BONAI D Rechargeable Batteries 10,000mAh 1.2V Ni-MH - User Manual

1. Introduction

This manual provides essential information for the safe and effective use of your BONAI D 10,000mAh 1.2V Ni-MH rechargeable batteries. Please read these instructions carefully before first use and retain for future reference.

2. Product Features

• High Capacity: Each D cell battery offers 10,000mAh capacity.
• Rechargeable: Can be recharged up to 1200 times, offering long-term value.
• Low Self-Discharge: Maintains approximately 80% of its original charge after being stored for 3 years of non-use.
• No Memory Effect: Ni-MH chemistry allows charging at any time without reducing overall battery life.
• Wide Compatibility: Ideal for various high-drain devices requiring D cell batteries.
• Eco-Friendly: Free from mercury (Hg), cadmium (Cd), and lead (Pb).

Image 2.1: BONAI D 10,000mAh Ni-MH Rechargeable Batteries (8-pack).

Image 2.2: Comparison of Low Self-Discharge for BONAI Batteries. BONAI batteries retain 75% charge after 3 years, while general batteries retain 10%.

Image 2.3: Combined Benefits of Alkaline and Rechargeable Batteries. BONAI batteries offer readiness, long storage, and wide device applicability like alkaline, plus reusability, recyclability, and high capacity like rechargeable batteries.

Image 2.4: Common Applications for BONAI D Batteries. These batteries are suitable for devices such as radios, water heaters, electronic organs, flashlights, and gas stoves.

Image 2.5: Eco-Friendly Design. BONAI batteries are free from harmful heavy metals like mercury, cadmium, and lead.

Image 2.6: Wide Operating Temperature Range. These batteries are designed to function reliably in temperatures from -20°C to 60°C.

Image 2.7: Charge and Discharge Performance Curves. These graphs illustrate the typical voltage behavior during charging and low-rate discharging. A full charge is indicated at 1.4V, and charging is needed at 1.0V.

Image 2.8: BONAI D Battery Dimensions. The battery measures approximately 1.3 inches (32.4mm) in diameter and 2.4 inches (61.2mm) in height.

3. Specifications

4. Safety Information

Observe the following safety precautions to prevent injury or damage to your batteries and devices:

• Use only chargers designed for Ni-MH rechargeable batteries. Using incompatible chargers may cause damage or overheating.
• Do not mix new and old batteries, or batteries of different types or brands.
• Ensure correct polarity (+ and -) when inserting batteries into devices or chargers. Incorrect insertion can cause damage.
• Do not short-circuit, disassemble, or expose batteries to fire or extreme temperatures.
• Keep batteries away from water and moisture.
• If a battery leaks, avoid contact with the fluid. If contact occurs, wash thoroughly with water and seek medical attention if irritation persists.
• Dispose of used batteries responsibly according to local regulations. Do not dispose of in household waste.
• Keep batteries out of reach of children.

5. Setup and First Use

5.1 Initial Charging

Although BONAI D batteries maintain a significant charge during storage, it is recommended to fully charge them before their first use to ensure optimal performance and longevity. Use a compatible Ni-MH battery charger.

1. Insert the batteries into a compatible Ni-MH charger, ensuring correct polarity.
2. Follow the charger's instructions for charging time. Charging time will vary based on the charger's output current and the battery's remaining capacity.
3. A full charge is typically indicated when the battery voltage reaches approximately 1.4V.

5.2 Battery Insertion

When inserting batteries into a device:

• Always refer to your device's instruction manual for specific battery insertion guidelines.
• Match the positive (+) and negative (-) terminals of the battery with the corresponding markings in the device's battery compartment.
• Ensure batteries are securely seated to prevent intermittent power or damage.

6. Operating Instructions

BONAI D Ni-MH batteries are designed for use in a wide range of devices that require D cell batteries. Their high capacity makes them suitable for high-drain applications such as flashlights, radios, and other household electronics.

• These batteries provide a stable 1.2V output, which is compatible with most devices designed for 1.5V alkaline D cells.
• The Ni-MH chemistry ensures consistent performance throughout the discharge cycle.
• Due to their low self-discharge rate, these batteries are ready to use even after extended periods of storage.

7. Maintenance

7.1 Charging Frequency

For optimal battery life and performance, it is recommended to fully charge the batteries every 3 months, especially if they have been stored for a long period without use.

7.2 Storage

• Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures.
• Avoid storing batteries in metal containers or with other metal objects to prevent short-circuiting.
• For long-term storage, it is advisable to store batteries with a partial charge (around 50%) rather than fully charged or completely depleted.

7.3 Cleaning

If battery terminals become dirty, gently wipe them with a clean, dry cloth to ensure good electrical contact.

8. Troubleshooting

• Battery not charging:
  • Ensure the charger is plugged in and functioning correctly.
  • Verify that the batteries are inserted with correct polarity.
  • Check if the charger is compatible with Ni-MH D cell batteries.
  • Clean battery terminals and charger contacts if they appear dirty.
• Device not powering on:
  • Confirm batteries are fully charged.
  • Check for correct battery insertion and polarity in the device.
  • Ensure the device itself is functioning properly.
  • If using multiple batteries, ensure all are charged and correctly inserted.
• Reduced operating time:
  • Batteries may not be fully charged.
  • The device might be a high-drain application, consuming power quickly.
  • Batteries may be nearing the end of their life cycle (after many recharges).

9. Warranty and Support

For warranty information or technical support, please refer to the BONAI official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.

Manufacturer: ShenZhen EPT Battery Co., Ltd

Brand: BONAI