Arduino nano

Hello guys,

Is it possible to supply an Arduino nano with an external battery (5V/3A) without burning the components?
And what is the max current and voltage that can a nano endure?

Thank you

Steewz

Batteries don't usually have current (amperes), they have capacity measured in Ah (Ampere.hours) and that's different. Do you want to check the specification of your battery?

But either way any 5V supply is fine. The Nano will only ever take the current it needs (maybe 50mA) so even 5V 100A would be o.k.

Steve

Steewz:
Is it possible to supply an Arduino nano with an external battery (5V/3A) without burning the components?

I take it you're talking about a power bank?

Of course that will work just fine. Just connect it to the USB plug. Mind that most cheap powerbanks won't be able to do their rated current for long...

Regarding the max voltage, if you power the Nano via the 5V pin then you are powering the microcontroller directly, which can work with a voltage range of 3.8-5 V. If you power the Nano via the VIN pin, it is powered through a voltage regulator and can work with a voltage range of 6-9 V, but be aware that that the voltage regulator is inefficient and so will reduce the time the Nano can run on a battery charge.