Master contactor should be within 6" of the battery.
The fastback makes rear battery access easy. If I can work back there, most anybody can. The key is to put the tail up on a good stand so the floor is level.
You'll pull the entire baggage compartment shelf and rear bulkhead for annual inspections and major service. Quick checks are easy if you build an access panel in the shelf.
Battery charging lead runs to a point high in the baggage compartment, just behind the passenger seatback. I rarely use it, maybe once or twice a year if I've had the master on a long time during maintenance. A PC925 fits the standard battery tray when installed on its side, serves the W&B function, doesn't run down cranking the big motor, and adds a lot to electronic ignition duration when the alternator dies.
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