1. Introduction
This manual provides essential instructions for the safe and effective use, installation, and maintenance of your ZTHY RVBAT850 replacement battery for Shark ION Robot Vacuums. Please read this manual thoroughly before installation and retain it for future reference.
2. Safety Information
- Do not disassemble, crush, or puncture the battery.
- Keep the battery away from water, fire, and high temperatures.
- Use only the original charger provided with your robot vacuum for charging the battery.
- Dispose of used batteries according to local regulations. Do not dispose of in household waste.
- If the battery shows signs of damage, swelling, or leakage, discontinue use immediately and contact support.
3. Product Overview
The ZTHY RVBAT850 is a Li-ion replacement battery designed for various Shark ION Robot Vacuum models. It features a 2-prong connector for compatibility.
- Battery Type: Li-ion
- Voltage: 14.4V
- Capacity: 2800mAh (40Wh)
- Connector: 2-prong

Image: ZTHY RVBAT850 replacement battery shown with an included screwdriver. The battery is green with a white label detailing its specifications: Type: Li-ion Rechargeable Battery, Voltage: 14.4V, Capacity: 2800mAh, Watt: 40Wh, MADE IN CHINA, with CE FC RoHS markings. It has a white 2-prong connector with red and black wires.

Image: A close-up view illustrating the 2-prong connector type. Two examples of the white 2-prong plug are shown, emphasizing the need to verify the original battery's connector type before installation.
4. Compatibility
This ZTHY RVBAT850 replacement battery is compatible with the following Shark ION Robot Vacuum models. Please verify your robot vacuum's model number before installation:
- Shark ION: R85, S86, S87, R87, R72, RV850, RV850BRN, RV850WV, RV851WV, RV852WVC, RV852WVQBL, RV871, AV1102A1US, RV763X01US, RV765X01US, RV2520A0US, RV2000WD, RVBAT850, RVBAT85002, RVBAT85004
- Shark ION UR Series: UR1000SR, UR1005AE, UR1005SR, UR1100S1US, UR1100SRUS, UR1105A1US, UR1105ARUS, UR1110A1CA, UR1110ARCA, UR1505WXUS, UR2350AE, UR2360S, UR2450WD, UR2500SR, UR755, UR755X01US
- Shark ION RV Series: RV24003DUS, RV2402WS, RV24023DUS, UR2450WS, UR24503DUS, RV2610WA, RV26101EUS, AV26101EUS, RV2610WACA, RV26101ECA, AV26101ECA, AV2610WS, AV26103EUS, AV2620WA, AV2630WA, AV26201EUS, AV26301EUS, RV2302, RV2303, RV2302AE, RV2303AE, RV2400WD, RV2402WD, UR2450WD, UR2410WD, RV2620WD, RV24002DUS, RV24022DUS, UR24502DUS, UR24102DUS, RV26202EUS, RV2610WDCA, RV2620WDCA, RV26102ECA, RV26202ECA, RV2410WD, RV24102DUS, RV2610WD, RV26102EUS
- Shark ION RV Series (continued): RV1000, RV1000AE, RV1000S, RV1001, RV1001AE, RV1001AEC, RV1001AECM, RV1001AEES, RV1001AENP, RV2300, RV2300S, RV2310, RV2310AE, RV2320S, RV1001AEVM, RV1001AEWK, RV1100S1CA, RV1100S1US, RV1100SRCA, RV1100SRUS, RV1100VRCA, RV1100VRUS, RV1101A1CA, RV1101A1US, RV1101ARCA, RV1101ARUS, RV1500ZXUS, RV2360AE, RV2360S, RV2400WD, RV2400WS, RV240BLXUS, RV2402WD, RV2402WXUS, RV2410WD, RV2502AE, RV2502AECA, RV2511AECA, RV2600WA, RV2600WD, RV2600WS, RV2610WA, RV2610WD, RV2610WDCA, RV2620WD
- Shark ION AV/QR Series: AV1010AE, AV1102A1US, AV1102ARUS, AV1110A1US, AV1110ARUS, AV2310, AV2310AE, AV2501AE, AV2501S, AV2511AE, AV2610WA, AV2610WACA, AV751, AV751R00US, AV751R01US, AV751R31US, AV752, AV752R00US, AV752R01US, AV752R31US, AV752X01US, AV753, AV753R00US, AV753R01US, AV753R31US, AV753X01US, AV9112S1US, AV9113S1US, AV911S, AV970, AV970GV1US, AV970GVRUS, CO351B, CO101B, QR1000S, QR1000SB, QR1000SG, QR1000SW, QR1100S1US, QR1100SRUS, QR1G00S1US, QR1G00SRUS, QR1W00S1US, QR1W00SRUS, R71, R75, R76

Image: The ZTHY replacement battery shown alongside icons of various compatible Shark robot vacuum models, including AV2001, AV993, AV970, R75, R85, RV871, S87, and RV2320S, illustrating broad compatibility.
5. Installation
Follow these steps to replace the battery in your Shark ION Robot Vacuum. Refer to your specific robot vacuum's user manual for detailed instructions on accessing the battery compartment.
- Power Off: Ensure your robot vacuum is powered off and disconnected from its charging dock.
- Access Battery Compartment: Flip the robot vacuum over. Locate the battery compartment cover, usually secured by screws. Use the included screwdriver to remove these screws.
- Remove Old Battery: Carefully lift the battery compartment cover. Disconnect the old battery's 2-prong connector from the robot vacuum's port. Remove the old battery.
- Install New Battery: Connect the new ZTHY RVBAT850 battery's 2-prong connector to the robot vacuum's port. Ensure the connection is secure.
- Secure Battery: Place the new battery into the compartment. Replace the battery compartment cover and secure it with the screws.
- Initial Charge: Place the robot vacuum back on its charging dock to allow the new battery to fully charge before its first use.

Image: The ZTHY RVBAT850 replacement battery and the screwdriver provided to assist with installation into your robot vacuum.
6. Operating Instructions (Battery Usage)
To maximize the lifespan and performance of your ZTHY replacement battery, observe the following guidelines:
- Initial Charge: Fully charge the battery before its first use.
- Avoid Over-Charging and Over-Discharging: Do not charge the battery until it is completely drained, nor should it be charged continuously for an excessively long time. Charge the battery in a timely manner when the vacuum cleaner indicates low battery; unplug the charger in a timely manner after it is fully charged.
- Use Original Charger: Always use the original charger that matches your robot vacuum to ensure proper charging voltage and current.
- Suitable Charging Environment: Charge the battery in a well-ventilated, dry environment with a temperature between 5℃ - 35℃ (41°F - 95°F). Avoid charging in high-temperature, humid, or sunny locations.
7. Maintenance
Proper maintenance helps extend battery life and ensures optimal performance:
- Regular Charging: Charge the battery periodically even when the vacuum cleaner isn't in use, to prevent performance loss from excessive self-discharge.
- Deep Charge and Discharge: Perform a deep charge-discharge cycle (fully charge, then use until low but not completely drained) every 2-3 months to boost battery activity and extend lifespan.
- Cleaning: Keep the battery and charger interface clean by regularly removing dust and debris. This ensures good contact and prevents charging issues or overheating.
8. Storage
If the robot vacuum needs to be stored for an extended period, follow these storage recommendations:
- Charge Before Storage: Fully charge the battery before storing the robot vacuum.
- Dry and Cool Environment: Store the battery in a dry and cool environment. Avoid humid or corrosive-gas-containing places.
- Periodic Recharging: For very long storage periods, it is advisable to periodically recharge the battery (e.g., every 3-6 months) to prevent deep discharge.
9. Troubleshooting
If you encounter issues with your battery, consider the following common solutions:
- Battery Not Charging: Ensure the charger is properly connected and the power outlet is functional. Check for any debris on the charging contacts of both the vacuum and the dock.
- Short Run Time: The battery may not be fully charged, or it might be nearing the end of its lifespan. Ensure proper charging practices as outlined in Section 6.
- Robot Vacuum Not Powering On: Verify the battery is correctly installed and fully charged. If issues persist, consult your robot vacuum's original manual for specific troubleshooting steps.
The ZTHY RVBAT850 battery incorporates multiple safety protections to prevent common issues:
- Over-Charge Protection
- Over-Heating Protection
- Over-Voltage Protection
- Short-Circuit Protection
- Over-Power Protection
- Over-Current Protection

Image: A diagram illustrating the multiple safety protections integrated into the ZTHY battery, including over-charge, over-heating, over-voltage, short-circuit, over-power, and over-current protection.
10. Specifications
| Feature | Specification |
|---|---|
| Battery Type | Lithium Ion |
| Battery Voltage | 14.4V |
| Battery Capacity | 2800mAh |
| Item Weight | 8 ounces |
| Package Dimensions | 3.93 x 2.73 x 2.16 inches |
| Model Number | RVBAT850 |
| Recommended Use | Vacuum Cleaner |

Image: A visual representation of the battery's dimensions, indicating a length of 2.75 inches and a width of 1.37 inches.
11. Warranty and Support
For warranty information or technical support regarding your ZTHY RVBAT850 replacement battery, please refer to the purchase platform or contact ZTHY customer service directly. You can visit the official ZTHY store for more information: ZTHY Store.