- Nov 9, 2007
- The great state of Misery (Missouri)
I have a couple of Attom Tech 2500 mAh power banks. They aren't much [two of them sandwiched together would be about the same size as a cigarette pack,] but they are small enough to slip into a shirt or pant pocket and carry in case a little extra power is needed. They have a single LED indicator that blinks red while charging, and turns blue when fully charged. I make it a policy of charging them every couple of months just to make sure they are fully charged if needed. I put one on charge this afternoon and nothing. No indication whatsoever. I left it thinking that maybe it had self-discharged to the point the LED didn't display. I checked it a little while ago [about three hours after starting to charge] and still no LED. So I left it plugged in, and plugged its charging cable into my phone, which was at 86% Well, the phone just indicated full charge so I went to unplug the Attom from the phone, and lo and behold there was the blue LED. My only theory is that the battery was so far down that it when it had recharged, for some reason that didn't trigger the signal circuitry. but the pass-thru charging of the phone triggered it. I'm going to keep an eye on the Attom, but am glad that so far it appears to still work.