Graco Angelcare 1750296 Owner's Manual page 7

Installing Batteries in Nursery Unit
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The Nursery Unit requires four AAA (LR03) alkaline or
rechargeable batteries (not included). Rechargeable batteries
can be used but they will NOT be recharged in the Nursery
Unit by plugging in the AC adapter. They will have to be
removed and recharged in an external charger.
To insert batteries, remove the battery cover on the back of the
unit.
Insert the batteries matching positive (+) to positive (+) and
negative (-) to negative (-) Replace the battery cover.
Replace the battery cover. Replace the batteries when the Low
Battery Indicator turns orange and a rapid ticking is heard. If
the batteries are not replaced, the light will eventually turn red
and the monitor will stop working.
IMPORTANT: Use only the AC adapters included with your
monitor. Do not use these adapters with any other equipment.
Insert the AC adapter into the jack marked "9V" and plug the
adapter into an electrical outlet. Unit will run off of the AC
adapter unless there is a power outage, in which case the unit
will begin using the batteries.
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