The ProVari was the first one I got with the real batteries also. I ordered 2 batteries and a charger, and put one inside the PV and one on the charger. As soon as the one on the charger was charged, I put the other one on to charge. I did not want to wait another moment and if I lessened the life of a $10 battery that will last me a year anyway, then so be it!
You will get there, over time you will find a deal on another battery and get one. Just be patient, a sale will come and you can be in battery heaven