erichz wrote: Preferably one that doesn't involve hooking up to a battery tender every week or so?
That's not necessary if the electrical system is functioning properly, e.g. no controller failing to enter its
"sleep mode" (low current draw) or something causing a current drain greater than 50 - 80 milli-amps.
There's been speculations of an inadequately designed Leaf 12V battery charging system, but data to
fully corroborate that have only been anecdotal.