7. Storage
MiR250 Hook User Guide (en) 01/2023 - v.1.2 ©Copyright 2021-2023: Mobile Industrial Robots A/S. 89
CAUTION
If the battery is stored incorrectly or stored for too long, it will reach an
undercharged state where the battery cells may be damaged or the battery shuts
down permanently.
• Always check that the battery is disconnected before storing the robot. If the
battery is connected to the robot, the storage time is reduced significantly.
• Check the battery percentage and charge the battery regularly to ensure it is not
undercharged.
7.3 Inactive battery modes
If the battery is not used for a period of time or the battery percentage is low, it can enter one of
two states where it tries to preserve its state of charge and cannot power the robot:
• If the battery percentage is low (but not critically low) or the battery has been unused for a
period of time, the battery enters Power save mode. You can activate the battery again in two
ways depending on the battery percentage:
• The fastest way to activate a battery in Power save mode is to disconnect the battery from
the robot for 30 seconds, reconnect it to the robot, wait 30 seconds, and then turn on the
robot.
• If disconnecting and reconnecting the battery does not activate the battery, the battery
percentage is too low. To activate the battery, you must either connect a 48V cable charger
directly to the battery while the battery is disconnected from the robot, or you must connect
MiR Cable Charger Lite 48V 3A to the robot's charging interface while the battery is
connected to the robot.
• If the battery percentage is critically low and the battery cells may soon take damage, the
battery enters Deep sleep mode. Depending on how long the battery has been in Deep sleep,
you may be able to revive it using MiR Cable Charger Lite 48V 3A.
To properly troubleshoot any battery issues and for information about the exact time
periods and battery voltages that trigger the transitions between states, see MiR 48V
Battery Technical Guide. This guide provides more detailed information about
determining exactly which state the battery is in and how to safely and securely
restore the battery without damaging the robot or battery.
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