1. Introduction
Thank you for choosing the YOSE POWER E-Bike Battery. This manual provides essential information for the safe and efficient use, installation, and maintenance of your 24V 15.6Ah Lithium-ion replacement battery, model XH259-10J. Please read this manual carefully before using the product and keep it for future reference.
Important Note: Before purchasing or installing, always verify the voltage and physical dimensions of your original battery to ensure compatibility.
2. Product Overview
The YOSE POWER XH259-10J battery is designed for electric bicycles, offering reliable power and a long lifespan. It features an intelligent Battery Management System (BMS) for enhanced safety and performance.

Key Features:
- High Quality Cells: Utilizes TOP A GRADE ZELL original cells for optimal performance.
- Intelligent BMS: Prevents overcharging, over-discharging, overcurrent, and short circuits, ensuring protection and a long service life.
- Robust Design: Features drop protection, high and low temperature protection, and is waterproof and dustproof.
- Extended Cycle Life: Designed for over 1000 charge cycles.
- Vibration Protection: Built to withstand typical e-bike vibrations.
- Ergonomic Design: Robust aluminum cover with a dedicated guide rail for easy installation and removal. The handle is made of ABS + PC alloy for comfortable transport.
3. Technical Specifications
Below are the detailed technical specifications for your YOSE POWER E-Bike Battery.

| Specification | Value |
|---|---|
| Model | XH259-10J |
| Brand | YOSE POWER |
| Battery Type | Lithium-ion |
| Nominal Voltage | 24V |
| Capacity | 15.6Ah |
| Energy | 404Wh |
| Recommended Motor Power | Up to 250W (Max 500W) |
| Max Continuous Discharge Current | 20A |
| Charger Output Voltage | 29.4V 2A |
| Charging Time | Approximately 6 hours |
| Dimensions (L x W x H) | 380mm x 86mm x 87mm |
| Weight (with holder) | Approx. 3 kg |
| Operating Temperature (Charge) | 0°C to 45°C |
| Operating Temperature (Discharge) | -20°C to 60°C |
| Storage Temperature | -20°C to 45°C |
| Discharge Interface | JST (Red: Positive, Black: Negative) |
| Certifications | CE, ROHS, UN38.3 |
4. Package Contents
Upon opening your YOSE POWER E-Bike Battery package, please ensure all the following items are present:

- 1 x YOSE POWER E-Bike Battery (XH259-10J)
- 1 x Battery Charger (29.4V 2A)
- 2 x Keys
- 1 x Discharge Connector
5. Setup and Installation
The YOSE POWER battery is designed for easy installation and removal thanks to its dedicated guide rail system.
5.1 Installation Steps
- Ensure your e-bike is turned off and secured.
- Align the battery with the mounting rail on your e-bike frame.
- Slide the battery firmly onto the rail until it clicks into place.
- Use the provided key to lock the battery securely to the frame.
- Connect the discharge connector to your e-bike's motor system.
5.2 Removal Steps
- Ensure your e-bike is turned off.
- Unlock the battery from the frame using the key.
- Carefully slide the battery off the mounting rail.
- Disconnect the discharge connector if necessary.
6. Operating Instructions
6.1 Battery Components

- Power Switch: Controls the battery's power output. Turn to 'ON' for use, 'OFF' for storage or installation/removal.
- Charge Socket: Port for connecting the charger to replenish the battery.
- Discharge Socket: Port for connecting the battery to the e-bike's motor system.
6.2 Battery Power Indicator
The battery is equipped with a power indicator to show the remaining charge level.

Press the power button on the battery to illuminate the indicator lights. Each light typically represents a percentage of the total charge:
- All lights on: 100% Power
- Four lights on: 80% Power
- Three lights on: 60% Power
- Two lights on: 40% Power
- One light on: 20% Power (Recharge soon)
6.3 Charging the Battery
Always use the original YOSE POWER charger provided with your battery.
- Ensure the battery is turned OFF before charging.
- Connect the charger to the battery's charge socket.
- Plug the charger into a standard wall outlet.
- The charger indicator light will typically show red during charging and turn green when fully charged.
- Once fully charged, disconnect the charger from the wall outlet first, then from the battery.
7. Maintenance and Storage
Proper maintenance and storage will extend the life and performance of your battery.
- Regular Charging: If the battery is not used for an extended period, maintain its charge at approximately 40% and recharge it every three months.
- Storage Environment: Store the battery in a dry, cool, and isolated environment. Avoid extreme temperatures, direct sunlight, and high humidity.
- Physical Protection: Protect the battery from excessive pressure, impacts, and contact with children.
- Cleaning: Use a dry, soft cloth to clean the battery. Do not use water or other liquids.
- Disposal: Do not dispose of the battery with ordinary household waste. Follow local regulations for lithium-ion battery recycling.
8. Troubleshooting
If you encounter issues with your YOSE POWER E-Bike Battery, consider the following general troubleshooting steps:
- Battery Not Charging: Ensure the charger is correctly connected to both the battery and the power outlet. Check if the power outlet is functional. Verify the charger's indicator light.
- Battery Not Powering E-Bike: Ensure the battery is securely locked onto the frame and the power switch is in the 'ON' position. Check all connections between the battery and the e-bike's motor system.
- Reduced Range: Battery performance can be affected by temperature, terrain, rider weight, and e-bike settings. Ensure the battery is fully charged before each ride. Over time, all batteries experience some capacity degradation.
- Unusual Behavior: If the battery exhibits unusual heat, smell, or visible damage, immediately discontinue use and contact customer support.
For persistent issues, please refer to the Warranty and Support section for contact information.
9. Warranty and Support
YOSE POWER is committed to providing high-quality products and customer service.
9.1 Warranty Information
- Battery Warranty: 18 months from the date of purchase.
- Charger Warranty: 12 months from the date of purchase.
- Return Policy: 30 days no-reason return from the date of purchase.
All batteries undergo a Quality Control (QC) test before leaving the factory and are CE, ROHS, and UN38.3 certified.
9.2 After-Sales Service (SAV)
If you need to return or exchange an item, or require technical assistance beyond the warranty period, please contact YOSE POWER customer service first. They will provide the correct return address and activate the service procedure.
Do not return the package yourself without prior authorization to avoid refusal by the warehouse and potential delays in your refund.
YOSE POWER continues to provide technical support and accessory purchase options even after the warranty period has expired.
10. Important Safety Information
Please observe the following safety precautions to prevent injury or damage to the battery:
- Do not disassemble, open, or shred the battery pack.
- Do not expose the battery to heat or fire. Avoid storage in direct sunlight.
- Do not short-circuit the battery. Do not store battery packs haphazardly in a box or drawer where they may short-circuit each other or be short-circuited by conductive materials.
- Do not subject battery packs to mechanical shock.
- In the event of a battery leaking, do not allow the liquid to come into contact with the skin or eyes. If contact has been made, wash the affected area with copious amounts of water and seek medical advice.
- Do not use any charger other than that specifically provided for use with the equipment.
- Keep the battery clean and dry.
- Do not leave a battery on prolonged charge when not in use.
- Do not use the battery for any application other than that for which it was intended.
- Keep out of reach of children.




