What battery life with I get from my tags

Larger batteries have larger capacities and will therefore last longer. However, it is also dependent on pulse rate (faster pulses use up the capacity faster) and pulse length (longer pulses give better range but reduce the capacity more for each pulse). To investigate this use the tag chooser to select a tag, then in the Tag Life link alter pulse rates and pulse lengths.

For tags with two cells, they can be run in parallel (normal) or in series to increase the range. However running in series, at twice the voltage, reduces the battery life substantially.