An apparatus for providing a low power indicator comprising: one or more light emitting diodes, LEDs, configured to be coupled to a power supply and to generate illumination; a first switch coupled in series with the one or more LEDs, the first switch configured to selectively activate and deactivate the one or more LEDs based on whether the first switch is turned on or off; a voltage divider configured to be coupled to the power supply, the voltage divider comprising first and second resistors (310, 312) coupled in series; a first capacitor coupled between (i) ground and (ii) a node between the first and second resistors, the first capacitor configured to be charged or discharged based on a voltage generated between the first and second resistors; and a low power detector configured to sense a low power condition of the power supply, the low power detector also configured to repeatedly turn the first switch on and off in response to the low power condition to cause the one or more LEDs to blink, wherein the low power detector is configured to turn the first switch on and off at a given rate, the apparatus characterised in that: the given rate increases as the power supply is depleted; and in that the apparatus further comprises a second switch coupled between the voltage divider and ground, wherein the second switch when turned on is configured to allow current to flow through the first and second resistors and through the second switch, and wherein the second switch when turned off is configured to allow current to flow through the first resistor and the first capacitor but not through the second resistor; an output of the low power detector is coupled to a gate of the first switch and to a third resistor coupled to a gate of the second switch; and a second capacitor is coupled between ground and a node between the third resistor and the gate of the second switch. one or more light emitting diodes, LEDs, configured to be coupled to a power supply and to generate illumination; a first switch coupled in series with the one or more LEDs, the first switch configured to selectively activate and deactivate the one or more LEDs based on whether the first switch is turned on or off; a voltage divider configured to be coupled to the power supply, the voltage divider comprising first and second resistors (310, 312) coupled in series; a first capacitor coupled between (i) ground and (ii) a node between the first and second resistors, the first capacitor configured to be charged or discharged based on a voltage generated between the first and second resistors; and a low power detector configured to sense a low power condition of the power supply, the low power detector also configured to repeatedly turn the first switch on and off in response to the low power condition to cause the one or more LEDs to blink, wherein the low power detector is configured to turn the first switch on and off at a given rate, the apparatus characterised in that: the given rate increases as the power supply is depleted; and in that the apparatus further comprises a second switch coupled between the voltage divider and ground, wherein the second switch when turned on is configured to allow current to flow through the first and second resistors and through the second switch, and wherein the second switch when turned off is configured to allow current to flow through the first resistor and the first capacitor but not through the second resistor; an output of the low power detector is coupled to a gate of the first switch and to a third resistor coupled to a gate of the second switch; and a second capacitor is coupled between ground and a node between the third resistor and the gate of the second switch. the given rate increases as the power supply is depleted; and in that the apparatus further comprises a second switch coupled between the voltage divider and ground, wherein the second switch when turned on is configured to allow current to flow through the first and second resistors and through the second switch, and wherein the second switch when turned off is configured to allow current to flow through the first resistor and the first capacitor but not through the second resistor; an output of the low power detector is coupled to a gate of the first switch and to a third resistor coupled to a gate of the second switch; and a second capacitor is coupled between ground and a node between the third resistor and the gate of the second switch.