Can a Macbook Air work without battery?

Never tried it but a quick search on the apple forums says yes only the processor will be running at half speed. I’d repeat the search with your exact model.

Get thee to the Mac Genius Bar or to your trusted repair specialist. Sounds like you need a new battery.

I“m sorry to high jack this question – but is fluther down at all?
I can’t ask any questions – continue button doesn’t work so I have to ask here! So sorry OP!

Yes @LeavesNoTrace I do need a new battery. But my doubt is, can the old battery be repaired? Should I throw it away without even look at it? maybe just a short-circuit “unblocks” the battery…

The battery is sealed. You would have to open it up, find the bad spot, then put it back together. Much easier to send it in for recycling. The lithium is valuable.

You really don’t want to mess with trying to repair a lithium battery. Just get a new one but don’t recycle the old one until the new one is installed and working. There is always the off chance that the charging circuit is bad.

@RocketGuy I dont mean to actually open the battery; just one try to see if it can be recovered; if not, recycle it. I will buy a new battery nonetheless.