1. Introduction
This manual provides essential information for the safe and efficient use of your Varstrom Ebike Battery. It covers various models, including Downtube (Hailong) and Rear Rack versions, with different voltage and capacity options. Please read this manual thoroughly before installation and operation to ensure optimal performance and safety.
Image: Varstrom Ebike Battery in downtube and rear rack configurations on bicycles, with charger and mounting base.
2. Important Safety Warnings
- Fire Risk: Please be aware of potential fire risks. Strictly follow the instruction manual for all charging and storage procedures.
- Disposal: For proper disposal, check your local authority's website for information and dispose of the lithium-ion battery safely in accordance with all applicable legal requirements.
- Charging: The charging current should not exceed 5 amps. Use only the provided charger.
- Water Exposure: While the battery has an IP65 waterproof rating, it is not recommended to submerge or expose the battery to direct contact with water.
- Protection Features: The battery is equipped with a Smart BMS (Battery Management System) providing protection against overcurrent, overpower, overcharging, over-discharging, temperature fluctuations, and short circuits.
3. Package Contents
Verify that all items are present in your package:
- Battery x 1
- Key x 2
- Charger x 1
- Battery Base x 1
- User Manual x 1
- Install Screws x 4
- XT60 Cable x 1 (for battery base connection)
Image: Contents of the product package including battery, keys, charger, battery base, manual, and installation screws.
4. Product Overview
The Varstrom Ebike Battery is designed for reliability and performance. Key features include:
- High Capacity: Available in various capacities (e.g., 48V 20AH, 960Wh) providing extended electric and assisted ranges.
- Smart BMS: Equipped with a 30A protection board for comprehensive battery safety.
- Power Indication: Integrated LED indicators show the current charge level (25%, 50%, 75%, 100%).
- Anti-Theft Lock: A key-operated lock secures the battery to your bike frame.
- 6-Pin Discharge Port: Ensures higher conductivity and better heat dissipation.
- USB Charging Port: A 5V 1A USB socket allows charging of external devices like mobile phones.
- Waterproof Design: IP65 rated for protection against dust and water splashes.
Image: Detailed view of the battery features including power indication, charge socket, power switch, anti-theft lock, and discharge port.
Image: Battery with a 5V 1A USB charger socket, demonstrating its use for charging a mobile phone.
5. Specifications
| Feature | Detail |
|---|---|
| Brand Name | Varstrom |
| Product Type | Ebike Battery |
| Type | Lithium battery |
| Voltage Options | 36V, 48V, 52V |
| Capacity Range | 21 - 30Ah (model dependent) |
| Certification | CE |
| Life Cycle | 1000+ times (retaining 85% capacity) |
| Charging Current | 2A - 4A (Charger dependent) |
| Charging Temperature | 0-45 ℃ |
| Discharge Temperature | -15-65 ℃ |
| Charging Method | CC/CV |
| Waterproof Rating | IP65 |
| USB Output | 5V 1A |
| Compatibility | BAFANG ebike conversion kits (mid drive & hub motors), 36V/48V/52V electric bikes. Default XT60 female connector. |
| Warranty | 2 Year |
Battery Size Details (Examples)
Image: Detailed dimensions for Hailong 1, Hailong 1-2, Hailong Max G80, Yingwu, and Rear Rack battery types.
- Hailong 1 (Downtube): 36V13Ah, 468Wh, DNEGC 18650 cells, 368 x 90 x 89.5mm, 3KG, 42V 2A Charger, 30A BMS, No USB.
- Hailong 1-2 (Downtube): 36V15.6Ah, 48V16Ah. Dimensions: 368 x 90 x 111mm.
- Hailong Max G80 (Downtube): 36V24Ah (Samsung Cells), 48V20Ah (Samsung Cells). Dimensions: 367 x 90 x 127mm.
- Yingwu (Downtube): 52V20Ah. Dimensions: 368 x 95 x 125mm.
- Rear Rack: 36V20.8Ah, 48V18.2Ah. Dimensions: 476 x 165 x 89mm.
6. Installation
Follow these steps to install your Varstrom Ebike Battery:
- Mount the Battery Base: Securely attach the provided battery base to your bike frame using the included installation screws. Ensure the base is firmly fixed and aligned correctly with your bike's mounting points.
- Slide in the Battery: Carefully slide the battery onto the installed base until it clicks into place.
- Lock the Battery: Use one of the provided keys to lock the battery onto the base. This prevents theft and ensures the battery remains secure during riding.
- Connect to Motor: Connect the battery's discharge port (XT60 or other compatible connector) to your ebike motor system.
Image: Visual guide for installing the downtube battery onto a bicycle frame.
Image: Illustrates compatibility with various BAFANG and Varstrom motor systems and connectors.
7. Operation
7.1 Powering On/Off
Locate the power switch on the battery. Press it to turn the battery on or off. Ensure the battery is turned off when not in use or during charging.
7.2 Checking Battery Level
Press the button next to the LED indicators on the battery. The green LEDs will illuminate to show the approximate charge level:
- 1 LED: 25% Power
- 2 LEDs: 50% Power
- 3 LEDs: 75% Power
- 4 LEDs: 100% Power
Image: Close-up of the battery power light indicators showing charge levels.
7.3 Charging the Battery
To charge the battery:
- Ensure the battery is turned off.
- Open the cover of the XLR charging port on the battery.
- Connect the provided charger to the battery's charging port.
- Plug the charger into a standard wall outlet.
- The charger's indicator light will show charging status (typically red for charging, green for fully charged).
- Once fully charged, unplug the charger from the wall and then from the battery. Close the charging port cover.
Important: The charging current must not exceed 5 amps. Always charge the battery in a well-ventilated area, within a temperature range of 0-45 ℃.
7.4 Using the USB Charging Port
The battery features a 5V 1A USB output port. You can use this port to charge compatible electronic devices, such as your mobile phone, while on the go.
8. Maintenance
- Cleaning: Wipe the battery exterior with a soft, dry cloth. Do not use harsh chemicals or abrasive cleaners.
- Storage: When storing the battery for extended periods, ensure it is charged to approximately 50-70% capacity. Store it in a cool, dry place, away from direct sunlight and extreme temperatures (-15-65 ℃).
- Regular Checks: Periodically inspect the battery casing, cables, and connectors for any signs of damage or wear.
- Water Exposure: Although IP65 rated, avoid exposing the battery to heavy rain or submerging it in water.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not connected properly; power outlet issue; battery switch off; damaged charger/battery. | Check all connections; try a different outlet; ensure battery power switch is off during charging; contact support if components are damaged. |
| Battery not powering ebike | Battery not locked securely; power switch off; low battery charge; loose motor connection. | Ensure battery is fully locked; turn on power switch; charge battery; check motor connections. |
| Reduced range/performance | Battery age (after 1000+ cycles); extreme operating temperatures; heavy load/terrain. | This is normal wear over time. Avoid extreme temperatures and excessive loads for optimal life. |
| USB port not charging devices | Device incompatibility; cable issue; battery too low. | Ensure device is compatible with 5V 1A output; try a different USB cable; ensure battery has sufficient charge. |
10. User Tips
- Check Dimensions: Always verify the battery dimensions against your bike frame's available space before purchasing to ensure proper fit. Refer to the 'Battery Size Details' in the Specifications section.
- Complete Package: The product includes the battery, charger, keys, battery base, manual, and installation screws. You do not need to purchase these separately.
- Connector Type: The default connector port for the battery is XT60 female. If you require a different connector type for your ebike system, please confirm compatibility or contact customer service.
11. Warranty and Support
Your Varstrom Ebike Battery comes with a 2-year warranty from the date of purchase.
For any technical assistance, troubleshooting, or warranty claims, please contact Varstrom customer service. We offer 24-hour customer service and have professional technicians available in the EU to provide technical support and help resolve any issues you may encounter.
Our global service locations and repair points include France, Poland, Germany, Spain, and Italy, ensuring prompt support for our customers.
Image: Global service map indicating Bafang's worldwide service locations.