Originally Posted by
dukegrad98
The two batteries are connected to one another, and you should only attach one to a battery tender. Otherwise, at best, you'll just confuse the device and probably defeat the whole purpose.
That said, I use exactly that model -- one side connected to my 850 and the other side connected to my M Coupe. It keeps the batteries in both cars in good shape.
Cheers, John
I was wondering if both batteries would charge with only one battery connector being connected . Also I disconnect both of my batteries when I am away and I was planning on connecting them to the charger separately . Thanks for the help. You provided me with the information I needed.
Hurt
Current project working on the E31 rebuild.
1992 BMW 850i, 1995 E31 840ci, 2008 E90 M3, 2008 750Li
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