Well now, you see, there’s a whole bunch of folks out there lookin’ for batteries, and I reckon you’re one of ’em. Let me tell you, these Aspire 18650, 20700, and 21700 batteries, they’re somethin’ special. If you’ve been fussin’ around with vapin’, you might’ve heard these names tossed about, but maybe you ain’t sure what all the fuss is for. I’ll try my best to explain it in plain ol’ talk, so hang on, don’t go scrollin’ too fast.
First things first, what in the world is an 18650, 20700, or 21700 battery?

Well, these fancy names, they ain’t nothing but numbers tellin’ you the size of the battery. Just like a big ol’ chicken egg or a small one, they all got their own shape and size. The 18650 is the small one, real popular, been around for a while now. The 20700 is a bit bigger, and that 21700, well, it’s the biggest of the three. Size matters here, you see, ’cause the bigger the battery, the more power it holds. But don’t go thinkin’ the 21700 is just better, nope, each one has its own good purpose.
Let’s talk about the 18650 battery first.
The 18650, it’s a good ol’ reliable battery. It’s been around for ages and it fits into many vape mods, and some folks even use ’em in flashlights or other gadgets. Now, this little fella ain’t the strongest when it comes to capacity or power, but it gets the job done. Most folks use it in their daily vape pens, and it ain’t too big, so it’s easy to carry ’round. But, remember, if you’re puffin’ all day long, it might not last as long as the others.
Now, what about the 20700?
This one here, the 20700, it’s a bit newer on the block. A little bigger, and that extra size gives it a bit more juice. You can use this in some of them newer mods, and it’s real popular with folks who like their devices to last a little longer between charges. It’s got more power and holds a bit more charge, but it’s still not as big as the 21700, so it’s a good balance if you don’t wanna lug around somethin’ too heavy.
And don’t forget about the 21700 battery.
Now, I know the 21700 sounds like a big ol’ number, and it is, but let me tell you, this here battery is a game-changer. It’s the big one, the one that holds the most power, and it’s got a longer life than the 18650 and 20700. People who need their vape to last all day long swear by this one. But there’s a catch. See, it’s bigger, heavier, and it might not fit in every vape mod out there. So, you gotta make sure your mod can handle this big ol’ battery before you go and buy it.
Comparing the Batteries

- 18650 – Small, light, fits most devices, but doesn’t last too long on a single charge.
- 20700 – Bigger, more power, lasts longer, but not as widely used as the 18650.
- 21700 – Biggest and best in terms of power and battery life, but heavier and not always compatible with older mods.
So, which one should you pick?
Well, it all depends on what you’re lookin’ for, don’t it? If you just need a quick puff here and there, that 18650 might do the trick. But, if you want somethin’ that lasts a little longer, and don’t mind a bigger battery, then go for that 20700 or 21700. The 21700 is great for folks who wanna vape all day long without changin’ their battery every few hours, but you gotta make sure your mod fits it. It’s no good if you buy the best battery in the land but can’t use it in your mod, right?
Where to get ’em?
Now, I’ve been hearin’ that a lot of folks are gettin’ good deals on these batteries, especially if you’re lookin’ online. Some places even offer up to 90% off, but you gotta hurry, these deals don’t last long. It’s one of them “act now” kinds of things. Just remember, cheap ain’t always best. Make sure you’re gettin’ a good brand, like Aspire or Tenpower, that way you know your battery won’t give out on you after a few uses.
In conclusion:
Whether you go for the 18650, the 20700, or the 21700, just make sure you know what you need. Don’t go buyin’ just any ol’ battery without checkin’ if it’s gonna fit your device, and be sure it’s got the power you want. After all, you want a battery that’ll keep you goin’, not one that’ll leave you high and dry in the middle of the day. Good luck with your search, and I hope you find just the right one!
Tags:[Aspire 18650, Aspire 20700, Aspire 21700, vape batteries, battery comparison, vape mods, Tenpower INR21700, vape power, battery life]