Ok, so we’ve covered the different types of batteries, the different sizes and the basic principle of use. Let’s take a look at another important aspect of using a vape battery; charging.
Internal batteries are charged via a micro USB cable, one end plugged into the mod and the other into either a USB device or a mains outlet.
External batteries require the use of a good quality battery charger. This is the safest way to charge your vape battery, whatever the size or variety. Charging properly with a reliable charger is guaranteed to prolong the life of your battery. If you need any help picking the best battery charger for your cells check out our full guide here.
Several good chargers are available on the market, some single chargers, double chargers (2 batteries) and 4 x chargers. A good charger will charge each battery slot independently of the other and automatically detect the type of vape battery in the slot. It’s also important to choose a charger that delivers a charge at an appropriate rate, safe for the battery. The more advanced chargers available will also show you the static and charging rate in either LED’s or numeric value.
Personally, I would go for the best you can afford at the time as it’ll pay dividends in the future. I use this Nitecore D4, which has all the aforementioned features and is extremely reliable.
Battery duty cycle:
Approximate number of recharges a vape battery can undergo before it’ll no longer hold a charge. Duty cycles can be as high as 500 charges but will vary depending on the specific battery type.
While a lithium ion battery doesn’t have “battery memory”, the capacity of the battery will decrease over time as you use it, until finally it’ll no longer hold a charge. You don’t have to fully discharge the battery before charging it like you do with many other rechargeable batteries. You can also use it from the outset without first having to charge it.
Just keep in mind, you’ll get longer life expectancy from a battery if you don’t drain them down each time you use them. Charging before the battery is drained will prolong the overall life expectancy. Consistently draining a battery to 3.2 volts or lower before re-charging will decrease battery life expectancy.

