12V Ni-MH Battery Pack D-size, 10,000mAh for various emergency power sources

Features

• High Energy Density: The D-cell format provides an optimal balance of physical size and high capacity , enabling long runtimes for demanding devices.

• Robust & Safe Chemistry: Ni-MH chemistry is inherently stable and less prone to thermal runaway compared to lithium-based batteries, making it a safe choice for many applications.

• Wide Operating Temperature: Capable of performing in a broad range of environments, from -45°C to +80°C.

• No Memory Effect: Can be recharged after partial discharge without significant loss of capacity, simplifying use.

• Environmental Friendliness: Contains no toxic cadmium or lead, and is easier to recycle.

Specification

Applications

• Professional portable devices: field recording equipment, measuring instruments, mine ventilation, portable medical equipment.
• Backup power system: emergency lighting, elevator emergency power, hospital, hotel emergency power, alarm system, and small uninterruptible power supply for routers or modems.
• High power consumption portable devices: powerful portable speakers, robotics technology, remote control applications (boats, low-speed cars), and portable tools.

Warnings & Precautions

Charging

• Use a Dedicated Charger: Always charge with a Ni-MH specific smart charger that features -ΔV (negative delta voltage) detection and temperature monitoring to terminate charge correctly. Using an incorrect charger is dangerous.
• Recommended Charge Rates: For longevity, use a standard charge current of 0.2C-0.5C (2A-5A for this pack). Avoid continuous trickle charging for modern high-capacity Ni-MH cells unless the charger is specifically designed for it with a very low current (<C/50).
• Charge Environment: Charge in a well-ventilated area on a non-flammable surface. Do not charge immediately after high-load use; allow the pack to cool to near ambient temperature.

Discharging

• Do Not Over-Discharge: Never discharge the pack below 10.0V under load. Deep discharge, especially allowing individual cells to reverse polarity, causes permanent damage.
• Current Limits: For continuous operation, do not exceed the 10A (1C) rating. The 30A (3C) pulse rating is for short durations (seconds) only.
• Temperature Monitoring: If the pack becomes excessively hot during discharge, reduce the load or allow it to cool.

Storage

• State of Charge: For long-term storage (>1 month), condition the pack to a 40-60% state of charge (approximately 12.0V - 12.4V after resting).
• Storage Environment: Store in a cool, dry place within the recommended temperature range. Avoid extreme temperatures and humidity.
• Maintenance: Recharge stored batteries every 6-12 months to compensate for self-discharge and maintain health.

Shenzhen Manli Technology Co., Ltd. is a high-tech manufacturing enterprise specializing in the R&D, production, and sales of lithium batteries.
The product portfolio encompasses a wide range of battery types, including high-capacity, low self-discharge, power-type, and high/low-temperature variants. These products are widely utilized in various smart drones, model aircraft, emergency power supplies, lighting fixtures, toys, smart home appliances, and other consumer electronics. The company possesses comprehensive R&D, design, and manufacturing capabilities, a robust quality management system, as well as testing facilities for battery performance and safety compliance. We are fully equipped to meet customers' personalized and diverse needs with tailored solutions, delivering cost-effective and reliable battery products. Our battery products have obtained third-party certifications such as UL, CE, KC, CCC, BIS, CB, PSE, REACH, ROHS, and UN38.3.
We aspire to collaborate with like-minded partners worldwide, leveraging advanced battery technology to strive for a greener, smarter, and more sustainable future.