Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Torque PID for Ford Focus
View Single Post
Old 11-26-2016, 06:29 AM   #54
stefcio007
Focus Enthusiast
 
stefcio007's Avatar
 
Join Date: Apr 2016
Fan#: 300826
Location: Victoria, Australia, Australia
What I Drive: [AUS] [DIESEL] 2011 MK3 TDCI

Posts: 409
Points 1,271, Level 19
Points: 1,271, Level: 19 Points: 1,271, Level: 19 Points: 1,271, Level: 19
Level Up 72% Completed
Level up: 72% Level up: 72% Level up: 72%
Forum Activity 5%
Activity: 5% Activity: 5% Activity: 5%
FF Reputation: 2 stefcio007 Good Standing Member
Buy-Sell-Trade Rating: (0)
Quote:
Originally Posted by millinnium View Post
Hi there, try a free pc app called FORscan and see if it read the battery charge. I am quite sure it should work
I gave up using the % charge equation. Using the battery current equation you can see how much the alternator is charging the battery. When the battery is nearly full (probably above 80%) it appears to charge around 1-2 Amps (Trickle charge?). Just after starting it will charge the battery 10-20 A depending on how well the battery was charged beforehand. Anything around the 1-2 A when turning off the car is good in my opinion.

For short trips where the battery doesn't charge much between starts I've had the current hover around 15 A and then go to 10 A, then slowly but surely start to reach 1-2 A.

If you're really concerned about the battery or do lots of short trips, just put it on the charger one night a week. Otherwise the alternator does its job.
__________________
DIRTY DIESEL DRIVER
Australia
stefcio007 is offline  
    Reply With Quote