not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings the invention is capable of other embodiments and of being practiced or of being carried out in various ways fig1 is a perspective view of a vehicle 10 including a transport refrigeration system 12 the vehicle 10 includes a tractor 14 and trailer 16 goods are placed in the trailer 16 for transport the transport refrigeration system 12 is coupled to the front of the trailer 16 and serves to maintain the interior of the trailer 16 at a temperature with additional reference to fig2 the transport refrigeration system 12 includes a diesel engine 18 an engine starter 20 a battery 22 and a refrigeration system 24 which includes a compressor not shown condenser not shown evaporator not shown and one or more fans not shown in the illustrated embodiment an engine starter system 26 is shown as part of a transport refrigeration system 12 on a trailer 16 but can also be used on other cargo transportation systems such as rail cars shipping containers trucks and the like in addition the engine starter system 26 can be used with any internal combustion engine not limited to transport refrigeration applications fig2 is a schematic view of the engine starter system 26 the engine starter 20 is electrically coupled to the battery 22 a crank speed sensor 28 is coupled to the engine starter 20 and is operable to measure the crank speed of the engine starter 20 a voltage monitor 30 is electrically coupled to the battery 22 and is.