1. A motor driven industrial actuator device comprising an enclosure in which a motor, a control module and a drive is housed, said drive being coupled between a motor and said external device being actuated, the device further comprising an input for receiving an external power supply and a battery pack housed within said enclosure, the battery pack being electrically connected to selectively drive said motor and electrically connectable to said external power supply for charging, the control module being configured to receive data representative of a status of said external power supply, receive data representative of a charge state and/or status of said battery pack, and cause said battery pack to be charged from said external power supply when an external power supply is determined to be valid and present and said battery pack requires charging, the device further comprising at least one temperature sensing device associated with said battery pack, the control module being further configured, during charging of the battery pack to:
- receive from said at least one temperature sensing device, data representative of a measured temperature associated with said battery pack;
- compare said measured temperature with a first predetermined threshold temperature; and
- if said measured temperature is greater than said first predetermined threshold temperature, cause a charging current delivered from said external power supply to said battery pack to be reduced to prolong the life of the battery pack.

2. A motor-driven industrial actuator device according to claim 1, wherein if said measured temperature is greater than said first predetermined temperature, the control module is configured to cause a charging current delivered from said external power supply to said battery pack to be reduced until said measured temperature is at or below said first predetermined threshold temperature.
3. A motor-driven actuator device according to claim 1 or claim 2, said battery pack comprising a plurality of secondary lithium/nickel metal hydride/nickel cadmium cells arranged and configured for use in Expiosionproof environments,
4. A motor driven industrial actuator device comprising an enclosure in which a motor, a control module and a drive is housed, said drive being coupled between a motor and said device being actuated, the device further comprising an input for receiving an external power supply and a battery pack housed within said enclosure, said battery pack being electrically connected to selectively drive said motor and electrically connectable to said external power supply for charging, said battery pack comprising a plurality of secondary lithium/nickel metal hydride/nickel cadmium cells arranged and configured for use in Expiosionproof environments.
5. A motor-driven actuator device according to claim 3 or claim 4, further comprising a balanced charging circuit and a circuit configured to provide over voltage, over current and under voltage protection in respect of said battery cells.
6. A motor-driven actuator device according to any of the preceding claims, further comprising at least one heating device associated with said battery

pack, and wherein said controi module is further configured, during charging of said battery pack, to compare said measured temperature with a second predetermined threshold temperature and, if said measured temperature is less than said second predetermined threshold temperature, cause said at least one heating device to be switched on until said measured temperature is at or above said second predetermined threshold temperature.
7. A motor-driven actuator device according to any of the preceding claims, wherein said external power supply is a renewable and/or harvested energy source.
8. A motor-driven actuator according to any of the preceding claims, further comprising ancillary systems.
9. A motor-driven actuator according to claim 8, wherein said ancillary systems comprise sensors and/or transducers connected by wireless or wireless communication means to a remote location for monitoring process conditions in respect of said device, and reporting data representative thereof.
10. A motor-driven actuator according to claim 9, wherein said communication means is only enabled when data is required to be transmitted to or from said remote location.
11 .A motor-driven actuator according to any of claims 8 to 10, wherein said external power supply is configured to run the ancillary systems of said device.
12. A motor-driven actuator device according to any of claims 8 to 10, wherein said external power supply charges said battery pack and said battery pack is configured to run said ancillary systems and to selectively drive said motor.

13. A motor-driven actuator device according to any of the preceding claims,
comprising an integral control module configured to:
control said selective driving of said motor and drive system according to a defined control process; and
receive, from a remote location, data configured to update and/or alter said control process.
14. A motor-driven actuator device according to any of the preceding claims, wherein said control module is configured to communicate a battery pack charge level, battery pack status and/or faults to a user, visually remotely and/or via a network, optionally in the form of a data log.
15. A motor-driven actuator device according to any of the preceding claims, wherein said control module is configurable to operate in a plurality of modes, events and actions of operation in addition to a shutdown mode.
16. A motor-driven actuator device according to claim 15, wherein said control module may be configured to prevent actuator operation should said control module determine a fault condition in said battery pack and/or determine that the charge level of the battery pack is below that able to allow a shutdown event.
17. A motor-driven actuator device according to claim 15, wherein said plurality of modes, events and actions of operation include battery actuation and self contained modes; mains shutdown, battery shutdown and battery actuation events.
18. A motor-driven actuator device according to any of claims 15 to 17, wherein, in a shutdown mode, the control module is configured to move said actuator to any other mid position and/or any other limit of movement.

19. A motor-driven actuator device according to claim 17, wherein in said battery actuation mode, the control module is configured to cause the external power supply to operate the ancillary systems of said actuator device, including causing said battery pack to be charged by said external power supply until it receives a move command and, in response to a said move command, causes said battery pack to cause said actuator to be moved under power from the battery pack, in the form of a battery actuation event, and said battery pack to be discharged.
20. A battery management module for a motor-driven device comprising an enclosure in which a motor and a drive is housed, said drive being coupled between a motor and said device being actuated, the device further comprising an input for receiving an external power supply and a battery pack housed within said enclosure, said battery pack being electrically connected to selectively drive said motor and electrically connectable to said external power supply for charging, the battery management module being configured to receive data representative of a status of said external power supply, receive data representative of a charge state and/or status of said battery pack, and cause said battery pack to be charged from said external power supply when an external power supply is determined to be valid, present and said battery pack requires charging, the device further comprising at least one temperature sensing device associated with said battery pack, the battery management module being further configured, during charging of the battery pack to:

- receive from said at least one temperature sensing device, data representative of a measured temperature associated with said battery pack;
- compare said measured temperature with a first predetermined threshold temperature; and
- if said measured temperature is greater than said first predetermined threshold temperature, cause a charging current delivered from said external power supply to said battery pack to be reduced to prolong the life of the battery pack.
21 .A battery management module according to claim 20, configurable to operate in a selected one of a plurality of modes, events and actions of operation, in addition to a shutdown mode.
22. A battery management module according to claim 21, wherein said modes include battery actuation and self contained modes, mains shutdown, battery shutdown and battery actuation events.
23. A battery management module according to claim 21 or claim 22, wherein said shutdown mode may be selectively configured to move said actuator to any other mid position or any other limit of movement.
24. A battery management module according to any of claims 20 to 23, wherein during charging of said battery pack, said battery management module is configured to receive data representative of a measured life and cell impedance of said battery pack, compare said data with a predetermined profile of performance, and if said measured cell impedance is greater than said predetermined profile, cause the charge voltage thereto to be reduced.

25. A battery management module according to any of claims 20 to 24, wherein during discharge of said battery pack, said battery management module is configured to receive data representative of a measured temperature associated with said battery pack, compare said measured temperature with a predetermined threshold temperature and, if said measured temperature is less than said predetermined threshold temperature, cause the discharge lower voltage limit to be reduced, 28. A battery management module according to any of claims 20 to 25, wherein, during discharge of said battery pack, the battery management module is configured to receive data representative of a measured temperature associated with said battery pack, compare said measured temperature with a predetermined second threshold temperature and, if said measured temperature is less than said predetermined temperature, cause a heating device associated with a said battery pack to be switched on. 27. A battery management module according to any of claims 20 to 26,
configured to detect and determine the validity of said external power supply
and:
(iv) if the external power supply is valid and a valid shutdown command
has been received, cause an external power supply powered shutdown event to be effected; and (v) if the external power supply is not valid or determined to become
invalid, and/or a valid shutdown command has been received and/or a mains shutdown event is underway, switch from the external power supply powered shutdown event to a battery shutdown event causing said battery to be discharged.

28. A battery management module according to any of claims 20 to 27, configured to enable a motor-driven actuator device to operate normally, with the battery pack in either an idle or charge state unless the external power supply is determined to be invalid and/or a valid shutdown command is received, such that an external power supply powered shutdown event or a battery shutdown event is effected accordingly.
29. A battery management module according to any of claims 20 to 28, further configured to:
check the status of said battery pack for any one or more of the following parameters: cell status, rate of degradation and/or service/maintenance requirements;
generate data representative of said one or more parameters; and report said data on a local display means and/or to a remote location via wired or wireless communication means.