TETRIX® MAX 12-Volt Rechargeable 2,000 mAh NiMH Battery Pack (W41135)
10S1P 12v 2000mah Nimh Battery Pack / 12 Volt Nimh Battery for ECOVACS Cleaner
Amazon.com: Tenergy NiMH Battery Pack 12V 2000mAh High Capacity Rechargeable Battery w/Bare Leads Replacement Battery Pack for DIY, Medical Equipments, LED Light Kit, RC Models, Portable 12V DC Devices and More :
10.8 Black Decker Battery | Black Decker 12v | Power Tool | Rechargeable Batteries - New - Aliexpress