Kernel panic when attempting to wake from sleep, after replacing battery

I have a 2011 Macbook Air running 10.7.5. It is no longer under warranty so I just recently replaced the battery myself. With the new battery, kernel_task was hogging 300%+ CPU which I fixed by disabling the kernel extension AppleIntelCPUPowerManagement.kext. Since the battery replacement, my laptop has experienced kernel panic when attempting to wake from sleep mode.

Since display sleep works fine, I am currently circumventing the problem using NoSleep.

Whenever the computer itself sleeps, the keyboard is not backlit, I cannot wake it up and must forcibly restart.

Solutions I've tried so far (all with AC adapter plugged in):

0. restart

1. SMC reset

2. NVRAM/PRAM reset

3. using pmset to set hibernatemode to 0

4. running Repair Disk

5. Software Update

6. SMC/NVRAM/PRAM reset again just in case

Kernel panic error report

panic(cpu 0 caller 0xffffff80002cc5f0): "Error 4 trying to transition CPU 1 to OFF"@/SourceCache/xnu/xnu-1699.32.7/osfmk/i386/acpi.c:179

Backtrace (CPU 0), Frame : Return Address

0xffffff807f003c70 : 0xffffff8000220792

0xffffff807f003cf0 : 0xffffff80002cc5f0

0xffffff807f003d50 : 0xffffff7f8194ebab

0xffffff807f003d80 : 0xffffff7f8195221e

0xffffff807f003da0 : 0xffffff800064f720

0xffffff807f003de0 : 0xffffff80006687f7

0xffffff807f003e20 : 0xffffff800062f506

0xffffff807f003e70 : 0xffffff800063692d

0xffffff807f003eb0 : 0xffffff800062c584

0xffffff807f003ef0 : 0xffffff800062c72b

0xffffff807f003f30 : 0xffffff800063c250

0xffffff807f003f70 : 0xffffff800063c0f4

0xffffff807f003fb0 : 0xffffff8000820057

Kernel Extensions in backtrace:

com.apple.driver.AppleACPIPlatform(1.5)[258FD386-F044-30F3-9EA6-D11CEBE433F8]@0 xffffff7f81944000->0xffffff7f8199cfff

dependency: com.apple.iokit.IOACPIFamily(1.4)[8B3C2276-CD6A-355B-A5F7-A09E4499594B]@0xfffff f7f80af7000

dependency: com.apple.iokit.IOPCIFamily(2.7)[5C23D598-58B2-3204-BC03-BC3C0F00BD32]@0xffffff 7f808a7000

BSD process name corresponding to current thread: kernel_task

Current output of pmset -g (I reverted hibernatemode to 3 since it didn't affect anything)

Active Profiles:

Battery Power -1

AC Power -1*

Currently in use:

standbydelay 4200

standby 0

womp 1

halfdim 1

panicrestart 157680000

hibernatefile /var/vm/sleepimage

networkoversleep 0

disksleep 0

sleep 0

hibernatemode 3

ttyskeepawake 1

displaysleep 10

acwake 0

lidwake 1