Amazon.com Product Description
This high-capacity B-770 NiCad cordless phone replacement battery by Battery-Biz is designed to meet or exceed the performance specifications set by Panasonic's P-P511 battery. Compatible with Panasonic KX-TG2227 cordless phones, this battery pack is backed by a one-year warranty against defects. Each package contains one replacement battery pack.
Product Description:
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Hi-Capacity NiCad Cordless Phone Battery for Panasonic KX-TG2227 (P-P511)