Upgrade from the old L10 controller to the E-Port controller
You could just change your battery again if your old L10 controller is in good condition; this is the cheapest and best option, this will work for 70 percent of the old controller, but if this does not work then your old controller is damaged, and you will not be able to return the battery kit once you have tried to charge it.
A new L 10 battery replacement kit costs $75.00 each Inc. GST and Postage and Handling.
You could upgrade to the new E-Port controller and wall plate by OZRoll.
You will need an E-Port controller, costs $125 each.
1 Replacement wall plate $9.50, this wall plate is smaller than your existing L10 wall plate, and it will not cover both of the existing screw holes that held your old L10 wall plate.
OR
1 E-Port Wall plate Conversion Kit $18.00. This conversion kit uses the existing fixing points that secured the old L10 wall plate.
Your old L10 charger is not recommended to charge the new E-Port controller.
This is a simple job, unscrew the old wall plate, pull of the 2 bullet clips that are fixed to the 2 wires, and push the 2 clips onto the new wall plate, and screw the new wall plate back to the wall.