I know that the MagSafe 1 charger works as the light illuminates when I use my older 2012 MacBook Pro and 2010 MacBook Air.

Is the light supposed to illuminate when using the adapter or is my adapter defective? I tried to clean both the MagSafe 1 plug and both sides of the adapter and the MagSafe port with isopropyl alcohol but that didn't seem to fix things.

⟐ Answered March 03, 2026 at 17:36 MST

⟐ Commented January 02, 2026 at 10:45 MST

I have a Magsafe 85W with a broken T connector, and I have a Magsafe 85W with an L connector but a failing power supply.

So I want to replace the broken T connector with my other L connector.

It would be ok to join both cables in the same order, the inner cable of the T power supply, with the inner cable from the L connector, and the outside cable with the outside cable from the L connector?

Thank you!

Esteban

⟐ Answered April 28, 2025 at 17:31 MST

Happened over night, worked fine yestreday.

No green light on the adapter plug, only blinking between green and orange. what does that mean?

⟐ Commented January 03, 2025 at 16:49 MST

I can't figure out what is to blame here; is it the connector from the cable at fault, or is it the connector inside the laptop, or the battery?

Also now, the connector only charges the battery if I fiddle with its position a bit.

Any input into the matter would be much appreciated:

Thank you!

oh and does anyone know how I can safely dismantle the MagSafe connector? I'd like to check the wiring, before buying a new charger.

⟐ Commented August 05, 2024 at 14:35 MST

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Charger: 60W MBP MagSafe Adapter (A1344)

Laptop: MBP late-2011 13" A1278

Story: I plugged it into an old outlet in an old hotel in India, and I wake up to find the charger not working anywhere. Other chargers work okay and SMC reset done. CoconutBattery says the battery is okay. Culprit is the charger.

Diagnostics: I checked the primary fuse (the brown box near the AC input - apparently a "4A time-delay type fuse", and it had no continuity. With so much glue and padding and shielding everywhere, I really didn't risk probing much further. No swollen or blown capacitors.

Troubleshooting: Here's the fun part, I got some thick wire and bypassed the primary fuse by soldering it to the existing little prongs on the opposite side of the PCB. It kind of worked... I can get a green light, but it makes a buzzing noise sometimes depending on the position of the L-shaped DC laptop port.

Current status: The green light turns on. However the MBP isn't charging normally nor holding its charge. Occasionally I'll get the DC end in the some kind of position where an orange light comes but it's rare.

I attached a screenshot of iStatMenu's power stats. I don't really have a reference point, but I'm pretty sure that DC-In should be more than 0.08 amps. Though there are some intermittent spikes when charger is wiggled at the laptop-side and it buzzes. I found that by wiggling the DC charger end (which connects to the laptop), the buzzing will start and stop (kind of like when a your old earbuds don't get sound unless they're in the right position). Which is odd because that part of the charging cord was fine before and I didn't suspect any problems there, but I could be wrong. (see video and photos attached for demonstration).

Hey after some random wiggling - I have an orange light! Not sure if its actually pulling enough voltage/amps etc. though. Hard to reproduce. Yes okay I can get an orange charging light and get it to pull ~2a and charge but only when it's buzzing. Something's weird. Without the buzzing - there's not adequate charge.

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Helpful info

• Postmortem A1344 Charger
• Similar magsafe teardown

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⟐ Answer accepted August 04, 2024 at 10:21 MST

⟐ Commented August 16, 2023 at 19:20 MST

Its adapter suddenly stopped doing half of the work: it can maintain the battery at its percentage, but not increase its charge.

The OS icon says "Battery is not charging", with a lightning logo. The LED is off.

The same Macbook with a different adapter works perfectly. The same adapter on another Macbook displays the same behavior.

Thus it seems pretty clear that this is specific to the adapter.

Any idea what is wrong and how to fix it ?

Thanks in advance

SOLUTION : I replaced the cable and now it's working

⟐ Commented May 29, 2023 at 12:28 MST

⟐ Answered February 02, 2023 at 12:26 MST

⟐ Answer accepted November 10, 2022 at 6:14 MST

(because all my work friends uses new MS2 gear, but i use older MS1 MBP.)

so anyway, i heard MS1's output voltage is ~16.4v(maybe max 18v?), but MS2 is ~20v.

i tried uses not-their-own power adapter of other things, 10~15% of over voltage is not a problem so far. but this time is over 20% difference. i'm not sure about working well this time too.

assume i can make magnet 5 pin connector thingy, could i use 20v pin to pin? should i use a regulator like 7818? or couple of diodes?

⟐ Commented December 11, 2021 at 13:28 MST

⟐ Answered November 18, 2021 at 7:58 MST

Luis from Germany,

I'm working on a genuine Apple MagSafe 45W PA-1450 charger as it won't charge by system anymore after 4 repairs on the same cord. I have disassembled it once again, I'm getting the right voltage on the output of the PCB.

A visual inspection shows that the big resistor of the high voltage section and the capacitor next to it (see pics) where damaged.

Does any one have the teardown / BOM / PCB component values of these 2 components?

The rest of the components seem to be good. I have the time and the right tools to fix this charger: solder smd, measure (100Mhz scope/multimeter/hot-air/etc.)

Big thanks in advance!

⟐ Commented March 30, 2021 at 16:26 MST

⟐ Commented March 17, 2021 at 7:46 MST

⟐ Commented February 11, 2021 at 20:10 MST

⟐ Commented November 19, 2020 at 13:22 MST

Try some superglue? Try to purchase a replacement?

⟐ Answer edited April 18, 2020 at 16:35 MST

I’m on my way to best buy, where I’ll pick up a new one because I can’t work without the charger, but I’ll return that if I can get this one running again.

Any help would be wonderful.

Be healthy!

⟐ Answered April 01, 2020 at 10:10 MST

⟐ Commented March 31, 2020 at 16:36 MST

At first I though its my pc problem, did SMC reset but still nothing. Tried with my girlfriend pc, its the same. Its not charging at all only holds the power.

Does anyone got the same problem and what should I do with charger?

https://discussions.apple.com/servlet/Ji...

https://www.dropbox.com/s/e39s5ccw3wl4xx...

Thats the results I am getting, not sure if the picture was uploaded correctly..

⟐ Commented September 28, 2019 at 8:16 MST