Not sure what the first reply was, the moderator or Apple Support anyone..anyone? Was the 800’# listed? If you can get the system to boot long enough for PRAM lol then you don’t have a battery issue. “Lets”? Did he need to open a ticket with you :) Jk. great place to start, lead to #2. but I am a bit confused, how can he attempt PRAM and SMB if the machine won’t even power on.
I think we are leaving out the obvious. In a car, you have an alternator, a battery, and then the most important most forgotten part of most older cars, the COIL THE CAPACITORS that supply steady AMPED UP power to the mainboard. I have seen some pretty easy OR BAD MESSY issues with power on other models of that generation, especially the MacBook whites, which I have to imagine use very similar systems. (I don’t have the teardown in front of me) depending on the power supply, some have 2 capacitors on the power system that I know can both are standard parts and can be ordered at any electrical supply and soldered on if they haven not already cooked as the battery discharged completely into the system.
Im not 100% sure if this is applicable to your specific mainboard(still trying to find the system or revision teardown), but if you are handy with your toolkit, soldering iron and have a steady hand, if the power system capacitors went visually they will probably have gone from round to bulging, and often even without opening the device if they have gone, you often can smell the unhappy smell of burnt electrical components. Apple has varied power supply systems, but I have to assume that the 2007-2012 non retina, removable batteries were not all that different from model to model.
Second response Agree totally BUT if you have the technical prowess check for the smell of electronics and bulging capacitors which can be replaced. HOWEVER, there is/was a known issue with the power supply, and if you can rule out hardware that’s what I would do before a battery, because you are right if its a paperweight, there is no need to spend more on replacement parts for a 10 year old Mac, when you can spend the same money on a loaded 2015.
https://discussions.apple.com/thread/125... , https://discussions.apple.com/thread/134... etc. there seems to be a lot of similar problems. OS itself as we know can damage certain percentages of machines hardware indefinitely, El Capitan and Lion were notorious for kernel panics and cooked hardware, if you fall under this, it may have been some kind of systemic failure of your power supply as they are much smarter than usually thought.
But again, unless your soul is on that computer (just pull the drive), don’t waste the money on a 2008 15 inch replacing the battery before you rule out hardware failure. and if you aren’t good at hardware take it to a repair shop that still does repairs rather than swap-outs, before spending 200 bills, check the capacitors (which I don’t why apple never self contained them in the battery in the first place, the system will get NO power regardless of battery.
BTW 1000 Cycles is impressive.
Here are some links that I have used for similar issues: https://www.youtube.com/watch?v=zu1n-bI2...
to fix your power supply if its frayed or worn, not all that easy.
Here are some about the capacitor problem and other possible Soloutions now that I have done a bit more research, it seems this is very VERY common.
http://forum.notebookreview.com/threads/... (thread with more information.
https://www.youtube.com/watch?v=qY5oba8T... (Bad capacitor replacement)
Just duckduck, and shoot me a message if you need any tips or repair people in your area.
Just found this on the teardown MacBook Pro 15" Unibody Late 2008 and Early 2009 DC-In Board Replacement