Amazon.com: Synergy Digital Cordless Phone Batteries and Charger, Compatible with Siemens GIGASET 4200 Cordless Phone Charger Replacement of 4 AA NiMH 2800mAh Rechargeable Batteries, with Charger : Electronics
2 Pcs Batteries Rechargeable Battery for Siemens Gigaset Cordless IP Phone | eBay