Mitsubishi Q00JCPU User Manual page 8

[Startup and Maintenance Precautions]
Do not touch the terminals while power is on.
Doing so could cause shock or erroneous operation.
Correctly connect the battery.
Also, do not charge, disassemble, heat, place in fire, short circuit, or solder the battery.
Mishandling of battery can cause overheating or cracks which could result in injury and fires.
Switch off all phases of the externally supplied power used in the system when cleaning the module
or retightening the terminal or module mounting screws.
Not doing so could result in electric shock.
Undertightening of terminal screws can cause a short circuit or malfunction.
Overtightening of screws can cause damages to the screws and/or the module, resulting in fallout,
short circuits, or malfunction.
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