Diagnostics – Robot Mower Internal Charge Sensors
The following describes how to troubleshoot and diagnose the robot mower internal charge sensors.
It is part of our series of robot mower diagnostic and troubleshooting posts.
The charging properties of the mower can be checked when the mower is seated in the charging station.
This is done using the diagnostic screen on the robot mower display panel.
There is an Internal Charge sensor (ICH), and a Charging connection sensor (CH).
The Internal Charge (ICH) indicator has a range 0~4096.
The higher the reading, the more current is being drawn.
When charging, the indicator should show >500.
That is, until the internal battery voltage rises above 26V.
After that, the ICH reading should gradually decrease.
It decreases until the mower is fully charged.
when fully charged, and no more current is required.
The charging connection CH sensor is different.
It shows the connection with the mower and the charging station.
The indicators are:
(1=connected; 0=disconnected)

The ability to troubleshoot the Robot Mower Internal Charge Sensors is a very helpful part of the robot lawn mower diagnostics. And by having diagnostics for your robotic mower, robotzoo is helping to drive the evolution in garden maintenance.
What does robotzoo do?
Our clever devices help households do mundane chores and maintain the floors, windows, pools and lawns.
There’s a robot for almost every chore:
- Automatic battery driven robotic lawnmowers;
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