ben biles-
MacBook Pro power supply hack
01/24/2017 at 05:17 • 1 commentLast summer my macbook power supply overheated and died. common I here you all say :)
So I went to the junk shop here in Japan and bought the largest 19.5v brick of a power supply I could find
that could deliver some serious power !! I have an i7 15" so I think it needs 85watts
I found 1 x 19.5v 6.15AMPS for equivalant of about 2$
I ordered the magsafe cable ( not that cheap ! about 8$ ) , soldered , heat shrunk and it works very well ..
no massive heat and the mac reports ...
AC Charger Information:
Connected: Yes
ID: 0x0921
Wattage (W): 60
Family: 0x0085
Serial Number: 0x00d240b2
Charging: YesI dont believe thre mac power supply communicate with the laptop at all let alone detect how much power it can deliver.
The magsafe cable has 2 wires. power and ground , and yet it has a load of pins...
The Mac Store replaced my mac power charger , but I'm sticking with this one. it is bigger , but its actually
the same weight and I believe its a lot safer.
I showed the Mac genius's my modified power supply and said it was going to be overall more reliable and safer.
They looked horrified, like they had see a terrorist at work !
Anyway , I highly recommend this basic hack if your like me and have you computer crunching away routing 4 layer boards on hot summer days... save you mac charger for airports and fancy cafes..
buy a brick for every day use !!
PS.. don't blame me if you blow up you mac ! chose your brick wisely :)
My Pages
Things I've Built
digital radio mics [ diversity antenna / adaptive channel ] 2.4ghz
radio mics and reciever 2.4ghz based on Ti's CC8530 and PA with AIC3101 codec 8 channel arduino usb midi mixer
Projects I Like & Follow
Arya
Prof. Fartsparkle
marcus
Henrik Langer
Muphins
Dr. Cockroach
Radu Motisan
Jonas Norling
jvsalatino
GaryGru
Lexcis
ThunderSqueak
Julien
mircemkShare this profile
ShareBits
Thanks for the Skull on #uRADMonitor KIT1!!! Checkout the #Portable environmental monitor , is one of the 10 finalists of Hackaday Prize 2015! :)
Thats a really great project ! was thinking is there nowhere to hide the antenna in the box? I think the smaller it is with the least bits hanging off it the more likely people would actually carry it about ! GPS positioniing and auto data upload on open wifi networks would be cool.. like a global pollution survey !!! you could have the GPS sleep most of the time.. might add to the cost though.. it could grab gps / polution levels and store data until next open wifi access.. or have it connect to you phone and sync from there...
just wondered why you went for the atmega128 , enough computational power and low power enough ? are they for sale ready made yet ?
Yup, this is exactly a global pollution tracker tool. Auto data upload on free wifi is a very cool idea! There will be a GPS too, in the future, although not sure if for this model (it is planned for model C). Also the syncing idea will get implemented, very much like you presented it. The Atmega128 was chosen due to a lot of code I wrote for the AVR platform, and the very little time. Its computational power is sufficient, except for handling the big LCD where speed could be better. Not ready for sale yet, I'm planning an indiegogo campaign to help get there. Hey! this is a very good feedback, please post it on the project's page so I can keep track of it
no prob, i'm interested in making one of these mikes, would be great if you would post a video of the mic working on your camera at some point.. looks like a great design !
Good afternoon Ben and thank you for the like for my Cardboard Computer :-)