Mouse lags and slow performance MBP13" 2011

[carlsson]

I have a Mac Book Pro 13" mid 2011 that have some really strange issues;

- When moving the cursor, it moves irregularly and lagging.
- The computer is slower than it should be.
- The battery is not charging, the magsafe connector is lit green. Battery status says "0% Battery is normal, Not charging".

Because of this, I replaced the drive with an SSD and I bought a new battery. It worked good for a couple of days, but now the problems are back!?

I have reseted PRAM and SMC to no avail. (How do I *really* know that the SMC is reset?)

Any ideas?

PS. I have started on another drive, and the lagging persist, which indicates this is a hardware related problem. Very strange though...

PPS. I downloaded iStat and the battery panel says as follows:
0% - Calculating
Not Charging
Voltage: 11050 mV
Amperage: 0 mA
Condition: Normal
Cycles: 2
Health: 86%
Design Capacity: 5770 mAh
Current Capacity: 4975 mAh

 

[carlsson]

More update:
I disconnected the battery and then the lagginess was gone.

So, the question is: Is this due to a bad battery or a bad DC board? Is there some way to measure the DC board without removing the logic board etc (I have a multimeter)?

 

[ha1o2surfer]

Just a quick question, are you using the adapter that came with your Mac?

 

[carlsson]

Just a quick question, are you using the adapter that came with your Mac?

Yes. I have tried with two different ones. They both charge my other MBP, so the adapter seems to be fine.

 

[carlsson]

Update:

I have tried with yet another battery, and another DC-board that is working good on another Mac.

It isn't slow anymore, but the battery resist to charge.

So, I guess it's the motherboard then...

Is this a common failure? Should I try anything more?

System Report:
Battery Information:

Model Information:
Serial Number: xxx
Manufacturer: DP
Device Name: bq20z451
Pack Lot Code: 0
PCB Lot Code: 0
Firmware Version: 201
Hardware Revision: 2
Cell Revision: 158
Charge Information:
Charge Remaining (mAh): 3387
Fully Charged: No
Charging: No
Full Charge Capacity (mAh): 5703
Health Information:
Cycle Count: 1
Condition: Normal
Battery Installed: Yes
Amperage (mA): -9
Voltage (mV): 11597

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 16
Wake on AC Change: No
Wake on Clamshell Open: Yes
Wake on LAN: Yes
Current Power Source: Yes
Display Sleep Uses Dim: Yes
PrioritizeNetworkReachabilityOverSleep: 0
Standby Delay: 4200
Standby Enabled: 0
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 16
Wake on AC Change: No
Wake on Clamshell Open: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: No
Standby Delay: 4200
Standby Enabled: 0

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: Yes
ID: 0x0100
Wattage (W): 60
Revision: 0x0000
Family: 0x00ba
Serial Number: 0x003ff897
Charging: No