HELLO , JUST GOT THIS BIKE LIGHT FOR ITS 2200 LUMEN 30 SEC. BLAST MODE. I PUT 2 ULTRA FIRE PROTECTED 3500 MAH BATTERIES . HOWEVER THE BRIGHTNESS OF THE HIGH MODE , 1500 LUMENS & THE BLAST MODE 2200 LUMENS SEEMS TO BE NEGLIGIBLE. THE BATTERIES COST 80% LESS THAN FENIX,PANASONIC, NITECORE. I HAVE HEARD THE BATTERERY QUALITY IS IMPORTANT BUT THE COST SEEMED PROHIBITIVE. THE ULTRA FIRE HAVE CIRCUIT PROTECTION BUT NO HOLE VENTS AND SUCH. AM I SACRIFICING PERFORMANCE ESPECIALLY WHEN 700 LUMEN BLAST OVER 1500 SHOULD BE SUBSTANTIAL IMPUT PLEASE. THANKS MUCH.!