Hello Mr. Lang,
Replacing the battery in your car has not only reset your EPS light but it also has temporarily allowed your Electronic Power Steering to begin working again. Replacing the battery cleared the codes in the EPS system. Once the vehicle sees this fault again the EPS light will illuminate and the power steering will stop working.
I hope this helps clear up the confusion on what repairs the vehicle needs.
Best Regards,
Phillina Jacobs
Service Manager