Polycom SpectraLink 1725-36165-001 - Manual (Page 60)

User Guide: SpectraLink 8020/8030 Wireless Telephone with SIP
60 1725-36165-001-G.doc
Dual Charger
The Dual Charger is designed to charge the Battery Pack in the
handset while it remains operational and also charge an additional
Battery Pack in the rear charging bay. The handset has charging
priority when both slots are occupied.
Place the handset in the front slot, facing forward. The Battery Pack
alone snaps into the charging bay as shown in the illustration.
The LED indicates the status of the Battery Pack in the rear bay. The
handset displays its charging status as described for the Single
Charger.
When the handset is fully charged or is removed, the Battery Pack
will begin charging.
Note that the time it takes for the Battery Pack to charge will be
lengthened if its charging cycle is interrupted for a handset to charge.