Amazon.com: 4PCS NI-MH AAA Rechargeable Battery, 1.2V 550mAh Battery for Panasonic Cordless Phone, HHR-55AAABU Replacement Battery : Health & Household
ANSMANN Battery AAA 550 mAh NiMH 1.2 V (8 pieces) - rechargeable pencil batteries AAA, maxE low self-discharge for years of use : Amazon.nl: Electronics & Photo
VARTA Batteries AAA, rechargeable, pack of 2, Recharge Accu Solar, Akku, 550 mAh Ni-MH, ready to use, designed for solar garden lights: Amazon.co.uk: Electronics & Photo