I have been playing around with the M18 power source, this is obviously only of interest to those tradesman or serious DIYers who own Milwaukee kit.
I currently have a full charged 4ah battery and I have half charged my Samsung S4 while I have been using it in a couple of hours. The 18v battery is still on 4 bars though these indicators are only really a rough guide and dont give a precise indication of performance. People are reporting online up to 6 full cycle charges of a completely dead smart phone.
The USB is a 2.1A also which is standard from most main powers chargers Ive seen.
This also has the standard 12v DC plug which will apparently give me 18hrs of heat from my Milwaukee heated jacket.
The downside is obviously the weight at about 800gms and the fact you have to invest in a cordless tool kit to make this a viable solution. Im kicking myself I never purchased one sooner for the remote sites I sometimes find myself in and not just to run a GPS app from my phone.
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