BONAI 8-Slot USB Rechargeable AA/AAA Ni-MH Battery Charger

Introduction

Thank you for choosing the BONAI 8-Slot USB Rechargeable Battery Charger. This charger is designed for efficient and safe charging of AA and AAA Ni-MH/Ni-CD rechargeable batteries. Featuring independent charging slots and intelligent protection, it ensures optimal battery performance and longevity. Please read this manual carefully before use to ensure proper operation and safety.

Safety Instructions

• Use this charger only for AA/AAA Ni-MH/Ni-CD rechargeable batteries. Attempting to charge other battery types (e.g., alkaline, carbon-zinc) may cause leakage, rupture, or explosion.
• Do not disassemble, modify, or short-circuit the charger.
• Avoid exposing the charger to rain, moisture, direct sunlight, or extreme temperatures.
• Keep the charger away from children and pets.
• Ensure proper ventilation during charging. Do not cover the charger.
• Unplug the charger from the power source when not in use or before cleaning.
• If any abnormal conditions occur (e.g., smoke, strange odor, excessive heat), immediately unplug the charger and discontinue use.

Package Contents

• 1 x BONAI 8-Slot USB Battery Charger (Model: ZN825E)
• 1 x Micro USB Cable (1 meter)
• 1 x User Manual

Image: The BONAI 8-Slot USB Battery Charger (ZN825E) shown with its packaging, including the Micro USB cable and user manual.

Product Features

• 8 Independent Charging Slots: Allows charging of 1 to 8 AA or AAA Ni-MH/Ni-CD batteries simultaneously, regardless of brand, capacity, or charge state.
• Universal USB Power: Powered by any 5V USB adapter (computer, power bank, car charger, wall adapter) using the included Micro USB cable.
• Individual LED Indicators: Each slot has its own LED to show charging status (Red: Charging, Green: Charge Complete, Flashing: Malfunction/Bad Battery).
• Smart Protection Chip: Features real-time monitoring for overcharge, overcurrent, overvoltage, short-circuit, and overheat protection (max 45°C during use).
• Certified Safety: CE / FC / RoHS certified for validated safety.

Image: A visual comparison highlighting the BONAI charger's independent charging slots (left) versus a conventional charger that requires batteries to be charged in pairs (right).

Image: The BONAI 8-slot charger displayed on a wooden surface, with overlaid text and icons illustrating its independent charging and multi-protection capabilities.

Setup

1. Unpack the Charger: Carefully remove the charger and Micro USB cable from the packaging.
2. Connect Power: Insert the Micro USB end of the cable into the input port on the charger. Connect the USB-A end to a 5V USB power source such as a computer USB port, a power bank, a car charger, or a wall adapter.
3. Placement: Place the charger on a flat, stable, and well-ventilated surface, away from direct heat sources or flammable materials.

Image: The BONAI charger demonstrating its compatibility with various 5V USB power sources, including a laptop, car charger, and wall adapter.

Image: A close-up view highlighting the key components of the BONAI charger: the input port, cathode, anode, and LED indicator for each slot.

Operating Instructions

1. Insert Batteries: Carefully insert 1 to 8 AA or AAA Ni-MH/Ni-CD rechargeable batteries into the charging slots. Ensure the positive (+) and negative (-) terminals of the batteries match the markings in the charger slots.
2. Start Charging: Once batteries are correctly inserted and the charger is connected to a power source, the corresponding LED indicator for each battery will light up red, indicating that charging has begun.
3. Monitor Charging: The LED for each slot will remain red during the charging process.
4. Charging Complete: When a battery is fully charged, its corresponding LED indicator will turn green.
5. Remove Batteries: Once charging is complete (LED is green), carefully remove the batteries from the charger.

Image: The BONAI charger with both AA and AAA batteries inserted into its individual slots, illustrating its universal compatibility.

Image: The BONAI charger with a mix of AA and AAA batteries, some showing red LEDs (charging) and others green (charged).

LED Indicators

• Red LED: Indicates that the battery in the corresponding slot is currently charging.
• Green LED: Indicates that the battery in the corresponding slot is fully charged and ready for use.
• Flashing LED: Indicates that the battery is incorrectly inserted, has poor contact due to oxidation, or is a non-rechargeable battery. Remove and re-insert the battery, or replace it if it's not rechargeable or faulty.

Maintenance

• Cleaning: Disconnect the charger from the power source before cleaning. Use a soft, dry cloth to wipe the surface of the charger. Do not use liquid cleaners or abrasive materials.
• Storage: Store the charger in a cool, dry place when not in use. Avoid storing it in areas with high humidity or extreme temperatures.
• Contact Points: Periodically check the metal contact points in the charging slots for any dirt or corrosion. Clean gently with a cotton swab if necessary.

Troubleshooting

Image: Icons illustrating the multi-protection features of the BONAI charger, including safeguards against over-charge, over-current, over-voltage, over-heat, and short-circuit, along with CE, FC, and RoHS certifications.

Specifications

Warranty and Support

BONAI products are manufactured with high-quality standards. For any questions, technical support, or warranty claims, please contact our customer service. You can typically find support contact information on the product packaging or through the retailer where you purchased the item.

Customer service email: Service@bonai