Quote:
Originally Posted by Artric
I must not have read this the first time correctly. So it seems that if I run 12v power to the MCM pin A11, the fan will be powered. Therefore, I can disconnect my taps into the fan wire and connect it there instead.
So MCM pin A11 is where the positive of the 12v should be tapped into, which one should the negative be connected to (and what color is it)?
Thanks so much for your help. Your boat tail project is really coming together! I wish I would have been able to make it up there to see it - hope you're having a great time!
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My 12V power supply's negative output wire references chassis ground. MCM pin A11 = power to the IMA system. It's connected to one leg of the IMA fuse, so if you power it up, you power everything on that fuse: the BCM's current sensor, SoC monitor, battery temperature monitor, and battery fan controls. But the battery fan won't come on unless one of your cells hits 140F, right? If the conditions inside your car are as punishing as I think they are, it's probably better to run the fan full time. What are your cabin temps, anyway?
Talking with Mr. Hansen this weekend, and reading Mr. Mik's posts at IC, lead me to question whether we should be topping off the cells nightly. Ask three different experts, get three different answers. I'll continue charging my well-balanced pack nightly, but I'll set the timer to try to get it no higher than 90% SoC if I can.
What did the NiMH EV1 and RAV4EV's chargers do? Top off every night, or stop at 90%?