Vandersteen Quatro / Model 5 Crossovers

In an effort to bypass the issue of replacing batteries in the Quatro and Model 5 crossovers,would utilizing an external crossover such as those from Behringer,Bryston(10b),and others work effectively? I'd consider moving up to one of these speakers,but don't want the hassle of dealing with the batteries.Anybody gone this route and pleased with the results.