Getting started
Backup battery charging
When the deskset loses power with the backup battery installed, the screen indicates the battery status (see table below) and displays Check AC power. When the backup battery is in low battery mode, the screen displays
Low battery. The backup battery is fully charged after 16 hours of continuous charging. See the table on page 82 for battery operating times.
The following table summarizes the battery charge indicators and actions to take.
Battery indicators | Battery status | Action | |
The screen shows | Battery has enough | Charge without | |
Low battery and | charge to be used for a | interruption at least one | |
flashes. |
| short time. | hour. |
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The screen |
| Battery is fully charged. | Keep the backup |
shows | . |
| battery in the battery |
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| compartment to |
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| recharge. |
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