Don't use NiCads.
That is old technology.
You can find 7.2 v Nimh batteries that fit in perfectly on EBay.
1. My Pro Series charger has one battery door on the back.
2. It has two charging ports on the back, one for each battery.
3. I couldn't find a charger with the right connector to plug into the charging ports so I charge the batteries externally. But they last a long time between charges. A minor inconvenience.
A few pics:
Here are the instructions from the Estes website:
https://estesrockets.com/wp-content/uploads/Instructions/002234_COMMAND_CONTROLLER.pdfSo it appears the Pro Series and the NCR are one and the same.
That is old technology.
You can find 7.2 v Nimh batteries that fit in perfectly on EBay.
1. My Pro Series charger has one battery door on the back.
2. It has two charging ports on the back, one for each battery.
3. I couldn't find a charger with the right connector to plug into the charging ports so I charge the batteries externally. But they last a long time between charges. A minor inconvenience.
A few pics:
Here are the instructions from the Estes website:
https://estesrockets.com/wp-content/uploads/Instructions/002234_COMMAND_CONTROLLER.pdfSo it appears the Pro Series and the NCR are one and the same.