Anonimjones,

I'm pretty sure the charger for the E+ was made by Schauer. The same enclosure is used for several of their Lithium and SLA chargers. I can't find a NiMH version still available. It looks like the pic.

Here's a chargers that should work fine; just a little slower. It comes with it's mating connecter (not the E+ one).
Smart Charger (1.8A) with 3 pins Plug for 36V NiMH / NiCd Pack - UL Listed

I can't find a source for the E+ connector, but it's a trivial matter. The contacts inside the connector mate fine with standard spade lugs. You can connect with the spades for charge testing and then change to more standard suitable connector later.

I see from you phone #, you must be in SoCal. Next time you are near San Diego, come by with your bike and I'll take a look. We could plug it in to my charger. You would get a chance to ride a working E+ and see why they are worth fixing.