Use this forum to chat about hardware specific topics for the ESP8266 (peripherals, memory, clocks, JTAG, programming)

User avatar
By trackerj
#24538
Mario Mikočević wrote:Heya,

do you connect 18650 directly or through step-down to 3.3V ?
Isn't fresh battery voltage of slightly over 4V too much for ESP ?

--
Mozz


onboard 3.3V regulator. Don't push ESP8266 over 3.5V, it will be not happy at all. I know some people are abusing them over the specs, but I really don't recommend.
User avatar
By Mario Mikočević
#24551
trackerj wrote:
Mario Mikočević wrote:
do you connect 18650 directly or through step-down to 3.3V ?
Isn't fresh battery voltage of slightly over 4V too much for ESP ?


onboard 3.3V regulator. Don't push ESP8266 over 3.5V, it will be not happy at all. I know some people are abusing them over the specs, but I really don't recommend.


Ty, what regulator do you recommend considering it's internal voltage drop ?

--
Mozz
User avatar
By alonewolfx2
#24559 Yes I don't recommend. But my one module working with 5v lcd on 5v power and it still working(59 days)
trackerj wrote:
Mario Mikočević wrote:Heya,

do you connect 18650 directly or through step-down to 3.3V ?
Isn't fresh battery voltage of slightly over 4V too much for ESP ?

--
Mozz


onboard 3.3V regulator. Don't push ESP8266 over 3.5V, it will be not happy at all. I know some people are abusing them over the specs, but I really don't recommend.