For potential buyers, the stock 48v charger that came with my E-Moto Classic has gone bad. I used it about 5 or so times then sent it to PJD once I upgraded my charging system. He got about 10 uses out of it before it broke.
Note that this is only one report and it did get shipped through standard US mail so there could be other culprits besides low manufacturing quality.
Take it for what its worth.