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Question: Is the Kmashi capable of pass-through charging so that the kmashi and your phone can charge at the same time when plugged into a 5V wall adapter?
Document: Here is the trick. There is a little button next to the 4 little blue lights on the side. Tap the button quickly once to turn on to charge device mode. Push and hold the button for 1-2 seconds to turn it off. Worked well once I figured it out. For charging the KMashi, it is automatic once microUSB is plugged in. I wanted to give 5 stars but because this critical info was missing I had to give 4.
A four-LED bar graph shows the state of charge and indicates when the Kmashi itself is  charging.I also bought the Vinsic &#34;Tulip,&#34; (see separate review) charger, which has about one-third the capacity of this unit, but is smaller and lighter. Both are useful. For a camping trip or any time when you might need multiple charges from the charger without recharging its own battery, the Kmashi cannot be beat.I find myself using the Tulip more.
Recieved uncharged so put it on charge overnight. Instructions said it would fully charge in less than 7 hours. First thing this morning it appeared to be fully charged - the lights had stopped flashing and all four were illuminated and steady. Unplugged the charging circuit and plugged a phone with a battery that needed to be charged, into the the output usb port, pushed the 'start' button, and...nothing. No lights, phone &#34;battery charging&#34; indicator did not illuminate.
I bought this for my wife. She spends a lot of time on her cell phone (iphone 4) and often runs low on battery during conversations. I bought her this so she wouldn't have to stand near an outlet to finish her conversations. I also use it to charge my Kindle Fire. It charges faster than the plugs and can charge multiple times (wifes iphone can charge about 4 times before recharging kmashi).
So far the KMASHI has performed as advertised. I have been able to recharge my i-Phone 5 about 4 times to full charge. I also hooked up both i-Phone and i-Pad simultaneously for recharge, although the time to recharge took a bit longer when both devices are charging - not something I would routinely do, but it works.
[Recharge Time]During recharge, the MP816 draws up to 1.5A - as long as your USB power source can supply it. So it takes about 8 hours to fully recharge the internal 10Ah battery pack. But if your USB power source can only supply 0.5A, then it could take 20 hours! One drawback I discovered is that there is no pass-thru charging.
I was not using it at the time, but WiFi, GPS, and Bluetooth were enabled in addition to 3G cellular radio.20 minutes brought it up to 55%, with 2 LEDs still lit on the battery pack.At 1 hour, the iPhone read 88%, and battery pack was finally down to 1 LED.I then plugged the Nexus 4 back in with it at 52%, and charged the phone while running errands on my commute home, approximately an hour of plugged in time.
Very useful, and I like that it shuts off after a few seconds once you unplug your phone from it. Another thing that I like about it is the 2.1amp port.I have a nexus tablet that requires a 2.1amp port to power up if it has been completely discharged, otherwise it wont be able to power up. I plugged it into this thing, and it was able to start charging.
I bought many battery charge units before and they never seem to live up to their promises. But this one by KMashi was a total surprise for such affordable price. First it looks so neat. Kind of a fashion in itself. Opening the box, it fully charged up 1 hr (came about half full). Then I plugged my 8&#34; tablet and smartphone (both almost empty charge) and charged up to full in matter of 2 hours.
My aging iPhone does not hold a charge very well, and it's welded to my hip all day and frequently in use. Charging it overnight does not provide enough &#34;Juice&#34; for a whole day of operation.The Kmashi charger is larger than the iPhone and heavier, too, but it's a real powerhouse of a charger.
Answer: Pass-Through charging is not supported on mine. Connecting to the power immediately disconnected the full size USB charging ports.