Amazon.com: 9V Rechargeable Batteries, 1300mAh High Capacity Lithium-ion Long Lasting 9 Volt Batteries with 2 in 1 USB-C Fast Charging Cable for Smoke Alarms,Microphone,Multimeters,Toys,Game Controllers (2 Count)
Defibtech Lifeline or Lifeline AUTO AED Lithium 9V Battery