National Prosecuting Authority (NPA) spokesperson Phindi Louw told TimesLIVE that the matter was not put on the court roll "because further investigation still needs to be done by police".
She referred further questions to the police.
Dlamini said because the matter was not put on the court roll, the suspect had been released. "This does not stop our investigations. They are continuing," he said.
Dlamini would not elaborate on how police had found the suspect in possession of Batchelor's cellphone, how the suspect had come to be in possession of the phone, nor how detectives had established that data had been deleted from the device.
Batchelor was gunned down on Monday evening last week in the driveway of his home in Olivedale, Johannesburg, by two men riding a motorbike.
Batchelor's gardener, who was with him at the time, escaped unscathed. His dog, Dakota, was seriously injured in the shooting.