Why is it not powering on but has a green light

1. Before powering off the keyboard/trackpad was malfunctioning or unresponsive

2. Green light from power adapter and on the macbook itself but no response

3. Reset SMC Attempt Failed (w/ battery w/o battery)

4. Currently leaving the battery out over night

Description (optional):

1. Macbook indicted to service battery, the magsafe would consistently remain green but charging until I wiggle the cable magnet end

2. The back of the screen is stripping away slightly from the cover

3. Using offbrand Anker battery, EXO 850 SATA 3 SSD, upgraded to 8 ram, using prey much every port

Does this sound like a battery issue because it doesn't even turn on when the battery is unplugged. Possibly the SSD? I also read that someone switched their MacBook MagSafe DC-In Board with success.