Backup batteries are big. At least most of them. The team at Go Design Group thought the world needed a smaller battery so they kicked out an idea into the world, the idea of a backup battery that would fit in a wallet.
The resulting product almost fits that specification, depending on your wallet and your comfort with sitting on technology. After the bending iPhone 6 buzz, placing anything into a back pocket can be considered questionable (for some of us, it was questionable all along).
The 1500 mAh TravelCard ($39)battery provides about half a full phone charge, usually enough to get through those end-of-day battery iPhone battery blues. The TravelCard only powers iPhones.
I had a TravelCard with me at ComicCon and it kept my phone going for most of the day and into the night, though it got a little too warm for my tastes. I talked to the company and they sent me a second one, and that one charges without the excessive heat.
TravelCard charges from a microUSB cable that connects to a USB port or other charging solution, but that is the only cable you will need. Once charged, the battery includes its own lightening cable for discharging into the phone (there is a microUSB model if you are charging one of those other phones). I would have liked to see the charging cable built in as well so the little battery would be nearly self-sufficient.
Despite it not really fitting my personal wallet situation, I’m sure some people may have room for the device in their pants, but I find it a better fit for a small pocket on one of my many shoulder bags or backpacks.
I like the TravelCard for what it is. Given that I travel light, but not that light, I usually have room for a bigger backup battery. But I will say, when I’m outfitted in just a suit and a phone, the TravelCard proves a nice, elegant solution that keeps the sometimes battery-draining iPhone plugging along.
Now, if keeping a battery hidden in the most intimate recesses of wallet or purse isn’t your goal, and all you're looking for is power when you need it, then the Lenmar Mutant ($199.99) may be more your style. The Mutant is to the TravelCard what a Cadillac Escalade is to a Smart car. Think four devices, multiple days of charge. Two iPhones and two tablets simultaneously. Now, as I’ve hinted, the Mutant, at 5.77 x 4.67 x 0.86 and 1.1 pounds isn’t going to fit in your pocket (unless you have a ScottEvest, and then it will fit in your pocket, though it will challenge the load balancing features of the jacket). The massive 20,800 mAh makes up for the bulk. Don’t get me wrong, the Lenmar Mutant is far from ugly. It sports a good design vibe wrapped around that massive battery.
The Mutant does a great job. It does such a great job that I have never exhausted it in practice.
The only downside is the time it takes the charge the Mutant, but in regular use, one overnight charge may meet the needs of an entire trip, so that isn’t really a big deal. It does require its own charger to push power into the cavernous power maw — the folks at Lenmar know this is a battery for real travelers so international adapters are included. This is a battery made for adventure.
To provide yet another view of what portable batteries can be, we have the Tylt Energi 2K ($39.99) 2200mAh battery. This little power house includes a standard US plugs right on its back so that it doesn’t require an adapter to charge. Just plug it in and go. It even acts as a travel charger when it’s charging. That’s a great feature for airports. Charge your phone while topping off a battery and then you get to keep watching or listening without power concerns while in the air.
Bottom Line
Backup batteries have proliferated in recent months almost as much as iPhone cases. They have evolved to fit every niche, as these three representatives attest.
So how to you pick the right backup battery? Ask these simple questions:
- How long might I need before I can get to a charger? This will help you determine capacity—the iPhone 5s has a 1560mAh battery so a similar size is roughly an extra charge. The more capacity, the more charge cycles on the phone without recharging the external battery.
- How much weight am I willing to carry?
- Does the charger support my device(s)? For iPads make sure the battery include a 2.1amp port as well as the 1.0 or 1.1 amp port for the iPhone.
The answer to the first question might need a little math as you add up the total mAh of the various devices you want to charge. For instance, an iPad Air battery is 8820mAh, which would would add to the iPhone 5s 1560 to give you a rough approximation of a battery that could fully charge both. The Lenmar Mutant is 20,800 mAh. That will charge an iPad Air about 2.3 times, and keep a single iPhone chugging on for over 10 days. Mix and match devices and your charging mileage will vary, to mix metaphors.