Shark RVBAT850 Replacement Battery For Shark Ion Robot RV750 RVBat850, Shark Ion R75 RV85 RV761 RV850 RV700_N RV720_N RV700 RV720 RV750 RVBAT700 RV1000S RV1100VL RV101AE UR1000SR Vacuum Battery Part
Condition: New
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FREE refund/replacement until Jan 31, 2026
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
May 29 – May 30
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Features
- WORKS LIKE NEW : our battery solution will restore your vacuum to original runtime, lasting longer even on high performance mode, a game-changer to your robo vacuum problems. Our battery is the perfect affordable solution for your vacuum's performance lagging.
- SOLUTION TO YOUR VACUUM PROBLEMS : Fix problems you have with the vauum such as battery no longer taking a charge, charging light was red and stayed on, vacuum emitted constant beep noises, less and less running time, performance lagging.
- EASY TO INSTALL: 2 mins Install - TOOL INCLUDED - just remove the two screws on the bottom, remove the battery connector and connect the new one, and let your machine clean of all dirt, dust, debris, hair, and anything on the floor.
- FAST & SAFE CHARGE : Compatible with battery RVBat850 & RV750 robot vacuum battery charger station. Fast charge. Top A grade lithium cells charge stable has built-in protection. Protect against overcharge, over discharge, over current, short circuit.
- 4000mAh LONG BATTERY LIFE : 14.4V | Lithium | 4000mAh upgraded extended capacity. Same size & function as for Shark ion battery replacement, easy to install and fits perfectly & work well. Full charge can last about 120 -180mins.
- COMPATIBLE : This RVBAT850 and RV750 Shark Ion replacement battery perfect compatible for Shark ion R75, R85, S87, RV771, RV761, RV700_N, RV720_N, RV850, RV1000S, RV1001AE, AV751, AV752, AV753 and more 2-Prong connector vacuum cleaners. ALSO FIT 3-Prong connector Shark ion RV700, RV720, RV750, RV755 robot vacuum cleaner.
Number of Batteries: 1 Lithium Ion batteries required. (included)
Brand: WirelessFinest
Battery Cell Composition: Lithium Ion
Unit Count: 1.0 Count
Model Name: SharkRVBat850
Package Dimensions: 4.33 x 3.39 x 0.67 inches
Item Weight: 7.4 ounces
Item model number: RV750 RVBat850
Batteries: 1 Lithium Ion batteries required. (included)
Date First Available: January 10, 2025
Manufacturer: WirelessFinest
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
May 29 – May 30
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Top Amazon Reviews
Battery Worked great
Reviewed in the United States on December 6, 2025 by MA
Worked great !!!!!!! The vacuum is better than new now !!
Reviewed in the United States on November 13, 2025 by Amazon Customer
The heart transplant for my shark was successful.. the original battery after 2 years wasn’t cutting it any more and the vacuum would only run for about 10 -15 minutes and then returned to the charger. I put in the new battery and after letting it charge overnight I turned it loose … All I can say is what a difference! The vacuum returned to the base twice to empty before it needed a charge .. very happy with this purchase
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Reviewed in the United States on September 8, 2025 by nae
Brought my Shark vacuum back to life! Easy to install and holds a charge like new.
Reviewed in the United States on July 20, 2025 by Helen
We put the battery in and it still didn’t work so I’m not sure it’s the correct battery or if something else is going on
Reviewed in the United States on October 17, 2025 by Kimberly Stuckey
Fit in my Shark robot vacuum, charged quickly, and had a good price. I couldn't ask for any more than that.
Reviewed in the United States on May 7, 2025 by Autumn in Cowtown
I bought this replacement battery for my Shark Ion Robot, and it works just like the original. Installation was simple, and the battery holds a charge well, bringing my vacuum back to life. My robot runs for a good amount of time before needing a recharge, and I haven't noticed any drop in performance. It fit perfectly without any issues, and so far, it’s been reliable. If your Shark Ion is struggling to hold a charge, this is a great solution at a reasonable price.
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Reviewed in the United States on March 17, 2025 by MostAfa
PRODUCT: “Shark RVBAT850 Replacement Battery For Shark Ion Robot RV750 RVBat850, Shark Ion R75 RV85 RV761 RV850 RV700_N RV720_N RV700 RV720 RV750 RVBAT700 RV1000S RV1100VL RV101AE UR1000SR Vacuum Battery Part by: WirelessFinest” --------------------------------------- LIKE: I like that it included a spare brush. The battery cover uses “#2 Philips” screwheads on mine. The included screwdriver was too small for them, but I can use it elsewhere. ----------- This battery works OK in my Shark ion model RV850BRN. It’s replacing the original “2450mAh to 2600mAh” battery. --------------------------------------- DISLIKE: This “nominal 14.4V” battery charges up to 16.54V in the Shark. I tested this battery capacity from full charge, down to low of 13.5V (The shark shows 1 battery bar, not flashing.) (Note: at slightly lower discharge to 13.45V the Shark showed 1”FLASHING” battery bar. That’s a warning.) The Shark still needs enough juice left at this point to STOP and drive itself back to the dock to recharge itself. (13.5V / 4 batteries in this pack = 3.375V per cell when needing to be recharged. Details: I tested this new battery capacity. I discharged this battery at 1Amp constant current rate from 16.54V to 13.5V. Here’s two test results: Test: : #1 #2 Capacity mAh : 2655 2633 (2.633Ah) <(this is close to what the old Shark battery claimed when it was new) Energy WH : 39.7 39.4 TIME HH:MM:SS : 2:39:18 2:37:59 This was over two hours runtime at this 1Amp current usage rate. I don’t have a reference comparison for how much current this Shark actually uses when active, so actual runtime may be less than this. ------------------ NOTE: I ran one discharge test down to 12V/4batteries=3V per battery and it generated 2963mAh (2.963Ah). (Still not quite reaching the rated 3.2Ah listed on the battery cell, let alone the 4Ah listed in the Ad and printed on the battery pack.) The Shark will NOT let the battery get that low. It MUST stop before that to be able to go dock and recharge. ------------------ This new battery WILL work better than my old run down Shark battery and this has about the same capacity as my old Shark battery had when it was new. I’m disappointed that the stated battery capacity for this item is overstated compared to what I received. If your Shark always tends to run down and has to go recharge BEFORE a job is completed yet, then you probably want a better higher capacity battery than this one. --------------------------------------
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Reviewed in the United States on May 3, 2025 by Service Engineer Service Engineer