Maybe you can answer a general charger/power pack question I have: My ZTE Engage smartphone is very picky about what will charge it. The two battery packs I have built already will charge the wife’s HTC One but not mine, my guess is because of something to do with the data pins. My power packs only use the + and - wires. So my question is about what certain chargers do to make the device it’s connected to think it’s connected to a computer, and how to know which chargers do that. Thanks!
Thank you for these great reviews HKJ. It really helps to get an idea of what these products are so we don’t have to order blindly.
I have a question about using cells of different voltages in this or other boxes. Why is this not a good idea? Shouldn’t they balance each other out since they are in parallel?
Also, would using different types/rands of batteries within the same box be OK? (eg Sanyo UR18650FM and Panasonic NCR18650B)
And lastly, Any chance that you could review this USB battery box?
QIDIAN 3-Piece 3A 1-4*18650 Dual USB Output Mobile Power Pack Battery Charger Kit
They will balance each other out, usual in a couple of minutes. To avoid this high cross current, it is better to start with about the same voltage on the batteries.
It is the same when charging in parallel, it is recommended that the batteries are close in voltage, before you start.
It will work, but you might not get the full advantage more batteries. With four of the same, they will always share the load. If you mix UR18650FM and NCR18650B, the UR18650FM will have the main load at the start and the NCR18650B will have the high load at the end.
Yes, there is a very good possibility. I have it in queue (That means that I have), but that queue is rather long at the moment, i.e. it will probably be more than a month, before I post a review.
Going to buy this from fasttech as they’re providing a suitable ac adaptor… Problem is that I’m in Australia so I need a converter from here: http://www.fasttech.com/products/1183109