1-6GBEMU01775BATTERY REQUIREMENTcCDo not use a battery that does not meetthe specified capacity. If a battery whichdoes not meet specifications is used, theelectric system could perform poorly orbe overloaded, causing electric systemdamage.For electric start models, choose a batterywhich meets the following specifications.EMU01856Minimum cold cranking amps(CCA/EN): 347 amps at -18°C (-0.4°F)Minimum rated capacity (20HR/IEC):40 A·hEMU01783¯cCA battery cannot be connected to modelsthat do not have a rectifier or RectifierRegulator.Models with only a rectifier installed:15FWC8 Using a maintenance-free battery withthe above models can shorten the lifeof the battery significantly.8 Use caution when connecting acces-sories such as fish finders, as they maybe damaged by high voltage. Install anoptional Rectifier Regulator or useaccessories rated to withstand 18 voltsor higher with the above models. Con-sult your Yamaha dealer for details oninstalling an optional Rectifier Regula-tor.