Delete comment from: Ken Shirriff's blog
Thx for highly enlightening explanation.
My A1343 appears to have failed. By cutting into the wire and applying a voltmeter, I found that it is supplying just 15V when the indicator goes to orange and the battery is simply won't charge.
So, I riffled through my box of old PSUs and found an HP one that says 18.5V (19.6V according to Voltmeter).
I wired it to the magsafe lead (it dropped to 19.5V) and the MacBook is charging fine - now up to 48%.
Clearly, it won't have any of the clever detection characteristics of the A1343.
Do we think that will be alright - esp. when it gets to "fully charged"?
Is 19.5V close enough or might I damage something else?
Thx in anticipation.
Aug 11, 2021, 1:26:24 PM
Posted to Teardown and exploration of Apple's Magsafe connector