ideal for vapers who keep their mods in a 10-20W MTL range.

While dedicated DTL puffers will definitely want a battery with a higher A rating, mouth-to-lung vapers will find this vape battery capable of delivering several days of vapour without needing to be recharged from your USB cable.