Tablet battery won't charge via Keyboard
Hi, I have a surface book 2 15", it's 2.5 years old, it's heavily used, the keyboard battery won't charge, stays at 0%. (the Tablet battery is fine)
I understand the keyboard Battery may have died of age, if that's the case, I'll replace it.
but my problem is that the Tablet battery won't charge if I plug the charger in the keyboard port, though the indicator light comes on, the percentage won't increase.
it'll charge only if I eject the Tablet and plug it in directly,
My question is, Is it because of the faulty keyboard Battery or charger or something wrong with the keyboard base?
will replacing the keyboard battery fix it?