Battery for Siemens A52: Amazon.de: Everything Else
Siemens A52 specs, faq, comparisons
New Eba-510 For Siemens A51, A52, A55, A56,a57,a60,a62,a65,a75,c55,c56,c60,c61,c70, C71,a70 High Quality External Li-ion Battery - Mobile Phone Batteries - AliExpress