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Xinyuan-LilyGO / TTGO_TWatch_Library

MIT License
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T-Watch 2020 wont charge batttery #26

Closed bloutix closed 4 years ago

bloutix commented 4 years ago

Hi,

after many test mm ttwatch 2020 battery won't charge?

How to fix that?

thanks

lewisxhe commented 4 years ago

Do you get charging current? How do you judge it cannot be charged?

bloutix commented 4 years ago

I have tried AXP20x samples and battery voltage is around 2.9V and vbus is around 120mA. I have tried to set charge current between 300 and 1000mA with no success. I have tried on usb port, on usb wall charger, i replaced the battery. All without succes. The battery percentage stay at 0% .

De : lewis he notifications@github.com Envoyé : mercredi 8 juillet 2020 16:23 À : Xinyuan-LilyGO/TTGO_TWatch_Library TTGO_TWatch_Library@noreply.github.com Cc : Bloutix bloutix@hotmail.fr; Author author@noreply.github.com Objet : Re: [Xinyuan-LilyGO/TTGO_TWatch_Library] T-Watch 2020 wont charge batttery (#26)

Do you get charging current? How do you judge it cannot be charged?

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lewisxhe commented 4 years ago

@bloutix Please run the AXP202 monitoring example, you can see whether it is normal, if not, please contact customer service

https://github.com/Xinyuan-LilyGO/TTGO_TWatch_Library/blob/master/examples/BasicUnit/AXP20x_ADC/AXP20x_ADC.ino

bloutix commented 4 years ago

The monitoring example display this values: Vbus: 5057.50mV Vbus: stay beetwen 75mA and 131.62mA BATT: 2960.10mV Per: 0%

lewisxhe commented 4 years ago

Can you tell me the complete display? Or give me a photo

bloutix commented 4 years ago

image0000001 (1)

lewisxhe commented 4 years ago

Please update the warehouse to the latest, it contains more detailed information

bloutix commented 4 years ago

IMG_20200710_160042

lewisxhe commented 4 years ago

It looks like the battery is connected. You can unplug the USB, leave the battery in a discharged state, then wait for tens of minutes to let the power drain, and then plug in the USB again to check its charging current

bloutix commented 4 years ago

With the original battery charge is at 0.00mA and the bat voltage decrease slowly (around 2800mV), with another battery charge is 0mA or sometime it's at 2mA with a bat volatge around 3270mV

lewisxhe commented 4 years ago

It seems that the charging part may be damaged, please contact LilyGO sales, this can not be repaired by the software.