RVBAT850 Battery for Shark Ion Robot R85,RV850, R75,RV761,RV1001AE,RV1000S,RV1000VL RV700_N RV720_N Vacuum Battery(ONLY Fit 2-Prong Connector, NOT for 3-Prong)

I ordered this battery as a replacement for my Shark AI robo-vac, which uses an RVBAT850 battery. I'm not a scientist at all, but the first battery I ordered didn't work, and I only noticed after we'd gotten this battery that the electrical parameters didn't match.This battery has a little less capacity than the original battery, but it works perfectly. I think the key is staying less than the original battery, not more than, when you need to replace it.I had forgotten how fast my Shark AI robo-vac was when I first got it, but it's zipping around everywhere now and not getting fixated and stuck on my dog's standing food dish rack every single time it goes in the kitchen. This is a new life for the robo-vac and means my sanity can continue as long as this battery lasts, and I'm going to order another one to keep on hand.Installation is simple; just open the battery box on your robo-vac, using a very small screwdriver bit, take the old battery out, put the new battery in and plug it in, put the cover back on, and that's it. Even I can do that now that I've seen it done.I would definitely recommend this battery to any Shark AI robo-vac or other robo-vacs that are the right size for the battery or vice versa. By the way our Shark is running around here, it's improved well over 100% in how long it runs and how good a job it does. I hadn't noticed it was gradually slowing down, but I definitely know what to look for now, and I plan to have one of these available when that happens again.

Brought our shark iq robot back to life after the previous battery got water boarded. Had to charge for almost 10 hrs before the robot was happy again, seems to run about the same amount of time