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Text excerpt from page 47 (click to view)
If âRechargeâ is displayed and/or â â ï¬ashes after a few telephone calls even if the battery was fully charged, replace the battery with a new Panasonic N4HKGMB00001 (P-P510) battery.
Press the notch on the battery cover ï¬rmly and slide it as indicated by the arrow.
Remove the old battery and wait for a few minutes. Then install the new one.
â¢Insert the battery plug into the connector as shown. â¢Be sure wires are free from being pressed by the battery body or the handset cover. Black Lead Black Lead
â¢If it does not show â â, remove the new battery and wait for 10 minutes; and then insert the battery again. Make sure the handset display shows â â.
Close the cover. Make sure the handset display shows â when you place the handset on the base unit.
Charge the new battery for about 6 hours in order to display the battery strength prompt correctly (p. 11).