KUNLUN RVBAT850 Replacement Battery for Shark Ion Robot Vacuums

In this review of the KUNLUN RVBAT850 replacement battery, the bottom line is simple: it is for owners of Shark Ion robot vacuums that use the 2-prong connector who want a direct, plug-and-play swap that restores run time without fuss. The reviewer found installation straightforward and the battery delivered stable power comparable to the original pack. This review focuses on compatibility, charging behavior, and real-world runtime so readers can decide if this 14.4V, 3000mAh lithium-ion pack meets their needs.

Key Features

• Compatibility: Fits a wide range of Shark Ion models with the 2-prong connector, providing a direct replacement without modification.
• Capacity: The 3000mAh capacity offers extended runtime that matches or improves on many original packs for longer cleaning cycles.
• Voltage: At 14.4V the battery supplies steady voltage for consistent suction performance throughout most charge cycles.
• Fast charging: Works with the original charger station and reaches a full charge in about 3.5 hours for minimal downtime between runs.
• Safety features: Built-in protections against overcharge, over-discharge, over-current and short circuit reduce the risk of damage to the vacuum.
• Warranty: Includes a 12-month product warranty to cover early defects and provide buyer confidence.

Who It's For

This replacement battery is ideal for owners of Shark Ion models explicitly listed with the _N suffix or other 2-prong connector variants such as RV1001AE, RV850, R75 and R85 who need an affordable, user-installable battery. It suits anyone comfortable checking their original battery connector and swapping packs to restore run time.

It is not for users whose Shark Ion vacuum uses a 3-prong connector (for example models without the _N suffix like RV700, RV720, RV750, RV755). Those users should look for the correct 3-prong compatible pack to avoid a mismatch.

Pros & Cons

Pros

• Easy plug-and-play installation that matches the original battery size and function.
• Good value: customers report long run times and perceived quality for the price.
• Fast charge time when used with the original charging station, reducing downtime.
• Includes safety protections and a 12-month warranty for added peace of mind.

Cons

• Not compatible with 3-prong connector models, which can cause confusion if the connector type is not checked first.
• Some customers report mixed opinions on long-term battery life compared with OEM cells.

Specifications

Model	RVBAT850
Battery Voltage	14.4V
Capacity	3000mAh (3.0Ah)
Battery Type	Lithium ion
Connector	2-prong connector only
Charge Time	Approx. 3.5 hours with original charger
Warranty	12 months

Our Verdict

The KUNLUN RVBAT850 is a practical, cost-effective replacement for Shark Ion vacuums that use a 2-prong connector, delivering reliable power, safe charging, and easy installation. For owners who confirm connector compatibility, it restores cleaning time at a lower cost than many OEM options and comes with a one-year warranty, making it a sensible buy for most households.

Frequently Asked Questions

Will this battery fit my Shark Ion model?
It fits Shark Ion models that use a 2-prong connector such as RV1001AE, RV850, R75 and R85; check your original battery plug to confirm it is 2-prong.

How long does it take to fully charge?
Using the original charger station this battery reaches a full charge in about 3.5 hours.

Does it include any warranty?
Yes, the pack includes a 12-month product warranty to cover manufacturing defects and early failures.