This 4Pack of 9V rechargeable batteries has a high capacity of 3800mWh, making them suitable for high drain devices. Made with lithium chemical composition, these block batteries have a voltage of 9V and are designed for sound and vision applications. The pack includes 4 units, providing long-lasting power for various electronic devices.4Pack 9V Rechargeable Battery 3800mWh 9 V High Capacity Lithium Batteries for Smoke Detectors, Microphone, Alarms, Toys, Torches, Medical Devices etc
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