Battery Saver
While turned on and in standby, any portable two-way radio will consume a small amount of energy from the battery. To reduce this, MOTOTRBO radios have a battery saver feature that puts the radio into a semi-dormant state when there is no activity on the channel. This reduces energy consumption and extends battery life.
| Battery Saver | Operational Time |
|---|---|
| Enabled | 15 hours[1] |
| Disabled | 12 hours[1] |
Battery Saver achieves this by turning the receiver circuitry on and off during periods where there is no traffic on the channel. It therefore possible that a radio will be slow to un-mute (or respond) when a call or message is received at first. For this reason, there is a configurable preamble in all radios - this prepends a transmission with a few milliseconds of null data (960ms by default) allowing the receiving radios to "wake up". On very busy systems, the saving will also not be much since battery saver has little chance to take effect.