How do I Know when to Charge the Batteries in my Vantage Lite?
Important Note: Always use the battery charger that came with your device. Any other charger may damage your batteries.
NOTE: If you plan to store the device for a month or more without using it, charge your battery fully then unplug the batteries from the device.
Check your battery status in the Status Display Area

The Battery Status bar graph in the Status Display Area on your screen gives you the following information:
Full Battery: mostly green lines, a few red, a few yellow
Plug in Charger: no green lines at all
Nearly Dead: red lines only (plug in charger now)
Charger Plugged in: blue lines
Low Battery Warning
When the batteries in your device get low, you will hear a Low Battery Warning, similar to the twilight zone. When the Low Battery warning sounds, you can no longer do any storing. The warning will continue to sound at intervals until the batteries are dead. When the batteries are dead, the device powers down completely and you cannot use it.
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You will also see the Low Battery LED blinking on the front of the case. The Low Battery LED is the one on the right.
When you hear the Low Battery warning and/or see the solid Low Battery LED, plug in the battery charger. IMPORTANT! Forcing the charger tip in too far will damage your device! The LED to the left of the Low Battery LED will begin to blink. This LED indicates that your charger is plugged in.
A complete charge, from dead battery to fully-charged battery, will take 9-10 hours. Your charging light/lighting bolt icon will also go to a slow blinking trickle charge.
The default battery will last approximately 6-8 hours with normal use of your device. If you purchased the optional long-life battery, it will give you 20% more working time.