There was a time I use to have a love/hate relationship with the AA battery. They was small, lightweight, easy to carry, and most importantly it powered my beloved Nikon flash units which all together still weight less, and take up less space than a single mono-light strobe head – that was the love. The hate – They didn’t last very long, recycle times were slow, the good ones were expensive, recycle times were slow, they were expensive, recycle times were slow, they were expensive. Yes I know repetitiveness can get old, but so can feeding $19 worth of batteries to each flash every single wedding. No longer though. I have finally found a rechargeable battery that lives up to my demanding standards. Powerex AA Batteries are 2700mAh NiMH sticks of pure power pleasure. My Nikon flashes now charge with authority and recycle times are dramatically improved. The best part is I am no longer throwing away $60 every wedding. I am never going back to disposables again.