1. When the battery is running low on the G3 GPS sensor the red battery indicator light starts flashing.
2. RS800 Running Computer also displays Low battery at the start of the exercise recording.
3. ProTrainer 5 training software informs the battery voltage level once you have your RS800 connected to ProTrainer 5.
We recommend you use a lithium battery or rechargeable NiMH batery in temperatures 5°C and below. Cold temperature decreases the life of an alkaline battery.