This pack is capable of a huge discharge current, which means high CCA.  Discharge Amps this high will blow most BMS's, so I'm using a small BMS to run a large contactor (Relay).  This way, all the current flows through the contactor.  

I'm going to be starting a military generator, model MEP-802A.  This is a 5kW rated generator with a 2-cylinder diesel engine.  24V  The generator has no batteries inside.  The positive leads inside the generator are insulated to prevent shorting to the frame.