interesting...yet still confusion. First off, it is ILLEGAL for ANY BATTERY manufacturer to void warranty if the battery is put with someone else's charger...so this arguement should go up in smoke. Secondly, based on experience, how many times during a service call does problem occur with the battery or the charger? Most times, I find the problem is with the battery and not the charger. Thirdly, selling "product" bring in decent margins and revenues however what I do know is one makes their money on service...why don't truck dealers take the opportunity to learn to service the battery and charger and ultimately help their bottom line profits? Service is a huge money generating business...not sure why more truck dealers are not taking advantage of it!!!!