Sony NP-QM91D Operating Instructions

Sony NP-QM91D manual cover
Pages 2
Year 2006
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Sony NP-QM91D Specification

The Sony NP-QM91D is a high-capacity lithium-ion rechargeable battery pack designed for use with select Sony camcorders. Featuring a robust power output, this battery offers a capacity of 4140mAh, which ensures extended recording times ideal for long shooting sessions. It operates at a voltage of 7.2V, providing reliable and consistent energy supply to compatible devices. The NP-QM91D employs Sony's ActiFORCE technology, which enhances the charge and discharge cycle efficiency, resulting in quicker charging times and improved battery stamina. Additionally, this technology helps in maintaining a stable power delivery, thereby supporting high-performance operations of the camcorder without interruptions. The battery pack is engineered to withstand the rigors of frequent usage, incorporating a durable construction that resists impacts and reduces wear over time. The advanced lithium-ion composition also eliminates the memory effect, allowing users to recharge the battery at any charge level without diminishing its overall lifespan. The NP-QM91D integrates seamlessly with Sony's InfoLITHIUM system, which provides real-time battery status updates, including remaining charge and approximate usage time, directly on the camcorder's LCD screen. This feature enables users to manage power effectively, ensuring they are always prepared for prolonged shooting sessions. Furthermore, the NP-QM91D is compatible with a range of Sony chargers, offering flexibility in charging options, whether in the studio or on location. Compact and lightweight, this battery pack is designed for portability, making it an ideal accessory for professional videographers and enthusiasts seeking dependable power solutions for their Sony camcorders.

Sony NP-QM91D F.A.Q.

How do I charge the Sony NP-QM91D battery correctly?

To charge the Sony NP-QM91D battery, use the compatible Sony charger. Connect the battery to the charger, then plug the charger into a power outlet. Ensure the connections are secure and allow the battery to charge fully before use.

What should I do if the battery is not charging?

If the battery isn't charging, check the charger and outlet connection. Inspect the battery contacts for dirt or damage. Try using a different compatible charger. If the issue persists, the battery may need replacement.

How can I maximize the battery life of the Sony NP-QM91D?

To maximize battery life, avoid extreme temperatures, fully charge before use, and store in a cool, dry place. Regularly calibrate by fully discharging and then fully recharging the battery.

What is the typical lifespan of the Sony NP-QM91D battery?

The typical lifespan of the Sony NP-QM91D battery is about 300 to 500 charge cycles, or 2-3 years under normal usage conditions. Performance may degrade over time.

Can I use third-party chargers with the Sony NP-QM91D?

While third-party chargers may work, it's recommended to use Sony-approved chargers to ensure compatibility and safety. Third-party chargers can potentially damage the battery or reduce its lifespan.

How do I know when the battery is fully charged?

Most Sony chargers have an indicator light that turns green or off when the battery is fully charged. Refer to your charger’s manual for specific indicator details.

What should I do if the battery overheats?

If the battery overheats, immediately disconnect it from the charger and allow it to cool down in a safe, open area. Overheating could be a sign of a damaged battery or charger. Consult a professional if the issue persists.

Is it safe to leave the battery in the charger overnight?

While many modern chargers have overcharge protection, it's generally best to remove the battery once it's fully charged to prevent potential damage and extend its lifespan.

How should I store the Sony NP-QM91D battery when not in use?

Store the battery in a cool, dry place. If storing for an extended period, charge it to about 50% to maintain its health. Avoid leaving it in devices or in hot environments.

What are the signs that the Sony NP-QM91D battery needs replacement?

Signs that the battery needs replacement include significantly reduced runtime, failure to hold a charge, overheating, and physical deformities like swelling.