Amazon.com: Synergy Digital Cordless Phone Batteries, Works with Sony SPP-D900 Cordless Phone, (Ni-CD, 3.6V, 900 mAh), Compatible with Panasonic HHR-P505 Battery, Combo-Pack Includes: 5 x SDCP-C307 Batteries : Electronics
Sony Cycle Energy High Capacity Rechargeable Battery
Amazon.com: Synergy Digital Cordless Phone Batteries, Works with Sony 5877 Cordless Phone, (Ni-CD, 3.6V, 900 mAh), Compatible with Vtech 80-5071-00-00 Battery, Combo-Pack Includes: 5 x SDCP-C308 Batteries : Electronics
900mAh BST37 BST 37 BST-37 Rechargeable Battery for Sony Ericsson J100i K200i K750 D750i T280i V600 K610i W700 Mobile Batteries - AliExpress
Sony Rechargeable Gumstick Battery for Sony MD Walkman - Grade A (NH-10WM) | eBay