Bests & Worsts Reviews from Amazon

This seemed like a really good idea. A portable charging source AND a flashlight that fits into a small, convenient package for use when needed, and in a solid metal casing, too. Except it doesn't work. Not as advertised, anyway. I have an HTC One with a 2300 mAH battery, and expected this to be able to deliver one full charge when needed. Instead, after leaving it charging overnight on this device starting at about 7% remaining charge in my phone battery, it brought my phone's charge up to just over 50% before quitting. This would indicate that the charger offers less than half of the advertised capacity of 2600 mAH. Obviously, that is not what I, or any other buyer of this product, is paying for. There were some other minor build quality issues, but none of them are even worth worrying about if the product fails to perform its most basic function. Mine is going back. UPDATE: I've been in discussions with EC Technology about this issue. 2 things appear to be causing my issues. The first is that they assume that you will be charging your device in a powered down state. If that is not the case, your device will consume power and charge at the same time resulting in less than a full charge going to the device battery. Second, and more importantly, the expected conversion rate from the charger to the device is about 70% (NOT mentioned in the product description) meaning that the 2600 mAH battery advertised will, at best, provide about 1800 mAH of charging capacity. If your device is turned on during charging, it will achieve even less, which is reflected in the performance I observed. So basically, this product will probably work fine for a device with a 1500-1800 mAH battery. Anything bigger and you should probably be looking for a larger charger. Mine is still going back.