Rechargeable battery situation for ESP32-CYD

[kf106]

I've been using a Lilygo T-Display-S3 for my hobby work, and you can plug in a LiPo 3.7V battery to the device. On full activity my 300mAh battery lasts about 3 hours. But more importantly, when you plug a USB-C cable into the device, the battery is charged - a red LED lights up, and then goes off when the battery is full.

Is there a battery connector for the ESP32-CYD, and does the USB connector handle its charging properly?

[witnessmenow]

No, and as a result no 😅

There is no battery connector or circuitry. A cyd powered by battery will require external modules/components

I created an issue around this but I haven't made any progress since this

#47

[saharco540]

This could help you out, adjust to 5V
https://www.aliexpress.com/item/32949661746.html

[BerndHL]

I just built an esp32-2432s028 with a 3.7V lithium-ion battery, an MT3608 and a TP4056 in a 3D printed case. Unfortunately, so far only between 3 and 5 hours of running time. so far only LVGL display without interactions.

[AndreLynch]

That's a pretty good time . I get around 90 minutes

[slayer522]

do you have a guide for this?

[SimpleAsh]

Hi everyone, I was reading through this A month or so ago, I did a bit of Think and got the bits I thought might work built it this is what I came up with

Working charge/ discharge same as anything else $1.80 and $7 tidy , thanks for everyone's comments it made this a simple and fast build

I

[SimpleAsh]

Sorry also fist post here didn't have it planned out

[SimpleAsh]

There are a few things I would do different. On the photo with the battery and drawing they are around the wrong way and if you have the same case from AliExpress move the power module all the way to the edge of the case I used hot glue so I might move, and also might cut the case so getting the SD or is a little easier, I also found hot glue the wires to the board in place as they are very small contacts at t back of the USB and I have a very cheap soldering iron,

[slayer522]

do you need to have two usb ports? in your video the battery was charging via the pre-installed port.

Is this because you wanted a dedicated charging port?

[SimpleAsh]

This is working not sure of time yet only just tried

[raynoxu1337]

whats the module you used? Does it boot to 5v? i would like that module for this and some other projects :)

[SimpleAsh]

https://youtu.be/XBvBRjAgCMo?si=BMW4hoT7bKckr7gd