1. Introduction
This manual provides essential information for the safe and effective use of your BS Battery BSLi-03 Lithium Battery. Designed for high performance and durability, this lithium-ion battery offers significant advantages over traditional lead-acid batteries, including reduced weight, extended service life, and improved cold-start performance. Please read this manual thoroughly before installation and operation.

Figure 1: The BS Battery BSLi-03 Lithium Battery, showcasing its compact design and terminal layout.
2. Safety Information
Your safety is paramount. Observe the following precautions to prevent injury or damage to the battery and equipment.
- Always wear appropriate personal protective equipment (PPE), including safety glasses and gloves, when handling batteries.
- Do not short-circuit the battery terminals. This can cause severe sparks, heat, and potential fire.
- Do not disassemble, puncture, or modify the battery. Internal components are hazardous.
- Keep the battery away from open flames, excessive heat, and direct sunlight.
- Avoid dropping the battery or subjecting it to strong impacts.
- If the battery casing is damaged, discontinue use immediately and dispose of it properly.
- Do not immerse the battery in water or other liquids. While waterproof, prolonged submersion is not recommended.
- Dispose of spent batteries according to local regulations. Lithium batteries require special recycling procedures.
- Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
3. Product Features
The BS Battery BSLi-03 Lithium Battery incorporates advanced technology for superior performance:
- Lightweight Design: Up to 70% lighter than traditional lead-acid batteries, improving vehicle handling and performance.
- Extended Service Life: Offers a significantly longer lifespan and over 2000 charge cycles.
- Low Self-Discharge: Maintains charge for extended periods, allowing for engine starts even after long periods of inactivity.
- Fast Charging: Capable of rapid recharging.
- Multi-Position Waterproof Design: Can be installed in various orientations (up to 180°) and is resistant to water ingress.
- Eco-Friendly: Contains no acids or heavy metals, making it non-toxic and environmentally conscious.
- High Heat Resistance: Resistant to temperatures up to 230°C.
- Ready to Use: Plug and play functionality for immediate operation.
- Impressive Low Temperature Performance: Reliable starting power even in cold conditions.
- State of Charge Indicator: Integrated button and LED display to check battery charge level.

Figure 2: Visual representation of key features including rapid charging, lightweight, waterproof, and high charge cycles.
4. Setup and Installation
Follow these steps for proper installation of your BSLi-03 Lithium Battery. If you are unsure, consult a qualified technician.
- Remove Old Battery: Disconnect the negative (-) terminal first, then the positive (+) terminal of the old battery. Carefully remove the old battery from its compartment.
- Prepare New Battery: Ensure the BSLi-03 battery is clean and free from debris. No liquid filling is required as it is a sealed lithium battery.
- Install New Battery: Place the BSLi-03 into the battery compartment. Secure it firmly to prevent movement during operation.
- Connect Terminals: Connect the positive (+) terminal first, then the negative (-) terminal. Ensure all connections are tight and secure.
- Verify Installation: Double-check all connections and ensure the battery is properly seated.

Figure 3: Step-by-step visual guide for battery replacement, emphasizing correct terminal connection order.
5. Operating Instructions
The BSLi-03 Lithium Battery is designed for straightforward operation.
- Starting the Engine: Once installed, the battery is ready to provide power for engine starting.
- Checking State of Charge: Press the integrated button on the battery to activate the LED indicator, which displays the current charge level.

Figure 4: The BSLi-03 battery showing its dimensions and the location of the state of charge indicator button.
6. Maintenance
Minimal maintenance is required for the BSLi-03 Lithium Battery due to its advanced design.
- Regular Inspection: Periodically check the battery terminals for corrosion and ensure connections remain tight.
- Cleaning: Keep the battery surface clean and dry. Use a damp cloth if necessary.
- Charging: While the battery has a low self-discharge rate, if the vehicle is stored for extended periods, occasional charging with a compatible lithium battery charger is recommended to maintain optimal performance. Do not use chargers designed for lead-acid batteries unless they have a specific lithium mode.
- Long-Term Storage: For optimal longevity, store the battery in a cool, dry place. The battery can maintain a charge for up to 12 months without use, allowing for engine start if stored at appropriate temperatures (10-25°C).
7. Troubleshooting
If you encounter issues with your BSLi-03 Lithium Battery, consider the following:
- Engine Not Starting:
- Check battery connections for tightness and corrosion.
- Verify the battery's state of charge using the indicator button. If low, recharge the battery.
- Ensure the vehicle's charging system is functioning correctly.
- Battery Not Holding Charge:
- Confirm you are using a compatible lithium battery charger.
- Inspect for any parasitic drains on the vehicle's electrical system.
- If the battery is old, its capacity may have naturally diminished over time.
- Unusual Odor or Swelling: Immediately disconnect the battery and cease use. This indicates a serious internal issue. Contact support for guidance.
If troubleshooting steps do not resolve the issue, contact customer support.
8. Specifications
Key technical specifications for the BS Battery BSLi-03 Lithium Battery:
| Specification | Value |
|---|---|
| Model Number | BSLi-03 |
| Voltage | 12V |
| Capacity (WH) | 36 Wh |
| CCA (Cold Cranking Amps) | 210 A |
| Capacity (Ah, 10Hr) | 3 Ah |
| Dimensions (L x W x H) | 134 mm x 65 mm x 92 mm |
| Item Weight | 2.2 pounds (approx. 1 kg) |
| Terminal Type | Nut & Bolt |
| Manufacturer Part Number | BSLi-03/HJB9Q-FP/12N9-4B-1 |

Figure 5: Detailed specifications and compatibility chart for the BSLi-03 battery.
9. Warranty and Support
Your BS Battery BSLi-03 Lithium Battery comes with a comprehensive warranty to ensure your peace of mind.
- Warranty Period: The BSLi-03 Lithium Battery is covered by a 2-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
- Claiming Warranty: In the event of a warranty claim, please retain your proof of purchase and contact the retailer or BS Battery customer support.
- Exclusions: The warranty does not cover damage caused by improper installation, misuse, neglect, unauthorized modifications, or normal wear and tear.

Figure 6: Information highlighting the 2-year warranty, flexible mounting angle, and potential lifespan of up to 8 years with proper use.
For further assistance or technical support, please refer to the contact information provided by your retailer or visit the official BS Battery website.





