Thinkpad T430 Battery is jammed and i cant get it out

[HansSchidmer]

So like i was planning to replace my old thinkpad battery with the 9 cell battery but when i turned my thinkpad upside down to inspect the battery before buying it, it looked it got jammed into the casing and i tried to best to get it out like pulling it with force, pushing and pulling, using a mini shovel but all of it is in vain, the battery is still fine tho but its just like jammed and i cant upgrade/replace the battery, as of right now, am using the T430 to write this topic. If you have a solution for this, thank you! (Note : I cant photograph the damage as of right now because i dont have my phone on me but i found a reddit post which have the exact problem as me but even with the reddit post, it doesnt help me so i use the image )

[Bionicman]

You may need to disassemble the mainboard, but before that look at videos replacing motherboards and zoom closely on the plastic behind the body - maybe there is a way to push from the inside out the two plastic teeth.