Fuel engine starting battery pack and fuel engine

The utility model relates to a fuel engine starting battery pack and a fuel engine, and relates to the technical field of batteries. The fuel engine starting battery pack comprises a battery module and a super capacitor module connected with the battery module in parallel, the battery module comprises at least one single battery, the super capacitor module comprises at least one super capacitor, and a parallel circuit of the battery module is connected with a main control relay in series. The battery module and the super capacitor module are connected in parallel, the requirement for outputting large starting current can be met, the service life of the starting battery pack can be prolonged, the circuit is protected through the main control relay, and the leakage current of the starting battery pack is reduced as much as possible. 本申请涉及一种燃油发动机起动电池组及燃油发动机，涉及电池技术领域。一种燃油发动机起动电池组包括电池模组、与所述电池模组并联的超级电容模组，所述电池模组包括至少一个单体电池，所述超级电容模组包括至少一个超级电容，所述电池模组的并联电路中串联有主控制继电器。本申请通过将电池模组与超级电容模组并联，能够满足输出较大起动电流的需求，还有利于延长起动电池组的使用寿命，并