basically do NOT run ignitions at lowest possible current levels - some are designed for 4.8 and ideally you use a four cell batt that stays above the 4.8 -such as a good Ni Cad or NiMh.
if you use flashlight batteries or other really low instant current types -you may weaken the ignition
It is amazing how many ignition mfgrs do not really specify type of cell for their stuff - some just say oh a 1000ma is enough -enough what ?
maybe they do have a bulletproof design which will run on 3.8 volts at an instant draw of .0000001 amps
too many of em on the market to make a generalization
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