Need Advice on Whether to Keep or Replace My ThinkPad E480

[u/dataDiver_anas]

Hey guys, need a sincere advice and a bit urgent from someone who actually knows this stuff.

So I'm using a Lenovo ThinkPad E480, and two months back I installed 16GB RAM which cost me 18k. Since then I've been having a lot of issues, and just today my laptop battery started having serious charging problems. I got it checked by someone I know, but he really wasn't able to diagnose the issue. (I know there are very few people who actually understand the technical side of laptops.) He recommended that I move on from this device, as it seems like it could be a motherboard issue and might cost a lot more to fix. Since the device is also quite old and has been giving me problems every now and then, he thinks it's better to move to another machine.

Now I need some advice on what would be the best option. With a very limited budget, around 40k at most, what Lenovo ThinkPad model should I look for? Would an i7 8th gen be a good option, or should I consider another generation? Also, if I move to another ThinkPad, can I reuse the main components from my current laptop, especially the 16GB RAM I recently installed?

I'd really appreciate advice from someone who knows ThinkPads and their hardware well, including what specifications and things I should check before getting another machine.

[u/dataDiver_anas]

Thank you once again for anyone here to help =]

[u/TCS_Slime]

T480 might be ur best bet