AKKU 11199: Battery for Siemens, A50 - C45, Li-Po, 950 mAh at reichelt elektronik
Mobile Phone Battery C 45 M 50 MT 50 A 50 950mAh for SIEMENS 1168 2118 3118 C45 M50 MT50 A50| | - AliExpress
Replacement battery suitable for Siemens A50 C45 M50 MT50 Polarcell with Mungoo display cleaning cloth: Amazon.de: Electronics & Photo
Synergy Digital Home Security Camera Battery, Works with Netgear VMA5400-10000S Home Security Camera, (Li-ion, 3.85V, 4800mAh) Ultra High Capacity, Compatible with Arlo 308-10069-01, A-4a Battery - Walmart.com
Battery N4701-a130 For Siemens A50 / C45 / C50 / M45 / M46 / M50 / Mt50 ( N4701a130 N4701 A130 N 4701 A 130 ) - Mobile Phone Batteries - AliExpress
File:Siemens mobile phones A50 B-Free 02.jpg - Wikimedia Commons
DreamBox / Supported Phone Models
Siemens A50 - Wikipedia
950mah Battery For Siemens 1168 2118 3118 C45 M50 Mt50 A50 Battery - Mobile Phone Batteries - AliExpress