Note that part of the box is never meant to be open by the customer. Just the section that has the jacks and lights, and for some models the battery. Other models the batteries are in a seperate unit that is the power supply and battery backup.
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Note that part of the box is never meant to be open by the customer. Just the section that has the jacks and lights, and for some models the battery. Other models the batteries are in a seperate unit that is the power supply and battery backup.