Mitsubishi Electric GOT2000 Series User Manual page 172

Step 5.
After installing the battery to the battery holder of the GOT, close the battery cover until it clicks.
Step 6.
Turn on the GOT.
Step 7.
Check that the battery condition is normal with the utility.
For the details of the battery condition display, refer to the following.
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6.9 Installing the Battery
GOT2000 Series User's Manual (Utility)
Battery Battery cover
Connector