Ive googled and googled and googled and got nothing hopefully some of you can help me out. I bought an SB-25 a few months ago and it worked fantastic, but just recently it started to fail on me. I put Brand new batterys in and at first it'll Charge up and fire, then instead of making a high pitched sound it makes a low "not enough power" sound and then after 20-30seconds the red light will come on and it'll be ready to fire again. ive tried this with a few sets of brand new batterys so its not a battery issue. is it possible that the capacitor is going out?