Hello everybody,
I recently bought one of those motopower 3.1 amp dual USB kits and installed it in my car. I piggybacked it from an existing fuse, and protected it with a new 5 amp fuse.
Now I got 2 questions:
* Is 5 amp fuse to protect my battery too high? As the motopower can output (5v, 3.1A -> so roughly 15W). With the 5Amp fuse the input of the block can be a maximum of 5A*12V -> 60W. Isn't this too much? Would i not be better of protecting my battery with a lower rated fuse? In case something happens with the motopower, that it doesn't starts drawing 60W from my battery?
* What happens if I connect a really powerhungry dashcam that draws for example 2A to one of the USBs (I know 2 amp is not realistic, but this is a hypothetical example) and then I connect an iPad also capable of drawing 2A on the other USB, so for a total of 4A to the motopower block. What would happen then? The Motopower can only deliver 3.1A? Will my car burn down ?
Thanks for the replies!
I recently bought one of those motopower 3.1 amp dual USB kits and installed it in my car. I piggybacked it from an existing fuse, and protected it with a new 5 amp fuse.
Now I got 2 questions:
* Is 5 amp fuse to protect my battery too high? As the motopower can output (5v, 3.1A -> so roughly 15W). With the 5Amp fuse the input of the block can be a maximum of 5A*12V -> 60W. Isn't this too much? Would i not be better of protecting my battery with a lower rated fuse? In case something happens with the motopower, that it doesn't starts drawing 60W from my battery?
* What happens if I connect a really powerhungry dashcam that draws for example 2A to one of the USBs (I know 2 amp is not realistic, but this is a hypothetical example) and then I connect an iPad also capable of drawing 2A on the other USB, so for a total of 4A to the motopower block. What would happen then? The Motopower can only deliver 3.1A? Will my car burn down ?
Thanks for the replies!