1. Introduction
This manual provides essential information for the safe and effective use, installation, and maintenance of your ZTHY replacement battery for robot vacuum cleaners. Please read this manual thoroughly before installation and operation to ensure optimal performance and longevity of your battery.
2. Product Specifications

This image displays the key product parameters of the ZTHY replacement battery. The battery is a rechargeable Li-ion type with a nominal voltage of 14.4V and a capacity of 2600mAh. It also shows compliance with CE, FC, and RoHS standards, indicating its safety and environmental certifications. The battery is identified by the internal reference FHDH8865.
| Parameter | Value |
|---|---|
| Battery Type | Li-ion Rechargeable Battery Pack |
| Battery Voltage | 14.4V |
| Capacity | 2600mAh |
| Item Weight | 9.6 ounces (approx. 272 grams) |
| Dimensions (L x W x H) | 2.79 x 1.49 x 1.49 inches (approx. 7.09 x 3.78 x 3.78 cm) |

This image illustrates the physical dimensions of the battery pack, showing its length as approximately 2.79 inches and its width/height as 1.49 inches. These measurements are crucial for verifying compatibility with the vacuum cleaner's battery compartment.
3. Compatibility

This battery is designed as a replacement for various robot vacuum cleaner models. The image shows the battery next to a robot vacuum, indicating its intended use. It is compatible with a range of models, including but not limited to iHome iHRV6-BLK.
This replacement battery is compatible with the following robot vacuum cleaner models:
- Amarey A900
- Goovi D382, F007C
- Lefant M213, M213S, M210B
- Tesvor SUN-INTE-172
- iHOME AUTOVAC Eclipse Pro
- Ionvac Smartclean 2000 Optimax ULTRACLEAN UV 8063 9048
- Deenkee DK600, DK700
- Other models using SUN-INTE-172, SUN-INTE-273, or CMICR18650F8M7-4S1P battery types.

It is crucial to verify that your original vacuum cleaner's battery connector is a 3-prong plug before purchasing and installing this replacement battery. The image provides a detailed view of the 3-prong connector, ensuring proper fit and function.
4. Safety Information

The ZTHY replacement battery is equipped with multiple safety protection features to ensure reliable and safe operation. These protections include:
- Over-Charge Protection: Prevents the battery from being charged beyond its safe voltage limit.
- Over-Heating Protection: Monitors and prevents the battery from reaching excessively high temperatures during operation or charging.
- Over-Voltage Protection: Safeguards against damage from voltage spikes.
- Short-Circuit Protection: Automatically cuts off power in case of a short circuit to prevent damage and fire hazards.
- Over-Power Protection: Protects against excessive power draw.
- Over-Current Protection: Prevents damage from drawing too much current.
The battery also carries a warning label (reference FHDH8865) stating that it is prohibited from being used in water or fire, and cannot be knocked or disassembled. This is visible on the battery itself in the image.
General Safety Precautions:
- Do not expose the battery to water, fire, or extreme temperatures.
- Do not disassemble, puncture, or modify the battery.
- Avoid dropping or subjecting the battery to severe impacts.
- Keep the battery away from children and pets.
- Dispose of used batteries according to local regulations.
5. Installation Guide (Setup)

The image shows the replacement battery alongside a small screwdriver, indicating that basic tools are required for installation. The installation process is designed to be straightforward.
- Power Off: Ensure your robot vacuum cleaner is completely powered off and disconnected from any charging source before beginning the installation.
- Locate Battery Compartment: Turn the robot vacuum cleaner upside down to locate the battery compartment. This is typically secured by screws.
- Remove Screws: Use a suitable screwdriver (often a Phillips head, similar to the one pictured) to remove the two screws securing the battery compartment cover.
- Remove Old Battery: Carefully open the battery compartment cover. Disconnect the old battery's connector from the vacuum cleaner's port. Gently lift and remove the old battery.
- Install New Battery: Align the new ZTHY replacement battery with the compartment. Connect the 3-prong plug of the new battery to the corresponding port in the vacuum cleaner. Ensure the connection is firm and secure.
- Secure Compartment: Place the battery compartment cover back into position and fasten it with the two screws removed earlier.
- Initial Charge: Place the robot vacuum cleaner on its charging base or connect it to its charger to allow the new battery to fully charge before its first use.
Note: Always refer to your specific robot vacuum cleaner's user manual for detailed instructions on battery replacement, as procedures may vary slightly between models.
6. Usage and Maintenance
Proper Use:
- Avoid Over-Charging and Over-Discharging: Do not charge the battery until it is completely drained. Similarly, avoid continuous charging for extended periods after the battery is full.
- Timely Charging: Charge the battery promptly when the vacuum cleaner indicates a low battery level.
- Unplug When Full: Disconnect the charger once the battery is fully charged to prevent overcharging.
Reasonable Charging Practices:
- Use Original Charger: Always use the original charger supplied with your robot vacuum cleaner. This ensures that the charging voltage, current, and other parameters are compatible with the battery's requirements, preventing potential damage.
- Suitable Charging Environment: Charge the battery in a well-ventilated, dry environment with a suitable temperature. Avoid charging in high-temperature, humid, or direct sunlight conditions. The ideal charging temperature range is generally between 5℃ and 35℃ (41°F - 95°F).
Battery Maintenance Tips:
- Regular Charging: Even if the vacuum cleaner is not in regular use, charge the battery periodically (e.g., once every 1-2 months) to prevent performance degradation due to excessive self-discharge.
- Deep Charge and Discharge Cycle: Every 2-3 months, perform a deep charge-discharge cycle. This involves fully charging the battery, then using the vacuum cleaner until the battery is low (but not completely drained) before recharging. This practice can help maintain battery activity and extend its lifespan.
- Cleaning: Regularly inspect and clean the battery and charger interface to remove any dust or debris. This ensures good electrical contact and prevents charging issues or overheating.
Storage Methods:
- Dry Storage: If the vacuum cleaner or battery needs to be stored for an extended period, ensure the battery is fully charged before storage. Store it in a dry and cool environment.
- Avoid Humidity and Corrosive Gases: Do not store the battery in humid conditions or places containing corrosive gases.
7. Troubleshooting
This section addresses common issues you might encounter with your replacement battery. If the problem persists, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Loose connection; Faulty charger; Dirty contacts; Battery not fully inserted. | Ensure battery connector is firmly plugged in. Check if the charger is working correctly. Clean battery and charger contacts. Re-insert battery securely. |
| Vacuum cleaner not powering on after battery replacement | Battery not installed correctly; Battery not charged; Incorrect battery type. | Re-check installation steps, ensuring the 3-prong connector is secure. Charge the battery fully. Verify battery compatibility with your vacuum model. |
| Reduced run time after charging | Battery not fully charged; Battery degradation (over time); Extreme operating temperatures. | Ensure full charge. Perform a deep charge-discharge cycle. Operate vacuum in recommended temperature range. |
| Battery overheating during charge/use | Poor ventilation; Faulty charger; Internal battery issue. | Ensure adequate ventilation around the charging area. Discontinue use and charging if overheating persists and contact support. |
8. Warranty and Support
ZTHY is committed to providing high-quality products. For any questions, concerns, or technical support regarding your replacement battery, please contact ZTHY customer service. Please have your product model number and purchase information ready when contacting support.
For more information about ZTHY products and support, you may visit the official ZTHY Store: ZTHY Store on Amazon.