Brother PT 7600 - P-touch EDGE 7600 B/W Thermal Transfer Printer User Manual page 24

Charging the rechargeable battery pack
Insert the plug on the AC adapter cord into the connector on the machine and
insert the AC adapter plug into a standard electrical outlet. While the rechargeable
battery pack is charging, the charging indicator light lights up. Charging time is approx.
3 hours. The charging indicator light turns off when charging is completed.
Charging indicator light
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Replacing the rechargeable battery pack
Replace the rechargeable battery pack when the P-touch labeler can only be used for a
short time even after recharging. A fully charged battery pack will continually print one
full tape cassette at 77 °F. While the replacement period varies depending on the
conditions of use, the rechargeable battery pack will generally need to be replaced after
approximately one year. Be sure to replace it with the specified rechargeable battery
pack (BA-7000).
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