I disbelieve. How is he going to maintain connectivity while changing the battery? That takes a couple minutes (including the reboot time). He needs a whole spare phone!
Oh, yeah -- those are bog-common (and cheap) these days. I think I own half a dozen of them by now, and keep a fully-charged one in my backpack at all times.
It's basically a battery with two USB ports: a microUSB input for charging the battery, and a standard USB output to let the battery charge the phone. You keep a standard short USB-to-micro cable with it, and you're in good shape for both directions...
Thanks. I've got the short cable (occasionally add juice via laptop at work), but I don't have a charger with USB out. Sounds like something I need to get.
Plus (check me on this), since it's a power source rather than a battery to put into your phone, it doesn't care about specific brand of battery, right? So replacing a phone doesn't necessarily mean replacing the extra battery and charger.
Correct -- it's a generic power source, and should work for anything that takes USB power. Indeed, the only way in which most are specific to "phones", as a category, is that they are mostly too small to be as useful for recharging, eg, tablets. They're thoroughly interchangeable.
(Slight caveat: some phones now have a high-power charging mode -- if the power source supplies it correctly, they can charge *faster*. But AFAIK pretty much any phone will charge from a standard USB source.)
You should be able to find them in pretty much any electronics store these days. Heck, I've seen them at CVS, now that you can find some under $20...
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It's basically a battery with two USB ports: a microUSB input for charging the battery, and a standard USB output to let the battery charge the phone. You keep a standard short USB-to-micro cable with it, and you're in good shape for both directions...
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Plus (check me on this), since it's a power source rather than a battery to put into your phone, it doesn't care about specific brand of battery, right? So replacing a phone doesn't necessarily mean replacing the extra battery and charger.
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(Slight caveat: some phones now have a high-power charging mode -- if the power source supplies it correctly, they can charge *faster*. But AFAIK pretty much any phone will charge from a standard USB source.)
You should be able to find them in pretty much any electronics store these days. Heck, I've seen them at CVS, now that you can find some under $20...