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Battery Installation and Replacement
(TM502G/H Models Only)
TM502G and TM502H Telephony Modems may optionally include one of two types
of Lithium-Ion batteries: a 2.2 Amp-hour (Ah) battery or a 4.4 Ah battery.
For safety and regulatory purposes, batteries are shipped outside of the Telephony
Modem and must be installed.
Identify the battery type using the photos to the left and use the proper installation
procedure:
• TM502G/H 2.2 Ah Battery Installation and Replacement
• TM502G/H 4.4 Ah Battery Installation and Replacement
Note:
The 4.4 Ah battery is longer and has a strap between the guides.