TETRIX® MAX 12-Volt Rechargeable 2,000 mAh NiMH Battery Pack (W41135)
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 :
12v 2000mAh Ni-MH Battery Pack Replacement for Medical Ceiling Lifts – Batteryhawk, LLC
Kastar 1-Pack AA 12V 2000mAh (10xAA) Ni-MH Battery Pack with Two Wires Lead for DIY - Walmart.com