SMC does not recognize battery, battery charge indi. lights dont work!

SMC does not recognize battery, battery charge indi. lights dont work!

I have similar problem. Im my case, if i bypass the SMC check at booting, the system runs fine on battery, although it does not recognize the battery, fan runs on full speed, and megasafe led on wall charger connector stays off the whole time. Which is normal considering SMC controls both battery management and fan speed. In this state, computer runs on battery without the charger connected.

Asked by: Guest | Views: 189

Total answers/comments: 6

Comments display order:

bert [Entry]

"I'd start by replacing the DC board if you plan to fix this your self.

Otherwise you may want to go to the Apple Store to get this serviced"

bert [Entry]

I had the same issue and actually found that dmit2k's comment got me up and running again. I first took it to the Apple store and they said it was a goner, needed new logic board and wouldn't be covered by a flat rate repair because of the liquid damage. I went home, found dmit2k's comment, disconnected the LED indicator light module, and the machine has worked fine since though it doesn't always go to sleep if I close it.

bert [Entry]

I just wanted to chime in to say I was also having the same problems - battery not detected, frequent fans coming on/system process taking up 95% of CPU, general strange booting behaviour - and unhooking the battery indicator from the mainboard fixed the problem straight away. Thank you!

bert [Entry]

I had similar issue, green light but battery not charging. So I took it to apple store, he tried resetting SMC, no luck, so he did a diagnostic and found that the battery was in good condition, so he took the laptop in the back room and it works now... he took the back cover off as he mentioned to us that there was something that spill in the laptop!!! but don't know what he did. No charge for approx 1 hour of troubleshooting!!!!

bert [Entry]

"Hey Alex,

I just updated my macbook pro 2008, to el capitan, and everything was fine for a few days, till yesterday when exactly what you mention started happening. Although now that I read through the symtpoms you've mentioned, I do recall odd fan behaviour, that would happen on and off, but never thought much of , since everything else was working fine.

Have any of the above mentioned solutions worked for you?

Because I too am out of warranty, with the same led flash 5 times, battery not charging, sleep indicator blinks few times on startup.

Any help would be fantastic, because I am about to attempt one or more of these fixes mentioned here.

Fingers crossed.

Thanks in advance

Nigel R"

bert [Entry]

The green signal comes on for a second and goes off. Help me.