•Power: ESP32 WiFi draws 150-200 mA during TX. nRF52840 BLE draws 5-10 mA. For a battery-powered wearable, that’s the difference between 2 hours and 20+ hours of runtime on a single-cell LiPo.

•Power: ESP32 WiFi draws 150-200 mA during TX. nRF52840 BLE draws 5-10 mA. For a battery-powered wearable, that’s the difference between 2 hours and 20+ hours of runtime on a single-cell LiPo.

• LiPo battery for isolated power supply (no wall power on the headset side)

* how long can I expect the board to run continuously with the 500mAh 3.7V LiPo Battery.

The PC / BLE switch has no effect on operation; both positions power on the board. Suggest trying the 4 AA battery pack, just in case your Lipo battery might have some strange issue under load.

My Cyton board stopped working suddenly and I can't figure out what the issue is. I used it for about an hour for some EEG demos after which it basically went dead. I thought the battery had discharge

https://cdn-learn.adafruit.com/downloads/pdf/adafruit-microlipo-and-minilipo-battery-chargers.pdf

Thanks for the response. If the issue is excessive current draw then couldn't this be fixed by just using a better battery like a LiPO or LiFePo4, which - as I understand it - can deliver far more cur

The charger is the Adafruit MicroLipo. See page 11, and earlier pages describing the charge rate. Probably just leave at the factory setting of L (meaning 100 milliamp charging rate.)

Does anyone use 18650 li-ion (not lipo) batteries, 3.7v (fully charged 4.20v). Is it safe to connect two batteries and have voltage 8.2v at peak in such case or single 3.7v battery will be sufficient

No, the Cyton power inputs are protected by a diode. So even if you use the wrong type of LiPo battery polarity, it will not harm the circuits. However be careful with the charger it might have been d

But as soon as I plugged it into the Adafruit micro lipo charger that came with the Cyton, the charger started smoking!

Recently i bought Lithium Ion Polymer Battery - 3.7V 10050mAh (10 Ah) and USB LiIon/LiPoly charger - v1.2 to charge it.

Cyton assembled as instruction, tried with and without the dasy. I tried both your AA 1.5V battery and the LiPo of 3.7V, no led turning on neither on PC nor BLE, I pressed the button the reset on the

Maybe its just me? But assembling the rechargeable battery into the case supplied with the Cyton seems to be very much a juggling act.

I'm using a 3.7v 500mAh LiPo battery.

re: LiPo batteries listed on Adafruit. You can use any of these you desire. Adafruit also has power extension cords, so you could position not directly next to the mainboard. If .5m is not long enough

* I also got the little Adafruit lipo charger. I would prefer to not have the circuit board be exposed. I could cover it in hot glue, but I am wondering if there is a better enclosure solution that

Take a look at the LiPo batteries and chargers at Adafruit. The current consumption of the boards is actually quite low.

Now looking at your wiring photo again. You appear to be using a wall power supply / transformer. Is that correct. Please replace this with the AA battery pack or a LiPo cell. Many wall power supplies