Scooba 390 vs 450

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Re: Scooba 390 vs 450

Postby piokrza » April 18th, 2014, 12:24 pm

I think mastercb is thinking about this slot which is behind squeegee and connects it with dry duct.
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Re: Scooba 390 vs 450

Postby mastercb » April 18th, 2014, 12:36 pm

Vic, thank you very much for the photo. Just below your fixed part of the vacuum sqeegee, you see, that your vacuum slot is completely visible (like mine is now, too).
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Re: Scooba 390 vs 450

Postby vic7767 » April 18th, 2014, 1:05 pm

mastercb Is your 450 now picking up some of the cleaning liquid ?
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Re: Scooba 390 vs 450

Postby mastercb » April 18th, 2014, 1:27 pm

No, not really. The dirty water tank is completely dry after cleaning. Have no more idea (Filter clean, fan running) :cry: .
The only irregularity, I found, that if I want to close the roller brush cover, I have to hold away the fixed sqeegee part in order to be able to close the cover
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Re: Scooba 390 vs 450

Postby vic7767 » April 18th, 2014, 1:44 pm

It seems that you may have a distorted brush module. Contact iRobot for a replacement.
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Re: Scooba 390 vs 450

Postby madman555 » April 21st, 2014, 1:56 pm

I recently bought the 390 and stumbled on this forum. Do you think I should keep the 390 or get the 450 instead?

The area I use it on is larger than the recommended size so I would like to be able to finish without having to recharge the robot. The 390 currently is able to clean the area without recharging
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Re: Scooba 390 vs 450

Postby Roombascoobatastic » April 21st, 2014, 2:04 pm

Just so you know, when cleaning is finished you need to get that battery charged ASAP, regardless of model number.

I have the 390 and I wouldn t give it up ever. My floor is huge and the 390 gets er done.
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Re: Scooba 390 vs 450

Postby vic7767 » April 21st, 2014, 2:27 pm

I've got a Scooba 450 that is now powered by a 4400mAH LI-ion pack. The 450 has no problems cleaning the kitchen area on one run of about an hour.

There is soon to be a 6000 mAH LI-ion pack for the earlier Scooba models. The 230 is not supported.
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Re: Scooba 390 vs 450

Postby mfortuna » April 21st, 2014, 8:12 pm

Roombascoobatastic wrote:Just so you know, when cleaning is finished you need to get that battery charged ASAP, regardless of model number.

I have the 390 and I wouldn t give it up ever. My floor is huge and the 390 gets er done.


Yes, but let the battery cool down first.
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Re: Scooba 390 vs 450

Postby Roombascoobatastic » April 21st, 2014, 8:31 pm

Love love love my 390 so much I am getting another.

Still getting 120+ minutes of runtime after a year of constant use... And put immediately and permanently on charge after use.

Every time I use it, I love it more and more.

Just sayin'.
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Scooba 390 vs 450

Postby djos » April 21st, 2014, 8:44 pm

I'm also very happy with my 390 although I need to buy a replenish kit as the rubber suction skirt no longer picks up water as well as it used to (it's visibly not holding together properly at the ends).
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iRobot Roomba 562PE w/ Aerovac Bin & Sealed-bearing CHM
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Re: Scooba 390 vs 450

Postby mastercb » April 30th, 2014, 5:33 pm

vic7767 wrote:It seems that you may have a distorted brush module. Contact iRobot for a replacement.

After several phone calls with iRobot Support, I finally got my 450 replaced by a new one. Now I'am completely happy, because the new one works great. After a cleaning cycle, there are approximately 300ml of water in the dirty-water tank and the floor is clean and almost dry. :)
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Re: Scooba 390 vs 450

Postby borczm » January 5th, 2017, 8:40 pm

I have both of these units. While the 450 is newer and seems faster, the 390 cleans a heck of a lot better. "Proof is in the pudding" Check the amount of dirty water that's stored in the tank after cleaning is complete. The 450 has next to NONE while the 390 picks up majority of water it lays down during cleaning.

The 450's inability to pick up the dirty water is a known problem. Because of this, it basically adds solution to the floor, mixes it with the brush and leaves it behind.

I ended up selling the 450 for this specific reason and purchased another (used) 390 - I wish iRobot would not have discontinued this model.

I also have the braava as well as the rare scooba 230 which unfortunately developed a bladder leak, and irobot decided to glue the entire unit together to save cost, thus it's not repairable.

I hope this helps.
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Re: Scooba 390 vs 450

Postby Roombascoobatastic » January 5th, 2017, 8:47 pm

I still run my 230 and 390 still works like new too. Weekly use almost 5 years now. Still getting two full cleanings on the 390. 230 is on its 3rd battery and picks up any water the 390 misses. 230 still picks up water so well I have to empty it twice while running it with the other robots.
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Re: Scooba 390 vs 450

Postby piokrza » January 6th, 2017, 8:10 am

You're lucky man. I gone thru several 230's and all failed at max. within couple of months due to its internal bladder damage or hardware failure.
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Re: Scooba 390 vs 450

Postby babakonda » January 6th, 2017, 2:44 pm

Owning several 385/390 and a 450, I can agree that earlier models clean better. However, I noticed that they (390) leave the floor wet for way longer than 450 which is not ideal for my hardwood floors.

Btw, After updating my 450's firmware, it semmes to pick up more dirty water than before (and also uses more clean water, it almost empties the tank in a single large room run).
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Re: Scooba 390 vs 450

Postby Botty » November 21st, 2018, 6:56 pm

vic7767 wrote:I've got a Scooba 450 that is now powered by a 4400mAH LI-ion pack. The 450 has no problems cleaning the kitchen area on one run of about an hour.

There is soon to be a 6000 mAH LI-ion pack for the earlier Scooba models. The 230 is not supported.


Vic, can you please link a 4400 battery you'd recommend buying for the 450?
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Re: Scooba 390 vs 450

Postby vic7767 » November 21st, 2018, 10:05 pm

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Re: Scooba 390 vs 450

Postby Botty » November 22nd, 2018, 4:25 am

excellent, thanks

I always assumed the 40 minute run-time of the 450 is a computational rather than a physical thing. i.e. the 450 considers itself done & requiring a recharge after 40 minutes regardless of remaining battery life. But your comment about it running for an hour with the new battery suggests otherwise. Is that the case? Does the higher capacity battery communicate to the software that the 450 is able to run for longer?
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Re: Scooba 390 vs 450

Postby vic7767 » November 22nd, 2018, 10:39 am

The actual run time will depend upon the clean water tank. When empty, the deed is done.
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