3 ms·
Mind you that's 3100mAh at 12V. That's roughly 7400mAh at 5V (USB voltage).
by cure 5y ago
Mind you that's 3100mAh at 12V. That's roughly 7400mAh at 5V (USB voltage).
- colanderman 5y agoThat is assuming a DC-DC converter. 3100 mAh is 3100 mAh regardless of voltage if the charging functionality uses a cheaper/simpler linear regulator.
- cure 5y agoIndeed! That's a good point. If it uses a linear regulator, I guess the thing would produce quite a bit of heat when drawing power from the USB ports - the extra energy would just be converted into heat.