Ford Focus RS Forum banner

Good deal on stock battery

4K views 37 replies 16 participants last post by  Alpha Dog 
Does it matter how you connect a trickle charger to the battery in regards to the BMS circuit recognizing the extra charge being placed on the battery? I just placed one clamp on the positive terminal of the battery and the other on the negative grounding point to the right of the battery....
Yes it matters. What you've done is correct and how I've had mine connected (using a CTEK plug cable with eyelet rings permanently connected) for years. If you connect direct to the negative (and positive) terminal of the battery you bypass the BMS monitor on the neg terminal and that is potentially not good. The workshop manual covers this.
 
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top