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8 x BONAI 600mAh AAA Rechargeable Batteries for Cordless Phones, BT and Panasonic Phones, Solar Garden lights, Led lights, Firestick, etc. 1.2V NiMh Rechargeable Battery AAA Fits for 300mah - 900mah: Amazon.co.uk:
GP ReCyko battery 650mAh AAA (Ideal for Cordless Phone, 2 battery pack | GP Batteries International
Panasonic Original Ni-MH Rechargeable Battery for the Panasonic KX-TG2511ET - KX-TG2512ET & KX-TG2513ET And Other DECT 6.0 Digital Cordless Phone Set : Amazon.co.uk: Electronics & Photo