Page 1 of 1

External supply

Posted: Mon Mar 11, 2019 7:30 pm
by simone91
Hi,

I want to use an ESP32 with an external supply.

For the moment I used an alcaline battery 9v 600mAh, and run correctly. It' s enough? How long it can supply my circuit?

Someone have another advice for the external supply? I would like to use a battery as small as possible.

Re: External supply

Posted: Tue Mar 12, 2019 3:31 am
by AshIsPurestWhite
Using a efficient buck IC will help a lot. And what task you run may have a big impact for the battery life. You can measure the power consumption and the battery life by yourself. I think it's not too hard to operate.

Re: External supply

Posted: Tue Mar 12, 2019 6:20 am
by MXKx20
Any rechargeable options with small Li Batteries?

Re: External supply

Posted: Tue Mar 12, 2019 9:32 pm
by simone91
The duration of the is about 4-5 hours... I will find a source that can power it for 20 hours.

Can you advice me?