Casio Verizon G’zOne COMMANDO 4G LTE User Manual page 18

Warning!
Do not twist the back cover as shown in the
right figure. Doing so can damage the
phone and the back cover.
When inserting the battery, please insert
the battery parallel to the slot surface.
Incorrectly inserting the battery can
damage the terminal contacts.
Do not press hard on the back cover if the tabs are not properly
inserted into the slots of the phone. Doing so may damage the
battery cover tabs.
When using a wrist strap (sold separately), ensure it doesn't get
caught between the back cover and the phone. Incorrect battery
insertion will result in the loss of water resistance.
Do not leave the battery in direct sunlight, or near heat sources
such as an open flame or stove. Doing so may cause the phone to
malfunction or cause a fire from the battery bursting or igniting. Do
not hit or exert excessive impact on the battery, as it may ignite or
break.
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