Because no one wants a vape that dies mid-puff
We’ve all been there — you go to take a puff, and... nothing. No light, no draw, just silence. If your vape has been acting up lately — slower charging, weaker hits, or random cut-offs — it might not be your coil or your e-liquid.
It might be your battery.
Just like your phone or laptop, vape batteries don’t last forever. Whether you’re using a built-in pod device or an external 18650 mod, eventually that little power source will wear out. But how do you know when it’s time to replace it?
Let’s break down the signs, the risks, and how to stay safe and powered up.
🔋 What Type of Battery Does Your Vape Use?
First up — not all batteries are the same. Here’s a quick recap:
- Internal batteries – Built into the device (e.g. Caliburn, XROS, Drag S). You can’t replace them yourself — when they go, the device is done.
- External batteries – Usually 18650 or 21700 cells used in mods. These can be removed and swapped out.
Knowing which one you’ve got helps you figure out your options when it starts playing up.
⚠️ Signs Your Vape Battery Might Be on Its Last Legs
1. It Doesn’t Hold a Charge
If your vape used to last all day and now barely makes it through lunchtime, that’s a sign of degradation. All lithium-ion batteries lose capacity over time.
2. Charging Takes Ages
A healthy battery should reach full charge fairly quickly (usually under 90 mins on USB-C). If it’s crawling along or never gets past 80%, something’s off.
3. It’s Getting Too Hot
A bit of warmth during use is normal, but excessive heat during charging or vaping is a red flag. Heat = battery stress.
Had a customer once who said their vape was getting “hot enough to fry bacon.” We replaced it immediately. Please don’t vape bacon.
4. Performance is Weak
If your puffs feel flat, like your vape’s struggling to power the coil properly — that could be a dying battery. Especially if it used to hit strong and smooth.
5. Visible Damage or Swelling
This applies to external batteries. If the wrap is torn, there’s corrosion, or — worst of all — the battery looks swollen? Stop using it. Immediately. It’s unsafe.
🧠 When to Replace It (By Type)
For Internal Battery Devices:
These usually last 6 months to 1.5 years, depending on how heavily you use them. If you’re charging it more than twice a day or it’s cutting out mid-use, it’s probably time to replace the whole device.
We always recommend having a backup pod device, especially if yours is getting on a bit. It’s a cheap insurance policy against vape-less mornings.
For External Batteries:
You can replace just the battery. A good 18650 or 21700 should last 300–500 charge cycles, or roughly a year for most users. Signs it’s ready to retire:
- It discharges faster than normal
- Voltage drops quickly during use
- It’s over 18 months old and showing age
Always store and transport batteries safely — and never carry loose batteries in your pocket or bag.
🧰 Tips to Extend Your Battery’s Life
Want to make your vape battery go the distance? Try this:
- Avoid overcharging – unplug it once it’s full
- Don’t drain to 0% every time — aim for recharging at 20–30%
- Keep it cool – heat degrades lithium cells fast
- Use the right charger – don’t use dodgy cables or wall plugs
- Buy reputable brands – trust your shop, not sketchy listings
♻️ What to Do With Dead Batteries
Please don’t chuck old vape batteries in the bin.
Most vape shops offer battery recycling. They’ll take your dead batteries or old devices and dispose of them safely, so they don’t end up in landfill — or worse, leaking chemicals.
Parting Puffs
Your battery is the heart of your vape — and when it starts going, you’ll definitely feel it. Don’t wait for it to completely die on you in the middle of the day (or worse, mid-coffee break).
Whether you’re ready to replace the whole device or just the battery itself, we’re here to help you choose something safe, powerful, and long-lasting.
Pop in for a chat — we’re always happy to take a look and give honest advice.
Disclaimer: Always use batteries and chargers that are compatible with your vape device. Never use visibly damaged or swollen batteries. Store vape gear safely and recycle old components responsibly.