Drop-in and charge the battery for your TD 2300 printers. Holds a single battery with the potential to expand up to 5 interlocking bays to charge from a single power source. Requires PA-AD-005 AC Adapter (sold separately.) For use with PA-BT-004 Li-ion Rechargeable Battery and TD-2320D, TD-2350D and TD-2350DSA direct thermal desktop printers.