Amazon.com: Synergy Digital Battery Compatible for Panasonic HHR-4DPA/2B Cordless Phone Battery Ni-MH, 1.2 Volt, 1000 mAh - Ultra Hi-Capacity - Replacement of Pack of 4 AAA Batteries : Electronics
Amazon.com: Panasonic HHR-75AAA/B-4 Ni-MH Rechargeable Battery for Cordless Phones, 700 mAh (Pack of 2) : Electronics
MAINTENANCE - What battery should I use in my Panasonic Cordless Phone?
Amazon.com: Kastar Battery Replacement for Panasonic N4HKGMA00001 Cordless Phone Battery and Panasonic P-P511, HHR-P511, Type 24 Rechargeable Battery : Electronics
2PCS/lot Ni CD rechargeable battery for Panasonic electric shaver ES4001 ES4025 ES4035 ES365 ES3042 ES4027 ES4105 ES727 ES3050|rechargeable battery| battery forbattery rechargeable - AliExpress