Tag Archives: backup power

Backup Power You Can Carry With You – A Review

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As a prepper, I like things that are rechargeable. It minimizes the gear I have to store and carry. I especially like rechargeable batteries, with very little pre-planning you could continue charging and using them for a long period of time —  even during a collapse.

One of the primary rechargeable devices that I–and everyone else–carry is my phone. Most of the time keeping my iPhone 5S charged isn’t a big deal, I keep it plugged in if I’m in the car, at work, or in bed; in between those times it typically has plenty of battery life. But for the times I’m not around a standard outlet, I like to have a portable charger. Previously I used a New Trent i-Torch External Battery, but recently–after testing and evaluating–I’ve changed to Portable Power Solutions M110 External Battery.

External Battery compared to iPhone 5

External Battery compared to iPhone 5

The M110 External Battery is ruggedly built, it feels like I could drop it and it really wouldn’t care. It’s not much bigger than a deck of playing cards at 4″ x 2.8″ x 1″, weighing 10 ounces (a deck of cards is 3.5″ x 2.5″ x 5/8″). It nicely fits into a convenient pocket on my EDC bag (it even fits in my back pants pocket). It has enough power to completely recharge my iPhone, even if the phone’s dead, four times. The External Battery has an USB outlet so it’s easy to recharge; to completely recharge it takes about 10 hours.

Portable Power Solutions also has a 7W Foldable Solar Panel that pairs nicely with their External Battery. But the Solar Panel can also provide enough power to charge your cell phone, or even tablet, directly from the sun. It folds down to a convenient 7.5″ x 7.5″ x 1″ with a rugged cover that includes a pocket to store accessories. When in use, it folds out to 15 inches long and can easily be attached to your pack (it has eyelets for this purpose), or set down angled toward the sun.

portable power productsPortable Power Solutions’s final product is a 10K Solar Charger. It has the same lithium battery storage capacity as the M110 External Battery, and is about the same size (5.2″ x 3″ 0.8″, weighing 6.2 ounces). It’s a highbred, meaning it can both store power and be recharged by the sun — but it doesn’t do either thing as well as the two individual ones above. It has a small solar charger so it takes a long time to charge (36 hours). And though they still try to make it rugged, it does have a solar panel on it and needs to be handled with much more care. But it can, and does, do both jobs to the best of it’s capability.

Portable Power Solutions is veteran owed, and they’ve “been there”. All of their products are built to be heavy duty, durable, and weather resistant — they’re designed primarily for military guys to take to the field (who are notoriously hard on gear). I like the products and the company, and it’s definitely earned a spot in my everyday carry (EDC) and my Get Home Bag.

Product Review: Duracell Digital Inverter 800

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  1. Do you live in an area where the power could ever go out?
  2. Do you own a vehicle (or, more accurately, own a vehicle battery)?
  3. Do you have small devices such as cell phones, laptop computers, tablet devices, power tools, or even lamps that you would like to be able to power during a blackout?

inverterIf the answer to all these questions is “yes”, do yourself a favor and spend about $65 and get a Duracell Digital Inverter 800 (or another comparable quality inverter).

How does an inverter work? To review, batteries store DC (direct current) power, while common household devices use AC (alternating current) power. An inverter converts stored DC power to useable AC power (anything with a two/three prong plug).

When people first begin thinking about backup power, they frequently discuss getting a generator. While a generator can be a good step — when it’s an informed decision, and it’s capabilities and limitations are understood. But a generator can be expensive, it takes up space, needs to be maintained, and storing gasoline for it can be a hassle. An easier first step to backup power is a quality inverter. If you already have a generator this adds a second level of redundancy, and might work even better for smaller devices and when you’re on the road.

I first heard about these inverters on The Survival Podcast in an interview with Steven Harris (here’s a list of the many interviews Steven has done on a variety of backup power topics).The Duracell Digital Inverter 800 is convenient and simple to use. It’s relatively compact (7.5” x 4.5” x 2.25”), solidly built, and light weight (1.8 pound). It has a nice LED digital display that shows input and output voltages, making it very easy to oversee and troubleshoot the inverter.

inverter in JeepTo use, connect the inverter directly to your car’s battery terminals (using the DC battery cables with alligator clamps). Then, I’d recommend, run a long 14-gauge extension cord into your house and plug it into a power strip. Plug your devices into the power strip; when you’re not using it, you can turn off the power strip to ensure you’re not inadvertently drawing power to an appliance. Of course you can always plug appliances, or tools, directly into the inverter.

When you’re using the inverter an alarm will sound when your car’s battery gets low, and the inverter will automatically shut off before the battery gets too low; this ensures you’ll never drain your vehicle’s battery further than you should. At that point you can either drive around for a bit, your car’s alternator will recharge your battery, or switch to another vehicle’s battery. For those that have a diesel pickup truck (like our Ford F350) you have TWO batteries, so twice the backup power potential. If you leave your vehicle idling, you can draw full power as long as you have available fuel; this is especially handy for larger devices (the inverter can handle devices that surge up to 1280W). The inverter also has a high voltage shutdown, an overload shutdown, and an overheating shutdown.

There are different size inverters, both higher and lower rated, but the 800 seems to fit the best for most of us. Their 400 is handy because it also comes with a DC lighter adapter allowing you to draw up to 150 watts without having to connect to the battery; very useful for road trips. (Despite what Amazon.com says, the 800 watt inverter does not come with a lighter adapter.)

Having an inverter will allow you–during a power outage, or anytime you’re away from an AC outlet (camping, job sites, etc.)–to convert the DC power stored in your car’s 12-volt battery into 120-volt AC power that you can plug electric devices into.

We tend to take electricity, and our access to it, for granted. When it’s not available our lifestyles quickly change. Having a Duracell Digital Inverter 800 around is an easy step to provide needed power for communication devices, tools, and light when needed.