Anti_Climax
Posts: 25
Joined: Fri May 20, 2016 12:22 pm
Location: The Valley of the Sun

How to slightly boost on-board charger current draw?

Sun Nov 24, 2019 9:47 am

I've always been a little disappointed in the 29A draw from the FFE (OBD scanner actually shows 28.x amps)

I'm not looking to get 40A or anything, but I'd love to get it up to 30 or 32A. I've reached out to Sefs in hopes there might be some info to share but didn't hear back.

Does anyone have any technical details on the OBC, so I don't have to spend hundreds of dollars on hardware in the mere hope it can be modified the way I want? Been all around Google and can't find much outside Sefs homebrew DC fast charging posts.
2012 Candy Blue FFE with a 33.5kWh battery pack

triangles
Posts: 1069
Joined: Tue Aug 16, 2011 11:40 am
Location: Toledo, Ohio

Re: How to slightly boost on-board charger current draw?

Sun Nov 24, 2019 10:05 am

Assuming it could be done, which I don't think it can, why would you want to go thru all the hassle for just a few more amps of charging?
2014 Blue Candy FFE
http://www.fuelly.com/car/ford/focus/2014/triangles/303811 (since this forum doesn't allow BBcode in sigs)

Anti_Climax
Posts: 25
Joined: Fri May 20, 2016 12:22 pm
Location: The Valley of the Sun

Re: How to slightly boost on-board charger current draw?

Mon Nov 25, 2019 10:09 pm

I suppose it all depends on how much hassle it ends up being.

If I can poke a value into the HW over CAN and get a 10% boost in charging I'll do it. If I have to rip it out and reverse engineer the firmware I wouldn't bother.
2012 Candy Blue FFE with a 33.5kWh battery pack

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