1. Introduction
This manual provides essential information for the safe and effective use of your BONAI 9V 600mAh Lithium-ion Rechargeable Batteries. Please read these instructions carefully before first use and retain for future reference.

This image displays four BONAI 9V 600mAh Lithium-ion rechargeable batteries, highlighting their compact design and clearly marked positive and negative terminals. Safety warnings regarding polarity, charge times, short-circuiting, and incineration are visible on the battery casing.
2. Product Features
- High Capacity: 600mAh Lithium-ion for extended use.
- Long Cycle Life: Can be recharged up to 1200 times, offering significant long-term value.
- Low Self-Discharge: Maintains charge effectively, retaining up to 80% charge after 10 years of storage.
- Wide Temperature Range: Operates reliably in extreme conditions from -40°F to 140°F.
- Advanced Safety Protections: Built-in safeguards against overcharge, overdischarge, overcurrent, overvoltage, short circuit, and overheating.
- Versatile Compatibility: Suitable for various devices including smoke alarms, metal detectors, professional audio equipment, toys, guitars, and medical devices.

This graphic demonstrates the long-term value of BONAI 9V rechargeable batteries, indicating that one rechargeable battery can be cycled up to 1200 times, equivalent to using 1200 disposable alkaline batteries.

This image illustrates the comprehensive safety features built into BONAI 9V batteries, including protection against overdischarge, extreme temperatures, short circuits, output overvoltage, overcharge, and output overcurrent, ensuring safe operation.

This visual demonstrates the low self-discharge characteristic of BONAI 9V batteries, showing that they retain a significant charge (up to 80%) even after extended storage periods, up to 10 years.

This image highlights the durability of BONAI 9V batteries, indicating their operational capability in a wide range of temperatures, from extreme cold (-40°F) to intense heat (140°F), suitable for various environments.
3. Safety Instructions
To ensure safe operation and prolong battery life, please adhere to the following guidelines:
- Always observe correct polarity (+/-) when inserting batteries into devices or chargers.
- Use only chargers specifically designed for Lithium-ion 9V rechargeable batteries.
- Do not short circuit the battery terminals.
- Do not incinerate, puncture, or disassemble the batteries.
- Avoid exposing batteries to extreme heat or direct sunlight for prolonged periods.
- Keep batteries out of reach of children and pets.
- If a battery shows signs of damage, leakage, or swelling, discontinue use immediately and dispose of it properly.
4. Setup and Charging
4.1 Initial Charge
It is recommended to fully charge the batteries before their first use to optimize performance.
4.2 Charging Process
- Insert the BONAI 9V Lithium-ion rechargeable batteries into a compatible Lithium-ion 9V battery charger, ensuring correct polarity.
- Connect the charger to a power source. The charger's indicator lights will typically show the charging status (e.g., red for charging, green for fully charged).
- Allow the batteries to charge until the charger indicates a full charge.
This video provides an overview of the BONAI 9V 600mAh Lithium-ion battery, demonstrating its features, charging process, and various applications in devices like smoke detectors, measuring instruments, wireless controllers, electric guitars, and walkie-talkies.
5. Operating Instructions
Once fully charged, the BONAI 9V batteries are ready for use in a wide range of compatible electronic devices.
5.1 Device Compatibility
These batteries are designed for devices requiring 9V power, including but not limited to:
- Smoke Alarms and Carbon Monoxide Detectors
- Metal Detectors
- Professional Audio Equipment (e.g., wireless microphones)
- Toys and Remote Control Devices
- Electric Guitars and other musical instruments
- Medical Devices
- Walkie-talkies

This image showcases the broad compatibility of BONAI 9V batteries with various devices, including smoke alarms, battery chargers, and game controllers, making them versatile for household and electronic needs.
5.2 Insertion
Carefully insert the battery into the device's battery compartment, ensuring the positive (+) and negative (-) terminals align correctly with the device's contacts.
6. Maintenance
- Storage: Store batteries in a cool, dry place away from direct sunlight and extreme temperatures. For long-term storage, it is advisable to store them at approximately 50% charge.
- Cleaning: Keep battery terminals clean and free from dirt or corrosion. Use a clean, dry cloth to wipe them if necessary.
- Disposal: Do not dispose of batteries in household waste. Follow local regulations for proper recycling of Lithium-ion batteries.
7. Troubleshooting
7.1 Battery Not Charging
- Ensure the battery is correctly inserted into the charger with proper polarity.
- Verify that the charger is connected to a working power outlet.
- Check if the charger is compatible with Lithium-ion 9V batteries.
- Inspect battery terminals and charger contacts for any dirt or damage.
7.2 Battery Not Fitting in Device
- While BONAI 9V batteries adhere to standard dimensions, slight variations can occur. Compare the battery dimensions with the device's battery compartment.
- Ensure no obstructions are preventing proper insertion.
7.3 Reduced Performance
- Ensure the battery is fully charged before use.
- Check the age of the battery; while long-lasting, all rechargeable batteries have a finite cycle life.
- Verify the device itself is functioning correctly.
8. Specifications
| Specification | Value |
|---|---|
| Model Number | 9V |
| Battery Type | Lithium-ion |
| Capacity | 600 mAh |
| Nominal Voltage | 9V |
| Product Dimensions | 1.86 x 0.96 x 0.23 inches |
| Item Weight (per battery) | Approximately 1 ounce (4 ounces for 4 batteries) |
| Operating Temperature | -40°F to 140°F (-40°C to 60°C) |
| Manufacturer | ShenZhen EPT Battery Co.,Ltd |

This diagram provides precise dimensions of the BONAI 9V battery (48.5mm x 26.5mm x 17.5mm), confirming its adherence to international standards and aiding in compatibility checks for devices.
9. Warranty and Support
BONAI is committed to providing high-quality products and excellent customer service. While specific warranty periods are not detailed here, we stand by our products.
For any questions, concerns, or support needs regarding your BONAI 9V Lithium-ion Rechargeable Batteries, please submit a claim via email. Our customer support team aims to reply within 24 hours.
Contact information for support can typically be found on the product packaging or the official BONAI website.