1. Introduction
This manual provides essential information for the safe and effective use of your MIUZZY Rechargeable Battery, designed specifically for the M245 Cordless Vacuum Cleaner. Please read this manual thoroughly before installation and operation, and retain it for future reference.
2. Safety Instructions
To prevent damage to the battery or personal injury, always observe the following safety precautions:
- 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 a battery pack. 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.
- Keep batteries out of the reach of children.
- Only use the battery pack in the application for which it was intended.
- Do not mix batteries of different capacities or types.
- Dispose of used batteries promptly and according to local regulations.
3. Package Contents
Verify that all items are present upon unpacking:
- 1 x MIUZZY Rechargeable Battery for M245 Cordless Vacuum Cleaner

Image 1: The MIUZZY M245 Cordless Vacuum Cleaner Rechargeable Battery.
4. Setup
4.1 Battery Installation
- Ensure the M245 Cordless Vacuum Cleaner is powered off and unplugged from any charging source.
- Locate the battery compartment on your M245 vacuum cleaner. This is typically on the main body of the vacuum.
- Press the battery release button (if applicable) and carefully remove the old battery.
- Align the new MIUZZY rechargeable battery with the battery slot. Ensure the connectors are properly oriented.
- Gently slide the battery into the compartment until it clicks securely into place. Do not force the battery.
4.2 Initial Charging
Before first use, fully charge the battery. A full charge typically takes approximately 4 hours.
- Connect the vacuum cleaner (with the new battery installed) to its charging adapter.
- Plug the charging adapter into a standard wall outlet.
- The charging indicator on the vacuum cleaner will typically illuminate or change color to indicate charging status. Refer to your M245 vacuum cleaner manual for specific charging indicators.
- Once fully charged, disconnect the vacuum from the charging adapter.

Image 2: Internal battery view highlighting 4-hour charge time and 86.4 Watt-Hour capacity.

Image 3: MIUZZY vacuum cleaners on wall-mounted charging stations, demonstrating a typical charging setup.
5. Operating Instructions
Once the battery is installed and fully charged, your MIUZZY M245 Cordless Vacuum Cleaner is ready for use. The battery provides power to the vacuum, allowing for cordless operation.
- Press the power button on your M245 vacuum cleaner to begin operation.
- The battery will supply power to the motor and other components of the vacuum.
- Monitor the battery indicator on your vacuum cleaner to determine the remaining charge.
- When the battery charge is low, the vacuum's performance may decrease, or it may automatically shut off. Recharge the battery as described in Section 4.2.

Image 4: A MIUZZY cordless vacuum cleaner in operation, powered by its battery.
6. Maintenance
6.1 Charging
- Always use the original charging adapter provided with your M245 vacuum cleaner.
- Do not overcharge the battery. Disconnect the charger once the battery is full.
- Avoid completely draining the battery before recharging, as this can reduce its lifespan.
6.2 Storage
- If storing the battery for an extended period, charge it to approximately 50-60% capacity.
- Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures.
- Recharge the battery every 3-6 months during long-term storage to prevent deep discharge.
6.3 Cleaning
- Wipe the exterior of the battery with a clean, dry cloth.
- Do not use harsh chemicals or abrasive cleaners.
- Ensure the battery terminals are clean and free of debris for optimal connection.
7. Troubleshooting
If you encounter issues with your MIUZZY rechargeable battery, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not connected properly; faulty charger/outlet; battery not seated correctly. | Ensure charger is securely plugged into both vacuum and outlet. Try a different outlet. Re-install battery. |
| Short operating time | Battery not fully charged; battery degradation; vacuum operating in high power mode. | Fully charge the battery. Reduce power mode if possible. If battery is old, consider replacement. |
| Vacuum not powering on | Battery depleted; battery not installed correctly; vacuum fault. | Charge the battery. Re-install battery. If issue persists, consult your M245 vacuum cleaner manual or MIUZZY support. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | MIUZZY |
| Model Number | M245-BT |
| Battery Type | Lithium Polymer |
| Battery Capacity | 4000 mAh (x6 cells) |
| Voltage | 21.6V |
| Watt-Hour | 86.4 Wh |
| Approximate Charge Time | 4 hours |
| Product Dimensions | 5 x 5 x 5 inches |
| Item Weight | 4.8 ounces |
| Recommended Use | Vacuum Cleaner (MIUZZY M245) |
9. Warranty and Support
MIUZZY is committed to providing quality products and customer satisfaction. Your MIUZZY Rechargeable Battery for M245 Cordless Vacuum Cleaner comes with the following:
- 90-Day Full Refund: If you are not satisfied with your purchase, you may be eligible for a full refund within 90 days.
- 24-Month Warranty: The battery is covered by a 24-month warranty against manufacturing defects.
- Customer Service: MIUZZY offers customer service support, typically responding within 4-24 hours.
For warranty claims, technical assistance, or any other inquiries, please contact MIUZZY customer support through the retailer's platform or the official MIUZZY website.

Image 5: Overview of MIUZZY's professional services and guarantees.



