A515-51G Battery charge shows to be at 100%, but when unplugged from the AC it instantly shuts off

Vodlex

The touchpad on my Aspire A515-51G stopped working one day and so after I've opened the laptop up and reconnected the touchpad cable it started working again, but then the battery started having problems.
I did have to remove the battery to reconnect the touchpad cable, and now I have to have the power plugged in at all times or else the laptop would shut off instantly and I won't be able to turn it on until I plug in the AC again.
I've installed multiple battery information apps and they all pretty much show the same results, same model number, capacity, ware and charge which was also shows as 100% on the apps.

What I've tried:
-Resetting bios
-Updating bios
-Resetting EC switch
-Uninstalling the battery drivers through device manager
-Running the windows troubleshooter
-installing chipset and serial io drivers
-reconnecting every cable instide the laptop

I don't think the power adapter or something is the cause here because everything was working fine before I opened up the laptop, I'm not inexperienced with working around electronics and I'm fairly sure I didn't break anything, I just removed the battery and reconnected the touchpad cable.

(Thread was edited to add model name to the title)

JackE

1) Search 'cmd' in Windows start menu.
(2) Right click command prompt near top of menu.
(3) Click run as administrator.
(4) Enter 'powercfg /batteryreport' at command prompt.
(5) Then return to the desktop. Open file explorer.
(6) Then search for' battery-report.html' in the c:\windows\system32\ sub-folder. Double-click to open it in the browser.
(7) Post screenshot of the first part of the report if possible that compares design full charge capacity with its remaining full charge capacity.