12 Best Rechargeable AA and AAA Batteries of 2023 | Reviews by Wirecutter
9V 6F22 Ni-MH Battery 9V Rechargeable Battery For Multimeter Smoke Alarm Metal Detector Microphone 9V NiMH Rechargeable Battery - AliExpress
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Amazon.com: Amazon Basics 4-Pack Rechargeable 9 Volt NiMH Batteries, 200 mAh, Long Lasting Power, Recharge up to 1000x Times , Pre-Charged : Health & Household
Amazon.com: Tenergy 9V NiMH Battery, High Capacity 250mAh Rechargeable 9 Volt Batteries for Smoke Detector/Alarms, TENS Unit, Metal Detector, and More (4 Pack) : Automotive