Support / Your robot / The battery panel Search help
The battery panel
Every number on this panel, what it is measured from, and the two places it will disagree with your robot on purpose. Open it from the map page with the Battery button.
Charge now, and Actually about
Two figures, because while the pack is charging your robot's own gauge cannot be trusted. It reads low and then jumps to 100. On one machine that jump was measured 18 times and grew from 21 points to 35 over two weeks. On one charge the gauge read 60% at the moment the pack was physically full.
Charge now
What the robot itself reports. This is the number the Yarbo app shows you, so the two always agree.
Actually about
What the pack really holds, worked out from pack voltage, the pack's own measured internal resistance and a standard lithium resting curve. Nothing here is taken from the gauge, so there is nothing circular in it. It only appears while charging, because at rest the gauge is fine.
Full in about
How long until the pack is full, from the rate it is actually taking charge. It appears only while charging, and it moves as the charge rate tapers near the top, which every lithium pack does.
The pack figures
Battery temp
The hottest cell right now, not an average. A pack warms while charging and while working hard; it is the outlier that matters.
Pack health
The robot's own estimate of how much of its original capacity the pack still holds. It moves very slowly, over months.
Charge cycles
How many times the robot went to the dock and began charging. The smaller line beneath counts how many of those ran all the way to full.
Cell spread
The gap between the hottest and coolest cell. A small spread is normal. A large and growing one is the first sign of a cell behaving differently from its neighbors.
Pack voltage
The whole pack's terminal voltage. It rises under charge and sags under load, which is exactly why the charge figure above corrects for it.
Current
Positive means power flowing into the pack, so the robot is charging. Negative means it is being used.
The charge graph
Charge over time, ending at now, with the shaded bands marking the stretches when the robot was charging. Read the shape rather than any single point: a run that starts high and ends low is a normal day's work, and a sawtooth is a robot topping up between jobs.
Current cell temperatures
One bar per cell, showing the last temperature each one reported. What you are looking for is not the height of the bars, which rises and falls with work and charging, but whether one bar consistently stands apart from the rest. That is the same story Cell spread tells in a single number.
The two warnings
Sitting on the dock, not charging
Shown when the robot has been on the charger for over fifteen minutes with a job still open and no charge going in. This is a real state a real machine reached: it sat for seventeen minutes at 95% while its owner assumed it was charging. A docked robot is not alarming and a paused plan is not alarming, but together they mean it is not charging and will not start again on its own.
The two charge figures disagree
Shown after a completed charge when the robot's gauge and the measured charge ended up far apart. Usually it means the gauge is drifting rather than that anything is wrong with the pack.
Fahrenheit or Celsius
Open Settings → Display → Temperature and choose °F or °C. This choice is saved in this browser. See Metric units and Celsius.