BatteryMon Display |

Graph: The battery charge level is graphed in real time. The percentage charge level (0-100%) is shown on the vertical (Y) axis. The sampling times are shown on the horizontal (X) axis. Three lines are shown on the graph. The black line shows the current charge level. The blue line shows the trend line based on the extrapolated samples. The red line shows a comparison to a battery system with a particular life span.

There is also some extra information displayed in the top left of the graph relating to the rate the systems batteries are currently discharging.

Capacity: Displays the current total of all batteries capacities vs. the total of those batteries fully charged capacity.

Capacity drop: Displays the total drop in charge for all batteries since the Start button was pressed.

Discharge rate/Charge rate displays the total rate of change of charge for all batteries.

To the left of the graph the follow information is displayed.

Status: Indicates if BatteryMon is running (collecting samples) or stopped.

A/C Power: Indicates the current power source. Battery (Bat) or mains A/C power (AC)

Battery Status: This is the battery status as reported by the battery. Possible values are high, low, critical, charging. “NoBat” will be displayed if there battery to be monitored.

% Life left: The charge % in the battery, as reported by the battery. Can be between 0% and 100%. Under Windows the battery can only report integer values.

Time Left: How much time is left before the computer runs out of power. This information is normally collected from the battery itself, but if the battery pack can’t supply this information it is estimated in the BatteryMon software.

Time Total: How long the battery will last if it is fully charged. This information is normally collected from the battery itself, but if the battery pack can’t supply this information it is estimated in the BatteryMon software.

Time on Battery: How long the computer has been running battery power. This is measured from the last time mains power was disconnected or from the point in time BatteryMon started if the computer was already on battery power at that time.

Num Samples: The number of times BatteryMon has sampled the battery information.

Run time: How long has the sampling session been running for. The format is HH:MM:SS

Discharge rate: The current discharge rate. Total battery life in hours. This is calculated by looking at the rate of discharge over a period of time and extrapolating the discharge rate to a value of 0% charge. It is this value that is represented on the graph by the blue line. When only a few samples have been made the extrapolation is not very accurate and the value can vary widely. Are more samples are made the value becomes more accurate.

Comparison Rate: The user can select a baseline discharge rate to compare to the actual discharge rate. The rate selected here is displayed with a red line on the graph.