Sony 9V 450mAh Rechargeable Battery

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Specification:

Brand: Sony
Type: Rechargeable 9V battery (Ni-MH)
Voltage: 9 V
Capacity: 450 mAh
Recharge Cycles: Up to ~1,000 recharges
Typical Chemistry: Nickel-Metal-Hydride (Ni-MH)
Country of Origin: Japan

Features:

Rechargeable 9 V battery re-usable many times, offering cost savings compared to single-use cells.
450 mAh capacity suitable for moderate-drain 9 V devices (e.g., smoke alarms, wireless mics, some testers).
Ni-MH technology provides lower internal resistance and better discharge performance than many alkaline 9 V cells.
Large cycle life means the battery is suited for devices used regularly and replaced infrequently.
Environmentally preferable since it reduces waste from disposable 9 V batteries.

About This Product

The Sony 9 V Rechargeable Battery (450 mAh) is an excellent choice for buyers looking for a reliable, reusable power source for their 9-volt devices. With its 450 mAh capacity and up to ~1,000 recharge cycles, it offers a strong long-term value for devices such as smoke detectors, wireless microphones, testers, and other equipment that accepts standard 9 V cells. The Ni-MH chemistry ensures stable performance throughout discharge, making it more dependable compared to standard alkaline 9-V batteries — especially for devices that draw a moderate current. For optimal performance, it is recommended to charge the battery before its first use and to use a compatible charger designed for 9 V Ni-MH cells.

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