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Einhell Power X-Change Lithium-Ion High Capacity Battery, Red, 3.0-Amp (4511496) - - Amazon.com
X-change 6800mah Replacement For Einhell Power X-change Battery Compatible With All 18v Einhell Tools Batteries With Led Display - Rechargeable Batteries - AliExpress
Batteries N Accessories BNA-WB-L11222 Power Tool Battery - Li-ion, 10.8V, 1500mAh, Ultra High Capacity - Replacement for Einhell BT-CD 10.8/1 Li Battery - Walmart.com