Two in one power mod, designed for the Batman Tumbler. Either plug directly into the circuit board (instead of the battery box cable) or retro fit with the new batteries.
 
The builds battery box takes 8xAAA batteries. Our power mod comes with:
 
1 x 12v or 6v, 2.5a DC Mains Adapter
1 x Control box ensuring 6v output limit
1 x main adpater for your country (optional)