As we find ourselves in yet another month, the focus for more than a few of us invariably leads to the topic of change. A vast number of people assign as the arbitrary start date from which they will make their lives better – whether that comes in the form of joining a gym, improving their diet, or smoking their last cigarette.

In spite of there really only being anecdotal evidence that vaping is better than smoking conventional cigarettes (as there have yet to be any long-term scientific studies on the relatively new smoking alternative), a considerable amount of New Year’s resolutionists are turning to e-cigarettes as a way of proclaiming “No more!” to the firm grip that big tobacco has held on their health and wallets for years.

In order to be an effective substitute however, e-cigarettes need to be ready to serve when called upon – and that means you’ll likely need to invest in a portable power supply that you can rely on.

Thankfully, most e-cigarettes/vaporizers re-charge using a micro-USB port; which means consumers can either use one they already own, or find one that they can use to charge a number of different devices.

Depending on your usage and number of devices that require a mobile power plant to keep them fully juiced, there are a number of different options available that offer significantly different configurations in terms of capacity (mAh), output (number of ports), weight, and perhaps most importantly, charging time required and price.

To give a bit of context, the Aukey Quick Charge 2.0 and Braven BRV-Bank Rugged Portable Battery are both comparable in terms of output, unit weight, and charge time (4-5 hours); where they differ however, is functionality. Granted, both are adequately suitable for charging your e-cigarette or phone in relatively short order. Where the Braven leaves the Aukey behind is the Braven Remote Battery Power Monitor app that you can download that allows you to connect to the battery via a Bluetooth connection to get an accurate reading of the remaining power in the unit, allows you to remotely turn the ports on and off, and, activate an alarm to help you locate the device should it be misplaced. At a retail price of around $40, the Aukey unit will deliver the power supply you need – it just won’t deliver much else in the way of bells and whistles.

If you’re considering re-purposing one of your Apple device’s chargers, it’s advisable to reconsider. Most e-cigarettes are powered using a lithium-ion power supply. Lithium-ion chemistry can be finicky at times, which is why most consumer gadgets containing lithium-ion batteries generally come with an advisory to only use with certain chargers. Failing to charge your e-cigarette or vaporizer with the proper equipment can, in the best case scenario damage the device you’re charging; worst case, you may have a small explosion to deal with.

Another option is to opt for an in-car charger. When it comes to cost, these devices are near the bottom of the spectrum – even one of the industry’s favorite units (the Moshi Car Charger Duo) is priced quite modestly.

Car chargers deliver a steady stream of power, and most can adequately charge two devices at once. Where these chargers fall short, is the fact that they can only be utilized while in your car – which is great if you’re on the road a lot, but won’t give your devices a full charge while on your daily commute to the office. For just a little bit more, portable battery chargers allow you to charge whenever you need to, wherever you need to.

As for determining which charger trumps them all, it really comes down to personal preference and how the device will be used. For example, if money is no object and versatility is important, Cyntur offers a micro-sized jumper kit that will allow you to jumpstart your car on a cold winter’s day just as easily as it will allow you to charge your smartphone or micro USB-equipped e-cigarette.

If charge time and size matter most, LinearFlux offers a portable battery that weighs just over 3oz and only takes 90 minutes to three hours to fully charge.

The point is, the right power supply is the one that works best for you.  If switching to e-cigarettes topped your New Year’s resolutions, make sure you’ve invested in the right portable power supply to help you succeed.