This is Novak's replacement GTB/Havoc Pro 1S/4-Cell Heat Sink Plate (#S4CPL). This versatile plate is compatible with Novak's GTBs (#1710 & #1711), Havoc Pro ESC (#1735) and SLYDR ESC (#1712), and is perfect for converting these ESCs to 4-cell Ni-MH, 1S Li-Po applications or where size and weight constraints are common.
The 4-Cell Plate is also the direct replacement for Novak's GTB 4-Cell ESCs (#1714 & #1715).
This conversion requires the removal of the ESC's original heat sink and gap pad. Do not use a sharp object to pry off the heat sink. The PCB's MOSFETs may be potentially damaged, which will void the warranty.