An external USB-powered battery is not a complex piece of electronics. Generally it has energy input, energy output via a couple of standard USB ports, maybe a few LED lights for measuring the charge, and perhaps a flashlight if the manufacturer is feeling creative. But today's Amazon Gold Box deal includes a battery that can actually start your car. How's that for flexibility? The Anker gadget (an economical brand name we've come to trust) is going for $59.99, $100 off the retail price. Read More
This is a deal alert that really lives up to the urgent nature of the term—you need to act fast to take advantage of this one. The RAVPower Element 10,400mAh battery pack is on sale for just $15.99, but only for the next few hours or until it's out of stock.
There's a deal over at StackSocial you might want to take advantage of, but you'll have to hurry. The ZeroLemon SolarJuice 10000mAh Battery is on sale for $26, down from a regular price of $50. The deal on this solar-powered battery is only good for the rest of the day, though.
When the battery in your phone isn't good enough, there's a plethora of external batteries available to pick up the slack. The ReVIVE ReStore Q10x is a 10,000mAh unit that usually costs about $35, but it's on sale at just $19.99 for the next few days. It's available with Amazon Prime shipping too.
Most portable external batteries make it easy to charge up a phone or tablet when your power runs low, but what about a computer? The ChargeAll can do both, and it has really excellent reviews on Amazon. The only problem is the price, but TouchOfModern has the ChargeAll heavily discounted if you don't mind waiting.
You can't get something for nothing, but in this case you can get pretty close. Power Skin has a killer Cyber Monday promotion with its PoP'n selling for just a penny. You still have to pay shipping, but that's only $8 for basic US delivery. You're probably wondering what a PoP'n battery is. Well, it's kind of weird.
Update 11/14/14: The previous coupon expired but a new one popped up.
Even the best of us have miscalculated and run low on battery before heading to an outlet, but that's what external battery packs are for. These devices pop up on sale from time to time, and today there's a good deal on the Poweradd Pilot X5 with a 16,000mAh capacity. The price usually hovers around $40, but you can score one for $24.99 with Prime shipping using the coupon code below. Read More
There may not always be a power outlet nearby when you need one, so perhaps a giant external battery is something you should consider. In fact, there's a particularly massive battery from EC Technology on sale through Amazon right now. 22,400mAh of power for just $34.99.
This device is usually priced between $50 and $55, so this is a solid deal. It has two USB ports (up to 2.1A) and an LED flashlight for good measure. Read More
Now that everyone seems to be carrying around smartwatches, Bluetooth headphones, and various other bits of electronic detritus, we need ways to keep them charged up when they inevitably die before the end of a long day. Samsung wants your Galaxy phone or tablet to be the backup battery for other stuff, like a Gear watch, via the brand new Power Sharing Cable. It's a little double-sided MicroUSB cable that allows one gadget to charge another, without any AC adapter or portable battery pack. Read More
Technology in general and mobile tech in particular is on a rapid march forward, but there's a bottleneck that's holding it back: batteries. For years lithium-ion batteries have been the best option for storing energy pound-for-pound, but they've hit a wall - now we can only get bigger batteries or make our gadgets more efficient. A team of researchers at Stanford University have created what they call the "holy grail" of battery technology, a battery with a stable lithium anode. Read More