... .Battery, battery charger, battery wires, internal cables, circuit breaker.4.Manual books of engine, alternator, genset, control ... 4sVoltage modulation≤0.3%Starting systemDc alternatorShort circuit protectionMCCB air switchCooling systemWater coolingAutomatic alarm ... complete operation/maintainance manuals to Engine/Alterntor/ATSWith Circuit BreakerRobust, highly resistant contructionW/ starting motor, ...