I have two 2012 model Transit Connects with dead batteries I am working on. We are currently trying to get them charged up. 3 days on the small 110v charger and barely anything. I got it hooked to the 220v charger at another place now. The other van I am told leaks coolant out of the battery pack. I was wondering what can be done to replace the obsolete Johnson/Saft batteries. Something with more reserve would be great 28KWH 330v is what I think is in there now. Anyone?