i use a TorqMaster 90 Starter and 2 12 volt batteries(hobbico ) wired in parallel which still give me 12 volts but more amperage for more torque...i can easily start my biggest glow engine a saito 150...anything bigger would be my gassers and those i hand start...for kicks i tried my starting setup on my DL-50 and in turned it over nicely when fully charged