PC680. Lowest cost option will be to incorporate a battery cut-off switch. Not sure if the Hella 500 amp marine cut-off is still available but that one lets me reset the the ecu easily. Must be careful never to disconnect battery w/engine running.
owners manual : http://www.odysseybattery.com/docume...M-010_0412.pdf
tech manual: http://www.odysseybattery.com/docume...1_0411_000.pdf
Odyssey Ultimizer: http://www.odysseybattery.com/docume...2_0107_000.PDF
Odyssey approved charger: http://www.odysseybattery.com/docume...CT2012_000.pdf
note: Battery Doc doctor is equivalent to Enerwatt 2-4-8
For those that may be charging from generator or have rv or back up batteries for home or cabin the advanced smart charger compliments the Odyssey very well. Look for range of input voltages and frequency accepted.
Battery Doc 2-4-8 /desulfation ($75-120)
Batterminder w/temp probe ($120)
Odyssey Ultimizer 6A ($75)
Various marine grade fully programmable such as Pro Mariner West Marine. Best choice for boaters, rv'ers, of grid