How do I Remove the Battery Door and/or Install a New Battery Pack in my Vanguard 2/Plus?
WARNING! UNPLUG YOUR BATTERY CHARGER!
Removing the Battery Door: Gently turn the device face down. Using a small phillips screwdriver, remove the 2 small screws in the battery door.
Next, pull down on the two battery door tabs to remove the door.
VERY IMPORTANT! When the door is off, take note which side the red wire is closest to --it will either be closest to the battery pack or the top of the Vanguard. Pinch these two wires just above the white connector and gently rock the connector back and forth while lifting to unplug the connector.
Installing a New Battery Pack: Slip the new battery into the tray and plug in the connector very carefully, making sure the red wire is still closest to the correct side. WARNING! If the connector is installed backward, it will cause damage to the device and the Vantage will have to be mailed in to be serviced.
Re-install the battery door.
NOTE: If you did not install your battery as soon as you received it, it may be necessary to charge your battery overnight to get a full day's use out of it.