Quote Originally Posted by Martin77 View Post
Thanks Aaronng
The battery im using now is a standard sized battery made by Marshall (probably Exide) with 480 CCA. Its about 2 years old.
I did some measurement just now and the battery is 12.71 V turned off and 14.32 V when the car is turned on. Its takes about 3 cranks from cold today to start it.
The idle slump (I didn't see the rpm but I'm sure I heard it straight after the lock went up) went for a short period of time (fraction of a second or so) but thought its strange as the power consumed like what you mentioned is low. Maybe one of my door actuators is on its way.
Those voltages look okay. If idle fluctuates when you use the door locks, then it should also fluctuate when you turn the lights on and off. Try that out. However, from your battery and alternator voltages, it is fine. Taking 3 cranks to start from cold is normal too.