ESP32 Forum

Hi, i'm investigating the power of my ESP wifi system. Would anybody show me some data comparison of ESP32/ESP8266? Only WiFi/STA data is transmitted. Could I use battery to power my simple platform? Any comments are appreciated including show me some wiki link. Thanks.

Hi xian, in both datasheet's show power consumption.

However, both esp's with WiFi is about 80-240mA (rx and tx). See tables in sheet.

If you need to use batteries, you need to use sleep's modes, like deep sleep.

urbanze wrote:Hi xian, in both datasheet's show power consumption.

However, both esp's with WiFi is about 80-240mA (rx and tx). See tables in sheet.

If you need to use batteries, you need to use sleep's modes, like deep sleep.

Thanks urbanze. yes 80~240mA is normal data from wifi data tx/rx perspective. do you know if any customer has run ESP32 with battery in deepsleep mode? i'm just worrying about the power consume -- my customer need my solution with ESP32/wifi to run more than 1 week. Not always TX/RX wifi data but need it periodically. I'm investigating some data to show customers evaluation. I did not find any clue from ESP official document.

xiangcheng wrote:... I'm investigating some data to show customers evaluation. I did not find any clue from ESP official document.

Look at Esp32 technical reference manual chapter 29.3.9.
There are also many references to power consumption in this forum and elsewhere. Try to "investigate" more thoroughly.
I'm using esp32 with battery and I can get <6 uA consumption in deep sleep mode.

xiangcheng wrote:

urbanze wrote:Hi xian, in both datasheet's show power consumption.

However, both esp's with WiFi is about 80-240mA (rx and tx). See tables in sheet.

If you need to use batteries, you need to use sleep's modes, like deep sleep.

Thanks urbanze. yes 80~240mA is normal data from wifi data tx/rx perspective. do you know if any customer has run ESP32 with battery in deepsleep mode? i'm just worrying about the power consume -- my customer need my solution with ESP32/wifi to run more than 1 week. Not always TX/RX wifi data but need it periodically. I'm investigating some data to show customers evaluation. I did not find any clue from ESP official document.

With an efficient code + deep sleep, any battery like a 18650 can last for years easily! Even more with the ULP the joke becomes very serious and interesting, greatly increasing the battery life depending on the project.

Thanks a lot. Frankly, I need study the release SDK code deep_sleep.c more thoroughly and find some useful application which is from other mature products. Appreciate your hint that helps answer my customer's urgent question which I'm not familiar with.