Charging Vape Batteries: How to Maximize Life Span
Posted by Courtney McElligott on Jan 29th 2020
You get home after a long day, reach for your vape, and the battery is dead. You could have sworn you charged it last night and you have not touched it all day.
Like any piece of electronics, a vape battery wears down over time. The good news is that how you charge, store, and clean it makes a real difference in how long it lasts. A few small habits will keep your device running stronger for longer.
Here are the charging and care techniques that keep batteries going.
1. Turn it off when you are not vaping
You would not leave the television running in an empty room. Treat your vape the same way.
Even idle, a device that is left on keeps pulling a small amount of power. If you are done for a while, power it off until you reach for it again. On most mods that means five clicks of the fire button. It is the easiest way to stretch a charge.
2. Use it on a regular basis
Lithium-ion cells, like the ones in your phone, prefer to be cycled rather than left to sit. A battery that goes untouched for weeks slowly self-discharges and loses capacity.
If a device is going to sit unused, you do not need to run it down or top it off constantly. Just avoid leaving it in a drawer for months at a time. Regular, normal use keeps the cell in better shape than long stretches of nothing.
3. Do not overcharge it
A lot of people plug electronics in at night and let them charge until morning. It is convenient, but it is not the best habit for battery longevity.
Most modern mods and external chargers have protection circuitry that stops the charge once the cell is full. Even so, leaving a battery sitting on the charger long after it is done, or charging unattended overnight, is worth avoiding. Charge it while you are home and awake, then unplug it once it reads full.
4. Do not run the battery all the way down
Draining a lithium-ion cell to empty puts extra strain on it every time you recharge from zero. Topping up before it gets that low is easier on the battery.
A practical habit is to plug in around the halfway point rather than waiting for the device to die. The charge cycle is shorter, the cell stays in a better state of charge, and you spend less time waiting to vape again.
5. Keep the battery and connections clean
Batteries take a beating during a normal day. They ride around in pockets and bags, and sometimes a little e-liquid ends up on the threads or the 510 connection.
When the contact points get gunked up, the connection between the cell and the device weakens, and the battery has to work harder to deliver power. That extra strain adds up.
So when your battery is looking a little worse for wear, give it a good cleaning. Keeping the threads and contacts clear helps both the battery and the device last longer.
6. Store it properly
You would not leave your phone in a hot car all day, and your vape should not live there either. Extreme heat is hard on a battery, and so is freezing cold.
Keep the device somewhere dry so moisture does not build up, and somewhere it will not take a hard fall. For loose 18650 or 21700 cells, a plastic battery case keeps the terminals from touching keys or coins in a pocket.
One more storage tip: top the battery up before you put it away for a stretch. Cells drain slowly even in storage, and a half-empty battery that sits will struggle more the next time you go to charge it.
7. Rotate your batteries
If you carry a spare cell for emergencies, put it into the rotation instead of leaving it in your pocket forever. A battery wears down from sitting, not just from use.
Give each cell a turn. Rotating them evens out the wear so both last longer, and you always have a charged backup ready to go.
8. Detach the tank when storing the device
You know how background apps quietly drain a phone? A tank or clearomizer left attached does something similar. It keeps the circuit primed and can pull a trickle of power even while the device sits on the table.
If you know the device is going unused for a while, unscrew the tank to preserve battery life and avoid any leftover e-liquid seeping into the connection.
Use an external charger for removable cells
Many mods include a USB port, and manufacturers generally intend that for backup or on-the-go top-ups. If your device uses removable 18650 or 21700 batteries, a dedicated external charger from a known brand such as Nitecore, XTAR, or Efest is the better everyday choice. External chargers are usually better built and better ventilated, they charge each cell on its own channel, and they keep heat out of your mod's circuitry. In a multi-cell mod the batteries are wired in series, so charging in the device can leave cells unevenly topped off.
Whichever method you use, charge on a hard, non-combustible surface at room temperature, away from sunlight and out of a hot car, and stick with cells and chargers that match your device.
Going longer between charges
If your vape always seems to run out at the worst moment, the cause is often a handful of common charging habits. Powering it off when idle, charging before it drains fully, keeping the contacts clean, storing it cool and dry, and using a quality external charger all add up to a battery that holds up far longer.
Worn your cells out for good? It happens. Browse our batteries to pick up a fresh set for your device.
Frequently Asked Questions
How long does a vape battery last before it needs replacing?
A rechargeable lithium-ion vape cell typically holds up well for roughly 300 to 500 full charge cycles, which often works out to several months to a year or more of regular use. You will know it is time to replace it when it charges slowly, drains noticeably faster than it used to, or feels warm during normal use.
Is it better to charge with the mod's USB port or an external charger?
For devices with removable 18650 or 21700 cells, a dedicated external charger is the better everyday option. It charges each cell on its own channel, is usually better ventilated, and keeps charging heat out of your mod. The built-in USB port is handy as a backup or for built-in-battery devices that have no removable cells.
Can I leave my vape charging overnight?
It is best not to. Most devices and chargers stop the charge when the cell is full, but charging unattended for long stretches is worth avoiding. Charge while you are home and awake, on a hard non-combustible surface, and unplug once it reads full.
Why does my vape battery die so fast even when I barely use it?
Two common reasons. Leaving the device powered on keeps it drawing a small amount of standby current, and a tank or clearomizer left attached can pull a trickle of power too. Power the device off when idle and detach the tank if you are storing it. Lithium-ion cells also self-discharge slowly on their own, so a battery that sits for weeks will be low when you return to it.
What is the best way to store loose vape batteries?
Keep loose 18650 or 21700 cells in a plastic battery case so the terminals cannot touch metal objects like keys or coins. Store them somewhere cool, dry, and away from direct heat, and top them up before a long stretch in storage since cells slowly self-discharge while idle.
Should I let my vape battery fully drain before recharging?
No. Running a lithium-ion cell down to empty adds strain each time you recharge from zero. Topping up around the halfway mark keeps the battery under less strain and shortens the time you spend waiting to vape again.
These products are intended only for adults 21+. Nicotine is an addictive chemical. This article is general product information and is not a smoking-cessation claim.