Einhell Power X-Change PLUS 18-Volt Lithium-Ion Compact Battery, 2.6-Ah - - Amazon.com
Amazon.com : Einhell TE-AG Power X-Change 18-Volt Cordless 4.5-Inch, 8500 RPM Angle Grinder/Cutoff Tool for Grinding and Cutting, Tool Only (Battery + Charger Not Included) : Tools & Home Improvement
Einhell Power X-Change Lithium-Ion High Capacity Battery, Red, 3.0-Amp (4511496) - - Amazon.com