Hello fellow Evlist users,
I have question around charging the battery pack on an EV from a larger
pack of batteries, same voltage. I'm looking to build a stationary solar
array (48v) and charging 12 x 12 volt 133 amp/hr sealed lead acid
batteries, 4 batteries per bank  These are retired but gently used UPS
batteries and I will have about 1200 watts in solar going into a
Morningstar 45 amp solar controller.  I would like to be able to charge my
EV boat pack (http://www.evalbum.com/4767) from this pack, UPS batteries
again, but 4 x 12 volt AGM 133 amp/hr.
My questions for the list:  how do I transfer the charge from the solar
bank to the EV pack?  Can I just use a charge cable directly and the two
banks will equalize?  Or would I need to use a charge controller?   I have
another 45 amp solar controller I could hook from the main battery pack to
the EV pack but I fear the input amps would exceed it?  I remember a while
back someone mentioned they were charging a lawnmower from a truck pack,
wish I could find more info on this.

Thanks in advance for your help and thanks for all the great contributors
on the list, fantastic learning and information!
Dan
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