1. Introduction
This manual provides essential information for the safe and effective use of your Emaks 130Wh 6.5Ah Lithium-Ion Replacement Battery. This battery is specifically designed to be compatible with a wide range of Hoover ONEPWR Cordless Vacuum Cleaners, offering extended runtime and reliable performance. Please read this manual thoroughly before first use and retain it for future reference.
2. Product Overview
The Emaks 130Wh 6.5Ah Lithium-Ion Replacement Battery is engineered to provide a high-capacity power source for your Hoover ONEPWR devices. Its advanced design ensures compatibility and enhanced performance compared to standard batteries.
Key Features:
- High Capacity: 6.5 Amp-hours (6500mAh) and 130 Watt-hours (130Wh) for extended operating time.
- Full Compatibility: Designed to work seamlessly with various Hoover ONEPWR models, including BH12000, BH12001, BH12010, BH53310, BH53310E, BH53310NP, BH53315, BH53350, BH53350E, BH53352V2, BH53357VB, BH55210, BH55210A, BH55210E, BH55500PC, BH57000, BH57005, BH57005ID, BH57010, BH57100, BH57105, BH57120, BH57125, BH57200, BH57205, BH57220, BH57225, BH57300PC, BK95519, BK95520PC, BH53357VE, BH53352V, BH53000, BH53420, BH53420PC, BH53420PCE, BH90100, BH53320, BH53801V, BH14000, and more.
- Integrated Indicator: Features LED lights to display the current charge level.
- Precise Interface: Ensures a secure and reliable connection to your Hoover ONEPWR device and charger.



3. Safety Information
Your Emaks battery is equipped with multiple safety protections to ensure reliable and secure operation. Adhering to these guidelines is crucial for your safety and the longevity of the battery.
Safety Features:
- Short Circuit Protection: Prevents damage from electrical shorts.
- Overheating Protection: Monitors and regulates internal temperature.
- Overcharge Protection: Prevents battery from being overcharged, extending its lifespan.
- Over-voltage Protection: Safeguards against excessive voltage input.
- Discharge Protection: Prevents over-discharge, which can damage the battery.
- Over-current Protection: Protects against excessive current flow.
The battery has undergone comprehensive quality testing and is certified with CE, FCC, and RoHS standards, ensuring high safety and environmental compliance.

4. Setup
Before using your new Emaks battery, follow these steps for initial setup and installation.
4.1 Initial Charging
- Unpack the battery from its packaging.
- Connect the battery to a compatible Hoover ONEPWR charger (e.g., BH05000, BH05200).
- Plug the charger into a standard electrical outlet.
- Allow the battery to charge fully before its first use. The indicator lights on the battery will typically show charging progress and a full charge status.
4.2 Installation into Device
- Ensure your Hoover ONEPWR vacuum cleaner is turned off and disconnected from any power source.
- Locate the battery compartment on your vacuum cleaner. Refer to your vacuum cleaner's manual for specific instructions if needed.
- Align the Emaks battery with the battery slot, ensuring the contacts are correctly positioned.
- Slide the battery firmly into the compartment until it clicks securely into place.
- Verify that the battery is seated properly and does not wobble.
5. Operating Instructions
Once the battery is installed and fully charged, your Hoover ONEPWR vacuum cleaner is ready for operation.
5.1 Powering On/Off
- To power on your Hoover ONEPWR vacuum, press the power button located on the device.
- To power off, press the power button again.
5.2 Monitoring Battery Level
- The Emaks battery features an integrated LED indicator. Press the control button on the battery to check the current charge level.
- The number of illuminated LEDs indicates the remaining charge. Refer to your vacuum cleaner's manual for any additional battery indicators on the device itself.
5.3 Recharging
- When the battery level is low, remove the battery from the vacuum cleaner.
- Connect it to a compatible Hoover ONEPWR charger as described in the 'Initial Charging' section.
- It is recommended to recharge the battery fully after each use to maintain optimal performance and extend its lifespan.

6. Maintenance and Storage
Proper maintenance and storage are essential for maximizing the lifespan and performance of your Emaks battery.
6.1 General Maintenance
- Keep Contacts Clean: Periodically inspect and clean the battery terminals and the contacts on your charger and vacuum cleaner using a dry cloth to ensure good electrical connection.
- Avoid Extreme Temperatures: Do not expose the battery to extreme heat or cold. Operating and charging temperatures should be within the recommended range (typically 0°C to 45°C or 32°F to 113°F).
- Prevent Physical Damage: Avoid dropping the battery or subjecting it to strong impacts. Do not attempt to disassemble or modify the battery.
6.2 Storage
- For long-term storage, store the battery in a cool, dry place, away from direct sunlight and moisture.
- It is recommended to store Lithium-Ion batteries with a partial charge (around 50%) rather than fully charged or completely depleted, to preserve battery health.
- If storing for extended periods, periodically check the charge level and recharge to approximately 50% every few months.
7. Troubleshooting
If you encounter issues with your Emaks battery, refer to the following troubleshooting guide. For problems not listed here, please contact customer support.
Common Issues and Solutions:
- Battery Not Charging:
- Ensure the charger is properly plugged into a working outlet.
- Verify that the battery is securely connected to the charger.
- Check for any debris or damage on the battery or charger contacts. Clean if necessary.
- Ensure the ambient temperature is within the recommended charging range.
- Reduced Runtime:
- Confirm the battery is fully charged before use.
- Battery performance can be affected by extreme temperatures. Use and store the battery within recommended temperature ranges.
- Over time, all rechargeable batteries experience a natural degradation in capacity. If the battery is old, its runtime may naturally decrease.
- Battery Not Fitting into Device:
- Double-check that your vacuum cleaner model is listed as compatible with this Emaks battery.
- Ensure the battery is oriented correctly before attempting to insert it.
- Do not force the battery into the compartment. If it does not slide in easily, re-check alignment and compatibility.
8. Specifications
The following table details the technical specifications of the Emaks 130Wh 6.5Ah Lithium-Ion Replacement Battery.
| Specification | Value |
|---|---|
| Brand | Emaks |
| Model Number | BT04XL |
| Battery Cell Composition | Lithium Ion |
| Battery Capacity | 6.5 Amp Hours (130Wh) |
| Number of Batteries Required | 1 (included) |
| Item Weight | 1.61 pounds |
| Package Dimensions | 5.59 x 3.9 x 3.19 inches |
| Recommended Uses | Vacuum Cleaner |
| Manufacturer | Dongguan jiataiyuan electronics Co.,Ltd |
| Date First Available | November 2, 2022 |
9. Warranty and Support
Emaks is committed to providing high-quality products and customer satisfaction.
9.1 Safety Guarantee
Our products undergo strict intelligent detection and are equipped with high-quality materials to ensure good performance and safety. This includes protection against short circuits, over-voltage, discharge, and over-current.
9.2 Return Policy
The product is eligible for a 30-day return/replacement policy from the date of purchase. Please refer to the retailer's specific return policy for detailed instructions.
9.3 Customer Support
As a USA-based company, Emaks values your business. For any questions, concerns, or technical assistance regarding your Emaks battery, please contact the seller directly through the platform where you made your purchase. Provide your order details for prompt assistance.