H4n Pro POWER SUPPLY record limitless 

When it says, "1A" on the bottom of the H4n, it means you need to be able to supply at least 1A of power at 5 volts. So you can plug it into a 1000A supply and it will only pull 1A and it will be happy and perfectly safe. If you "feed" it with a 0.5A power supply, it might overheat the power supply and start a fire. Think about your house wiring and extension cords: you need to be able to provide more than what your power tool wants. The house will deliver up to 15A, and so plugging in a 15 amp vacuum cleaner works fine. But - don't try to run it through a thin extension cord! Those cannot handle that sort of current, and they'll start a fire. Or think about drinking a glass of water: if you had a trickle refilling your cup you would empty it and still be thirsty. But if you had the capacity of a firehose (assuming you could only turn it on just a tiny bit) it would easily keep your glass filled faster than you could drink.

This is a great idea! I’m pretty sure the current rating on the power supply only matters in so far as the H4n will only draw up to 1A. This means an 0.5A supply will not work and potentially damage the recorder. Using 2.1A rated output wouldn’t matter because the H4n still would only draw 1A. What would be problematic would be using a 9V supply. At least that’s my understanding from using guitar pedals with different voltage and amperage ratings.

This is unbelievable, I didn’t know this! Thank you!!!!🎉

Thank you so much for such and in-depth tutorial for someone like me who just got one. I did watch another one but it did not say about the ampage.

thanks, that was really helpful! and some of the comments, too!

Another great information what we looking for 👍

Thanks for the great tip on the H4n Pro!. Off subject, I love your table. Did you build it?

Thank you for the links and it is very useful information. :)

Thanks a lot for this video. Do you think it would work the same for the previous model, H4n (none pro)?

What I did is: I got and old 5v smartphone charger and joined to a notebook universal cable to use it wall-plugged. The connector of Zoom H4n pro is type G. I could even also join to a usb cable to use with portable supply. H4N pro is too power hungry. I miss my H1. It worked by being powered through the usb b port, which h4n pro cannot (it enters is connection mode).

Does the external batter supply create noise in the records? I feel that the a/c power adapter does add ground noise. Great video!

What kind connector used from the adapter cable to H4N? Is ground center?

Very helpful! Thanks.

Great useful information! But i dont understand why does everyone use this cable, why not to use the usb mini cable with the powerbank?

Could anyone measure the volts and amps output of an original H4n Pro zoom adapter? someone who can measure it with an electrical tester. and end of discussion

Hello, nice video. How long will the powerbank last?

thanks

When i turn on phantom power the h4 goes off. What could be the issue

hi, thanks for the info! please tell me on zoom h5 will it also switch from bank to battery? If the power bank sits down or the wire is pulled out, will the zoom h5 also automatically switch to battery power?

Would you list the model of the power bank

with zoom h5 it is saved even if the power is disconnected

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