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 :
Battery 3Ah/14,4V Tools - Ni-Mh - Compatible
TEFAL TEFAL AIR FORCE EXTREME LITHIUM TY8841HH
Bosch Aku vysávač ni-mh na li-ion/The cordless vacuum cleaner ni-mh conversion to li-ion - YouTube