Magsafe not charging consistently. Is it the battery or the port?
Connecting to the adapter, I often have to wiggle or re-position the magsafe several times to get it to charge. I've tried two adapters with the same result. I know the battery is old (1400+ cycles) but will replacing the battery fix this? Or might it be a problem with the port?
Related question: If it's the port, I have a 13" from the same era. Can I just take the port from that one and swap them? Are they compatible?