Original Einhell Starter Kit Battery and Charger Power X-Change Volks.Battery, Lithium Ion, 18 V, 4.0 Ah Battery and Quick Charger, Suitable for all Power X-Change Devices : Amazon.de: DIY & Tools
2 Packs Update New 18V 5.2Ah Lithium-Ion AKKU Battery for 4511481 4511437 for Einhell 18V Power X-Change Power Tools Battery - AliExpress
Amazon.com: Einhell Power X-Change 18-Volt 3.0-Ah Lithium-Ion Starter Kit, Includes Battery and Fast Charger : Automotive