I have seen the RCEXL 6,0V (max 7,0V) rated ignitions run successfully on LIFE batteries with no diode, I have also seen 'faulty' ignitions that have been run on LIFE with no diodes. Do i run LIFE on my ignitions - yes on everything! i run a single diode or in the case of DLE 20 ignition module 2 diodes. Have i ever cooked an ignition - no.......