I'm getting a little fed up with the chargers that came with my Minelabs (E-Trac, Excal, GT.) I've had two fail in the past 6 months, and instead of ordering another I figured there has to be a better option. What is everyone using? All my batteries are now NiMh and I would like to find a charger for them that gives a little better feedback as opposed to the unreliable LED indicator on the Minelab chargers.