Most of my smoke detectors take 9 volt batteries. They now have lithium rechargeable batteries in them. I have other handheld devices that also use 9 volt batteries and they are getting lithium rechargeable batteries in them for now on. No problems at all. Good for the planet and good for me. I can recharge hundreds of times, nice going EBL.
EBL AA Rechargeable Batteries 4 Pack + Individual Cell π 916 Battery Charger - Combo Deal for Rechargeable AA/AAA Ni-MH/Ni-CD Batteries
35 Review
Fireproof Battery Organizer Storage Case: Waterproof & Explosionproof Safe Bag Fits 210+ Batteries - With Tester BT-168, Carrying Container Bag For AA AAA C D 9V Lithium 3V Holders
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Dlyfull LCD Battery Tester - Universal Checker For AA AAA C D 9V CR2032 CR123A & More, 2X AAA Batteries Included
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EBL Smart LCD Charger With 2800MAh Rechargeable AA Batteries 4Pcs & 1100MAh AAA Batteries 4Pcs Combo - High-Performance And Convenient Rechargeable Batteries And Charger Set
28 Review