The electrolytes usually make the drink taste like a$$. Why not just take capsules with the electrolytes (like the ones from Hammer: Amazon.com: Hammer Nutrition Endurolytes- Electrolyte Replacement Supplement-Dietary Supplement, 120 Count: Sports & Outdoors) and drink whatever sweetened beverage you like for the carbs. That would have to taste better, no?

One problem I can see with the Hammer capsules is they have a fairly significant dosage of magnesium in them which plays havoc with my, umm, uh, "solid waste elimination processes". If I drink mineral water in Europe, the only sights I get to see are the bathroom tiles. Does anyone use electrolyte tablets or capsules with mostly sodium and potassium and very little or no magnesium. I would appreciate a recommendation.