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Autumn in Cowtown
Reviewed in the United States on May 7, 2025
Fit in my Shark robot vacuum, charged quickly, and had a good price. I couldn't ask for any more than that.
Service Engineer
Reviewed in the United States on May 3, 2025
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 #2Capacity mAh : 2655 2633 (2.633Ah) Energy WH : 39.7 39.4TIME HH:MM:SS : 2:39:18 2:37:59This 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.--------------------------------------
sandraB
Reviewed in the United States on March 5, 2025
Easy to install and is a great replacement for my vacuum. Came with one replacement wiper with a screw driver.
EGNIMIA22
Reviewed in the United States on March 17, 2025
I have the Shark Ion from about 6 or so yrs ago. This battery worked fine for it. My device showed it having one bar out of the box, and took a charge for a couple hours before fully charged. I ran the vaccum and seemed to run fine and the normal length it should before docking. It does come with two different connections, must be so it can fit multiple models.The screw driver they give is way too small. I tried using it and it started to spin inside the screw. It will likely round out the middle of your screw and damage it if you use the screwdriver and keep trying to remove the screw with it. So do not use the screwdriver. The side brush is nice, as I needed a replacement for one of mine, but it's odd to only give one.. you'd think they'd give you a replacement set as a bonus since there are two side brushes.
MostAfa
Reviewed in the United States on March 17, 2025
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.
Zilacon
Reviewed in the United States on February 2, 2025
Why is it so hard to label the true capacity of these battery packs? Opening this up it is using cyan colored EVE 3.2ah 3.7v cells, these are REALLY GOOD cells, but what's advertised is 800mah short from what these batteries can deliver. If this does not matter to you, go ahead and get this battery. It is functional and will do the job.
Michael J. Tresca
Reviewed in the United States on February 16, 2025
While advertised as a 4000mAh battery, as another reviewer mentioned, it actually uses EVE 3.2Ah (3200mAh) cells. That's a significant 800mAh difference. A lower capacity means less cleaning time and more frequent charging. The product description boasts about restoring the vacuum to "original runtime" and even lasting longer "on high performance mode." If the battery isn't even delivering the advertised capacity, those claims seem dubious at best. Honestly, I got this for the additional brush and as a backup battery, so I'm not too chuffed about the difference (I use my shark in a small gym, and it doesn't take much for it cover it all). But if duration matters to you? Look elsewhere .
Lex
Reviewed in the United States on April 17, 2025
This fall short of the advertised capacity, but the original battery in my vacuum is worn out and barely works at all so it’s still an improvement over that. This comes with two connectors, depending on which model you have mine use the three. Fit into my robot back perfectly. I like that. It came with replacement brush as well, however, I’m annoyed that this brush has a single brush where the original had to. Again, still better than nothing, which is what I had before since mine popped off and got lost. It’s inexpensive and gives a little bit more life to an old robot that otherwise would’ve gone to landfill.
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