Fire HD8 run without battery

[sd_dracula]

I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)

I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?

 

[dakalaka]

I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)

I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?
View attachment 5745091

Hello. Yes You can power it thorugh a 5v phone charger but You have to take apart the electroic board of the battery and apply the 5v where the battery terminals were connected to its electronic board. However on my fire HD10 9th generation i encounter a problem: if there is a power outage, i can turn on the tablet afterwards, only if i manually disconnect and reconnect the connector You show in Your photo. i did not find a workarround this. maybe a button press combination would solve the issue but i did not figure it out yet.