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Amazon.com: Tenergy 9V Batteries 600mAh 10PCS Li-ion 9 Volt Rechargeable Batteries with 10-Slot Li-ion 9V Battery Charger for Smoke Alarm/Detector : Sports & Outdoors
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Amazon.com: 9v Rechargeable Batteries Kratax 850mAh High Capacity 9volt 6F22 Lithium-ion Battery, 8.7V, 1000 Cycles, For Smoke Alarms, Guitar, Walkie Talkies, Toy Remotes, Microphones (Charger not included) : Health & Household
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